Module: OsLib_HVAC_zedg_fan_coil_air_cooled

Defined in:
lib/measures/zedgk_12_hvac_fan_coil_doas_air_cooled_chiller/resources/OsLib_HVAC_zedg_fan_coil_air_cooled.rb

Overview

******************************************************************************* OpenStudio®, Copyright © Alliance for Sustainable Energy, LLC. See also openstudio.net/license *******************************************************************************

Class Method Summary collapse

Class Method Details

.addDCV(model, runner, options) ⇒ Object 



1585
1586
1587
1588
1589
1590
1591
1592
1593
1594
1595
1596
1597
1598
1599
1600
1601
1602
1603
1604
1605
 
# File 'lib/measures/zedgk_12_hvac_fan_coil_doas_air_cooled_chiller/resources/OsLib_HVAC_zedg_fan_coil_air_cooled.rb', line 1585

def self.addDCV(model, runner, options)
  options['primary_airloops']&.each do |airloop|
    if options['allHVAC']['primary']['fan'] == 'Variable'
      if airloop.airLoopHVACOutdoorAirSystem.is_initialized
        controller_mv = airloop.airLoopHVACOutdoorAirSystem.get.getControllerOutdoorAir.controllerMechanicalVentilation
        controller_mv.setDemandControlledVentilation(true)
        runner.registerInfo("Enabling demand control ventilation for #{airloop.name}")
      end
    end
  end

  options['secondary_airloops']&.each do |airloop|
    if options['allHVAC']['secondary']['fan'] == 'Variable'
      if airloop.airLoopHVACOutdoorAirSystem.is_initialized
        controller_mv = airloop.airLoopHVACOutdoorAirSystem.get.getControllerOutdoorAir.controllerMechanicalVentilation
        controller_mv.setDemandControlledVentilation(true)
        runner.registerInfo("Enabling demand control ventilation for #{airloop.name}")
      end
    end
  end
end

.assignHVACSchedules(model, runner, options = {}) ⇒ Object 



211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
 
# File 'lib/measures/zedgk_12_hvac_fan_coil_doas_air_cooled_chiller/resources/OsLib_HVAC_zedg_fan_coil_air_cooled.rb', line 211

def self.assignHVACSchedules(model, runner, options = {})
  schedulesHVAC = {}
  airloops = model.getAirLoopHVACs

  # find airloop with most primary spaces
  max_primary_spaces = 0
  representative_airloop = false
  building_HVAC_schedule = false
  building_ventilation_schedule = false
  unless options['remake_schedules']
    # if remake schedules not selected, get relevant schedules from model if they exist
    airloops.each do |air_loop|
      primary_spaces = 0
      air_loop.thermalZones.each do |thermal_zone|
        thermal_zone.spaces.each do |space|
          if space.spaceType.is_initialized
            if space.spaceType.get.name.is_initialized
              if space.spaceType.get.name.get.include? options['primarySpaceType']
                primary_spaces += 1
              end
            end
          end
        end
      end
      if primary_spaces > max_primary_spaces
        max_primary_spaces = primary_spaces
        representative_airloop = air_loop
      end
    end
  end
  if representative_airloop
    building_HVAC_schedule = representative_airloop.availabilitySchedule
    if representative_airloop.airLoopHVACOutdoorAirSystem.is_initialized
      building_ventilation_schedule_optional = representative_airloop.airLoopHVACOutdoorAirSystem.get.getControllerOutdoorAir.maximumFractionofOutdoorAirSchedule
      if building_ventilation_schedule_optional.is_initialized
        building_ventilation_schedule = building_ventilation_schedule.get
      end
    end
  end
  # build new airloop schedules if existing model doesn't have them
  if options['primarySpaceType'] == 'Classroom'
    # ventilation schedule
    unless building_ventilation_schedule
      ruleset_name = 'AEDG K-12 Ventilation Schedule'
      winter_design_day = [[24, 1]]
      summer_design_day = [[24, 1]]
      default_day = ['Weekday', [6, 0], [18, 1], [24, 0]]
      rules = []
      rules << ['Weekend', '1/1-12/31', 'Sat/Sun', [24, 0]]
      rules << ['Summer Weekday', '7/1-8/31', 'Mon/Tue/Wed/Thu/Fri', [8, 0], [13, 1], [24, 0]]
      options_ventilation = { 'name' => ruleset_name,
                              'winter_design_day' => winter_design_day,
                              'summer_design_day' => summer_design_day,
                              'default_day' => default_day,
                              'rules' => rules }
      building_ventilation_schedule = OsLib_Schedules.createComplexSchedule(model, options_ventilation)
    end
    # HVAC availability schedule
    unless building_HVAC_schedule
      ruleset_name = 'AEDG K-12 HVAC Availability Schedule'
      winter_design_day = [[24, 1]]
      summer_design_day = [[24, 1]]
      default_day = ['Weekday', [6, 0], [18, 1], [24, 0]]
      rules = []
      rules << ['Weekend', '1/1-12/31', 'Sat/Sun', [24, 0]]
      rules << ['Summer Weekday', '7/1-8/31', 'Mon/Tue/Wed/Thu/Fri', [8, 0], [13, 1], [24, 0]]
      options_hvac = { 'name' => ruleset_name,
                       'winter_design_day' => winter_design_day,
                       'summer_design_day' => summer_design_day,
                       'default_day' => default_day,
                       'rules' => rules }
      building_HVAC_schedule = OsLib_Schedules.createComplexSchedule(model, options_hvac)
    end
  elsif options['primarySpaceType'] == 'Office'
    # ventilation schedule
    unless building_ventilation_schedule
      ruleset_name = 'AEDG Office Ventilation Schedule'
      winter_design_day = [[24, 1]] # ML These are not always on in PNNL model
      summer_design_day = [[24, 1]] # ML These are not always on in PNNL model
      default_day = ['Weekday', [7, 0], [22, 1], [24, 0]] # ML PNNL has a one hour ventilation offset
      rules = []
      rules << ['Saturday', '1/1-12/31', 'Sat', [7, 0], [18, 1], [24, 0]] # ML PNNL has a one hour ventilation offset
      rules << ['Sunday', '1/1-12/31', 'Sun', [24, 0]]
      options_ventilation = { 'name' => ruleset_name,
                              'winter_design_day' => winter_design_day,
                              'summer_design_day' => summer_design_day,
                              'default_day' => default_day,
                              'rules' => rules }
      building_ventilation_schedule = OsLib_Schedules.createComplexSchedule(model, options_ventilation)
    end
    # HVAC availability schedule
    unless building_HVAC_schedule
      ruleset_name = 'AEDG Office HVAC Availability Schedule'
      winter_design_day = [[24, 1]] # ML These are not always on in PNNL model
      summer_design_day = [[24, 1]] # ML These are not always on in PNNL model
      default_day = ['Weekday', [6, 0], [22, 1], [24, 0]] # ML PNNL has a one hour ventilation offset
      rules = []
      rules << ['Saturday', '1/1-12/31', 'Sat', [6, 0], [18, 1], [24, 0]] # ML PNNL has a one hour ventilation offset
      rules << ['Sunday', '1/1-12/31', 'Sun', [24, 0]]
      options_hvac = { 'name' => ruleset_name,
                       'winter_design_day' => winter_design_day,
                       'summer_design_day' => summer_design_day,
                       'default_day' => default_day,
                       'rules' => rules }
      building_HVAC_schedule = OsLib_Schedules.createComplexSchedule(model, options_hvac)
    end
    # special loops for radiant system (different temperature setpoints)
    if options['allHVAC']['zone'] == 'Radiant'
      # create hot water schedule for radiant heating loop
      schedulesHVAC['radiant_hot_water'] = OsLib_Schedules.createComplexSchedule(model, 'name' => 'AEDG HW-Radiant-Loop-Temp-Schedule',
                                                                                        'default_day' => ['All Days', [24, 45.0]])
      # create hot water schedule for radiant cooling loop
      schedulesHVAC['radiant_chilled_water'] = OsLib_Schedules.createComplexSchedule(model, 'name' => 'AEDG CW-Radiant-Loop-Temp-Schedule',
                                                                                            'default_day' => ['All Days', [24, 15.0]])
      # create mean radiant heating and cooling setpoint schedules
      # ML ideally, should grab schedules tied to zone thermostat and make modified versions that follow the setback pattern
      # for now, create new ones that match the recommended HVAC schedule
      # mean radiant heating setpoint schedule (PNNL values)
      ruleset_name = 'AEDG Office Mean Radiant Heating Setpoint Schedule'
      winter_design_day = [[24, 18.8]]
      summer_design_day = [[6, 18.3], [22, 18.8], [24, 18.3]]
      default_day = ['Weekday', [6, 18.3], [22, 18.8], [24, 18.3]]
      rules = []
      rules << ['Saturday', '1/1-12/31', 'Sat', [6, 18.3], [18, 18.8], [24, 18.3]]
      rules << ['Sunday', '1/1-12/31', 'Sun', [24, 18.3]]
      options_radiant_heating = { 'name' => ruleset_name,
                                  'winter_design_day' => winter_design_day,
                                  'summer_design_day' => summer_design_day,
                                  'default_day' => default_day,
                                  'rules' => rules }
      mean_radiant_heating_schedule = OsLib_Schedules.createComplexSchedule(model, options_radiant_heating)
      schedulesHVAC['mean_radiant_heating'] = mean_radiant_heating_schedule
      # mean radiant cooling setpoint schedule (PNNL values)
      ruleset_name = 'AEDG Office Mean Radiant Cooling Setpoint Schedule'
      winter_design_day = [[6, 26.7], [22, 24.0], [24, 26.7]]
      summer_design_day = [[24, 24.0]]
      default_day = ['Weekday', [6, 26.7], [22, 24.0], [24, 26.7]]
      rules = []
      rules << ['Saturday', '1/1-12/31', 'Sat', [6, 26.7], [18, 24.0], [24, 26.7]]
      rules << ['Sunday', '1/1-12/31', 'Sun', [24, 26.7]]
      options_radiant_cooling = { 'name' => ruleset_name,
                                  'winter_design_day' => winter_design_day,
                                  'summer_design_day' => summer_design_day,
                                  'default_day' => default_day,
                                  'rules' => rules }
      mean_radiant_cooling_schedule = OsLib_Schedules.createComplexSchedule(model, options_radiant_cooling)
      schedulesHVAC['mean_radiant_cooling'] = mean_radiant_cooling_schedule
    end
  end
  # SAT schedule
  if options['allHVAC']['primary']['doas']
    # primary airloop is DOAS
    schedulesHVAC['primary_sat'] = sch_ruleset_DOAS_setpoint = OsLib_Schedules.createComplexSchedule(model,  'name' => 'AEDG DOAS Temperature Setpoint Schedule',
                                                                                                             'default_day' => ['All Days', [24, 20.0]])
  else
    # primary airloop is multizone VAV that cools
    schedulesHVAC['primary_sat'] = sch_ruleset_DOAS_setpoint = OsLib_Schedules.createComplexSchedule(model,  'name' => 'AEDG Cold Deck Temperature Setpoint Schedule',
                                                                                                             'default_day' => ['All Days', [24, 12.8]])
  end
  schedulesHVAC['ventilation'] = building_ventilation_schedule
  schedulesHVAC['hvac'] = building_HVAC_schedule
  # build new plant schedules as needed
  zoneHVACHotWaterPlant = ['FanCoil', 'DualDuct', 'Baseboard'] # dual duct has fan coil and baseboard
  zoneHVACChilledWaterPlant = ['FanCoil', 'DualDuct'] # dual duct has fan coil
  # hot water
  if (options['allHVAC']['primary']['heat'] == 'Water') || (options['allHVAC']['secondary']['heat'] == 'Water') || zoneHVACHotWaterPlant.include?(options['allHVAC']['zone'])
    schedulesHVAC['hot_water'] = OsLib_Schedules.createComplexSchedule(model,  'name' => 'AEDG HW-Loop-Temp-Schedule',
                                                                               'default_day' => ['All Days', [24, 67.0]])
  end
  # chilled water
  if (options['allHVAC']['primary']['cool'] == 'Water') || (options['allHVAC']['secondary']['cool'] == 'Water') || zoneHVACChilledWaterPlant.include?(options['allHVAC']['zone'])
    schedulesHVAC['chilled_water'] = OsLib_Schedules.createComplexSchedule(model, 'name' => 'AEDG CW-Loop-Temp-Schedule',
                                                                                  'default_day' => ['All Days', [24, 6.7]])
  end
  # heat pump condenser loop schedules
  if options['allHVAC']['zone'] == 'GSHP'
    # there will be a heat pump condenser loop
    # loop setpoint schedule
    schedulesHVAC['hp_loop'] = OsLib_Schedules.createComplexSchedule(model, 'name' => 'AEDG HP-Loop-Temp-Schedule',
                                                                            'default_day' => ['All Days', [24, 21]])
    # cooling component schedule (#ML won't need this if a ground loop is actually modeled)
    schedulesHVAC['hp_loop_cooling'] = OsLib_Schedules.createComplexSchedule(model,  'name' => 'AEDG HP-Loop-Clg-Temp-Schedule',
                                                                                     'default_day' => ['All Days', [24, 21]])
    # heating component schedule
    schedulesHVAC['hp_loop_heating'] = OsLib_Schedules.createComplexSchedule(model,  'name' => 'AEDG HP-Loop-Htg-Temp-Schedule',
                                                                                     'default_day' => ['All Days', [24, 5]])
  end
  if options['allHVAC']['zone'] == 'WSHP'
    # there will be a heat pump condenser loop
    # loop setpoint schedule
    schedulesHVAC['hp_loop'] = OsLib_Schedules.createComplexSchedule(model, 'name' => 'AEDG HP-Loop-Temp-Schedule',
                                                                            'default_day' => ['All Days', [24, 30]]) # PNNL
    # cooling component schedule (#ML won't need this if a ground loop is actually modeled)
    schedulesHVAC['hp_loop_cooling'] = OsLib_Schedules.createComplexSchedule(model,  'name' => 'AEDG HP-Loop-Clg-Temp-Schedule',
                                                                                     'default_day' => ['All Days', [24, 30]]) # PNNL
    # heating component schedule
    schedulesHVAC['hp_loop_heating'] = OsLib_Schedules.createComplexSchedule(model,  'name' => 'AEDG HP-Loop-Htg-Temp-Schedule',
                                                                                     'default_day' => ['All Days', [24, 20]]) # PNNL
  end

  # pass back schedulesHVAC hash
  result = schedulesHVAC
  return result
end

.createChilledWaterPlant(model, runner, chilled_water_setpoint_schedule, loop_type, chillerType) ⇒ Object 



470
471
472
473
474
475
476
477
478
479
480
481
482
483
484
485
486
487
488
489
490
491
492
493
494
495
496
497
498
499
500
501
502
503
504
505
506
507
508
509
510
511
512
513
514
515
516
517
518
519
520
521
522
523
524
525
526
527
528
529
530
531
532
533
534
535
536
537
538
539
540
541
542
543
544
545
546
547
548
549
550
551
552
553
554
555
556
557
558
559
560
561
562
563
564
565
566
567
568
569
570
571
572
573
574
575
576
577
578
579
580
581
582
583
584
585
586
587
588
589
590
591
592
593
594
595
 
# File 'lib/measures/zedgk_12_hvac_fan_coil_doas_air_cooled_chiller/resources/OsLib_HVAC_zedg_fan_coil_air_cooled.rb', line 470

def self.createChilledWaterPlant(model, runner, chilled_water_setpoint_schedule, loop_type, chillerType)
  # chilled water plant
  chilled_water_plant = OpenStudio::Model::PlantLoop.new(model)
  chilled_water_plant.setName("AEDG #{loop_type} Loop")
  chilled_water_plant.setMaximumLoopTemperature(98)
  chilled_water_plant.setMinimumLoopTemperature(1)
  loop_sizing = chilled_water_plant.sizingPlant
  loop_sizing.setLoopType('Cooling')
  if loop_type == 'Chilled Water'
    loop_sizing.setDesignLoopExitTemperature(6.7)
  elsif loop_type == 'Radiant Chilled Water'
    loop_sizing.setDesignLoopExitTemperature(15)
  end
  loop_sizing.setLoopDesignTemperatureDifference(6.7)
  # create a pump
  pump = OpenStudio::Model::PumpVariableSpeed.new(model)
  pump.setRatedPumpHead(149453) # Pa
  pump.setMotorEfficiency(0.9)
  pump.setCoefficient1ofthePartLoadPerformanceCurve(0)
  pump.setCoefficient2ofthePartLoadPerformanceCurve(0.0216)
  pump.setCoefficient3ofthePartLoadPerformanceCurve(-0.0325)
  pump.setCoefficient4ofthePartLoadPerformanceCurve(1.0095)
  # create a chiller
  if chillerType == 'WaterCooled'
    # create clgCapFuncTempCurve
    clgCapFuncTempCurve = OpenStudio::Model::CurveBiquadratic.new(model)
    clgCapFuncTempCurve.setCoefficient1Constant(1.07E+00)
    clgCapFuncTempCurve.setCoefficient2x(4.29E-02)
    clgCapFuncTempCurve.setCoefficient3xPOW2(4.17E-04)
    clgCapFuncTempCurve.setCoefficient4y(-8.10E-03)
    clgCapFuncTempCurve.setCoefficient5yPOW2(-4.02E-05)
    clgCapFuncTempCurve.setCoefficient6xTIMESY(-3.86E-04)
    clgCapFuncTempCurve.setMinimumValueofx(0)
    clgCapFuncTempCurve.setMaximumValueofx(20)
    clgCapFuncTempCurve.setMinimumValueofy(0)
    clgCapFuncTempCurve.setMaximumValueofy(50)
    # create eirFuncTempCurve
    eirFuncTempCurve = OpenStudio::Model::CurveBiquadratic.new(model)
    eirFuncTempCurve.setCoefficient1Constant(4.68E-01)
    eirFuncTempCurve.setCoefficient2x(-1.38E-02)
    eirFuncTempCurve.setCoefficient3xPOW2(6.98E-04)
    eirFuncTempCurve.setCoefficient4y(1.09E-02)
    eirFuncTempCurve.setCoefficient5yPOW2(4.62E-04)
    eirFuncTempCurve.setCoefficient6xTIMESY(-6.82E-04)
    eirFuncTempCurve.setMinimumValueofx(0)
    eirFuncTempCurve.setMaximumValueofx(20)
    eirFuncTempCurve.setMinimumValueofy(0)
    eirFuncTempCurve.setMaximumValueofy(50)
    # create eirFuncPlrCurve
    eirFuncPlrCurve = OpenStudio::Model::CurveQuadratic.new(model)
    eirFuncPlrCurve.setCoefficient1Constant(1.41E-01)
    eirFuncPlrCurve.setCoefficient2x(6.55E-01)
    eirFuncPlrCurve.setCoefficient3xPOW2(2.03E-01)
    eirFuncPlrCurve.setMinimumValueofx(0)
    eirFuncPlrCurve.setMaximumValueofx(1.2)
    # construct chiller
    chiller = OpenStudio::Model::ChillerElectricEIR.new(model, clgCapFuncTempCurve, eirFuncTempCurve, eirFuncPlrCurve)
    chiller.setReferenceCOP(6.1)
    chiller.setCondenserType('WaterCooled')
    chiller.setChillerFlowMode('LeavingSetpointModulated')
  elsif chillerType == 'AirCooled'
    # create clgCapFuncTempCurve
    clgCapFuncTempCurve = OpenStudio::Model::CurveBiquadratic.new(model)
    clgCapFuncTempCurve.setCoefficient1Constant(1.05E+00)
    clgCapFuncTempCurve.setCoefficient2x(3.36E-02)
    clgCapFuncTempCurve.setCoefficient3xPOW2(2.15E-04)
    clgCapFuncTempCurve.setCoefficient4y(-5.18E-03)
    clgCapFuncTempCurve.setCoefficient5yPOW2(-4.42E-05)
    clgCapFuncTempCurve.setCoefficient6xTIMESY(-2.15E-04)
    clgCapFuncTempCurve.setMinimumValueofx(0)
    clgCapFuncTempCurve.setMaximumValueofx(20)
    clgCapFuncTempCurve.setMinimumValueofy(0)
    clgCapFuncTempCurve.setMaximumValueofy(50)
    # create eirFuncTempCurve
    eirFuncTempCurve = OpenStudio::Model::CurveBiquadratic.new(model)
    eirFuncTempCurve.setCoefficient1Constant(5.83E-01)
    eirFuncTempCurve.setCoefficient2x(-4.04E-03)
    eirFuncTempCurve.setCoefficient3xPOW2(4.68E-04)
    eirFuncTempCurve.setCoefficient4y(-2.24E-04)
    eirFuncTempCurve.setCoefficient5yPOW2(4.81E-04)
    eirFuncTempCurve.setCoefficient6xTIMESY(-6.82E-04)
    eirFuncTempCurve.setMinimumValueofx(0)
    eirFuncTempCurve.setMaximumValueofx(20)
    eirFuncTempCurve.setMinimumValueofy(0)
    eirFuncTempCurve.setMaximumValueofy(50)
    # create eirFuncPlrCurve
    eirFuncPlrCurve = OpenStudio::Model::CurveQuadratic.new(model)
    eirFuncPlrCurve.setCoefficient1Constant(4.19E-02)
    eirFuncPlrCurve.setCoefficient2x(6.25E-01)
    eirFuncPlrCurve.setCoefficient3xPOW2(3.23E-01)
    eirFuncPlrCurve.setMinimumValueofx(0)
    eirFuncPlrCurve.setMaximumValueofx(1.2)
    # construct chiller
    chiller = OpenStudio::Model::ChillerElectricEIR.new(model, clgCapFuncTempCurve, eirFuncTempCurve, eirFuncPlrCurve)
    chiller.setReferenceCOP(2.85)
    chiller.setCondenserType('AirCooled')
    chiller.setChillerFlowMode('ConstantFlow')
  end
  # create a scheduled setpoint manager
  setpoint_manager_scheduled = OpenStudio::Model::SetpointManagerScheduled.new(model, chilled_water_setpoint_schedule)
  # create a supply bypass pipe
  pipe_supply_bypass = OpenStudio::Model::PipeAdiabatic.new(model)
  # create a supply outlet pipe
  pipe_supply_outlet = OpenStudio::Model::PipeAdiabatic.new(model)
  # create a demand bypass pipe
  pipe_demand_bypass = OpenStudio::Model::PipeAdiabatic.new(model)
  # create a demand inlet pipe
  pipe_demand_inlet = OpenStudio::Model::PipeAdiabatic.new(model)
  # create a demand outlet pipe
  pipe_demand_outlet = OpenStudio::Model::PipeAdiabatic.new(model)
  # connect components to plant loop
  # supply side components
  chilled_water_plant.addSupplyBranchForComponent(chiller)
  chilled_water_plant.addSupplyBranchForComponent(pipe_supply_bypass)
  pump.addToNode(chilled_water_plant.supplyInletNode)
  pipe_supply_outlet.addToNode(chilled_water_plant.supplyOutletNode)
  setpoint_manager_scheduled.addToNode(chilled_water_plant.supplyOutletNode)
  # demand side components (water coils are added as they are added to airloops and ZoneHVAC)
  chilled_water_plant.addDemandBranchForComponent(pipe_demand_bypass)
  pipe_demand_inlet.addToNode(chilled_water_plant.demandInletNode)
  pipe_demand_outlet.addToNode(chilled_water_plant.demandOutletNode)

  # pass back chilled water plant
  result = chilled_water_plant
  return result
end

.createCondenserLoop(model, runner, options) ⇒ Object 



597
598
599
600
601
602
603
604
605
606
607
608
609
610
611
612
613
614
615
616
617
618
619
620
621
622
623
624
625
626
627
628
629
630
631
632
633
634
635
636
637
638
639
640
641
642
643
644
645
646
647
648
649
650
651
652
653
654
655
656
657
658
659
660
661
662
663
664
665
666
667
668
669
670
671
672
673
674
675
676
677
678
679
680
681
682
683
684
685
686
687
688
689
690
691
692
693
694
695
696
697
698
699
700
701
702
703
704
705
706
707
708
709
710
711
712
713
714
715
716
717
718
719
720
721
722
723
724
725
726
727
728
729
730
731
732
733
734
735
736
737
738
739
 
# File 'lib/measures/zedgk_12_hvac_fan_coil_doas_air_cooled_chiller/resources/OsLib_HVAC_zedg_fan_coil_air_cooled.rb', line 597

def self.createCondenserLoop(model, runner, options)
  condenserLoops = {}

  # check for water-cooled chillers
  waterCooledChiller = false
  model.getChillerElectricEIRs.each do |chiller|
    next if waterCooledChiller == true
    if chiller.condenserType == 'WaterCooled'
      waterCooledChiller = true
    end
  end
  # create condenser loop for water-cooled chillers
  if waterCooledChiller
    # create condenser loop for water-cooled chiller(s)
    condenser_loop = OpenStudio::Model::PlantLoop.new(model)
    condenser_loop.setName('AEDG Condenser Loop')
    condenser_loop.setMaximumLoopTemperature(80)
    condenser_loop.setMinimumLoopTemperature(5)
    loop_sizing = condenser_loop.sizingPlant
    loop_sizing.setLoopType('Condenser')
    loop_sizing.setDesignLoopExitTemperature(29.4)
    loop_sizing.setLoopDesignTemperatureDifference(5.6)
    # create a pump
    pump = OpenStudio::Model::PumpVariableSpeed.new(model)
    pump.setRatedPumpHead(134508) # Pa
    pump.setMotorEfficiency(0.9)
    pump.setCoefficient1ofthePartLoadPerformanceCurve(0)
    pump.setCoefficient2ofthePartLoadPerformanceCurve(0.0216)
    pump.setCoefficient3ofthePartLoadPerformanceCurve(-0.0325)
    pump.setCoefficient4ofthePartLoadPerformanceCurve(1.0095)
    # create a cooling tower
    tower = OpenStudio::Model::CoolingTowerVariableSpeed.new(model)
    # create a supply bypass pipe
    pipe_supply_bypass = OpenStudio::Model::PipeAdiabatic.new(model)
    # create a supply outlet pipe
    pipe_supply_outlet = OpenStudio::Model::PipeAdiabatic.new(model)
    # create a demand bypass pipe
    pipe_demand_bypass = OpenStudio::Model::PipeAdiabatic.new(model)
    # create a demand inlet pipe
    pipe_demand_inlet = OpenStudio::Model::PipeAdiabatic.new(model)
    # create a demand outlet pipe
    pipe_demand_outlet = OpenStudio::Model::PipeAdiabatic.new(model)
    # create a setpoint manager
    setpoint_manager_follow_oa = OpenStudio::Model::SetpointManagerFollowOutdoorAirTemperature.new(model)
    setpoint_manager_follow_oa.setOffsetTemperatureDifference(0)
    setpoint_manager_follow_oa.setMaximumSetpointTemperature(80)
    setpoint_manager_follow_oa.setMinimumSetpointTemperature(5)
    # connect components to plant loop
    # supply side components
    condenser_loop.addSupplyBranchForComponent(tower)
    condenser_loop.addSupplyBranchForComponent(pipe_supply_bypass)
    pump.addToNode(condenser_loop.supplyInletNode)
    pipe_supply_outlet.addToNode(condenser_loop.supplyOutletNode)
    setpoint_manager_follow_oa.addToNode(condenser_loop.supplyOutletNode)
    # demand side components
    model.getChillerElectricEIRs.each do |chiller|
      if chiller.condenserType == 'WaterCooled' # works only if chillers not already connected to condenser loop(s)
        condenser_loop.addDemandBranchForComponent(chiller)
      end
    end
    condenser_loop.addDemandBranchForComponent(pipe_demand_bypass)
    pipe_demand_inlet.addToNode(condenser_loop.demandInletNode)
    pipe_demand_outlet.addToNode(condenser_loop.demandOutletNode)
    condenserLoops['condenser_loop'] = condenser_loop
  end
  if (options['zoneHVAC'] == 'WSHP') || (options['zoneHVAC'] == 'GSHP')
    # create condenser loop for heat pumps
    condenser_loop = OpenStudio::Model::PlantLoop.new(model)
    condenser_loop.setName('AEDG Heat Pump Loop')
    condenser_loop.setMaximumLoopTemperature(80)
    condenser_loop.setMinimumLoopTemperature(1)
    loop_sizing = condenser_loop.sizingPlant
    loop_sizing.setLoopType('Condenser')
    if options['zoneHVAC'] == 'GSHP'
      loop_sizing.setDesignLoopExitTemperature(21)
      loop_sizing.setLoopDesignTemperatureDifference(5)
    elsif options['zoneHVAC'] == 'WSHP'
      loop_sizing.setDesignLoopExitTemperature(30) # PNNL
      loop_sizing.setLoopDesignTemperatureDifference(20) # PNNL
    end
    # create a pump
    pump = OpenStudio::Model::PumpVariableSpeed.new(model)
    pump.setRatedPumpHead(134508) # Pa
    pump.setMotorEfficiency(0.9)
    pump.setCoefficient1ofthePartLoadPerformanceCurve(0)
    pump.setCoefficient2ofthePartLoadPerformanceCurve(0.0216)
    pump.setCoefficient3ofthePartLoadPerformanceCurve(-0.0325)
    pump.setCoefficient4ofthePartLoadPerformanceCurve(1.0095)
    # create a supply bypass pipe
    pipe_supply_bypass = OpenStudio::Model::PipeAdiabatic.new(model)
    # create a supply outlet pipe
    pipe_supply_outlet = OpenStudio::Model::PipeAdiabatic.new(model)
    # create a demand bypass pipe
    pipe_demand_bypass = OpenStudio::Model::PipeAdiabatic.new(model)
    # create a demand inlet pipe
    pipe_demand_inlet = OpenStudio::Model::PipeAdiabatic.new(model)
    # create a demand outlet pipe
    pipe_demand_outlet = OpenStudio::Model::PipeAdiabatic.new(model)
    # create setpoint managers
    setpoint_manager_scheduled_loop = OpenStudio::Model::SetpointManagerScheduled.new(model, options['loop_setpoint_schedule'])
    setpoint_manager_scheduled_cooling = OpenStudio::Model::SetpointManagerScheduled.new(model, options['cooling_setpoint_schedule'])
    setpoint_manager_scheduled_heating = OpenStudio::Model::SetpointManagerScheduled.new(model, options['heating_setpoint_schedule'])
    # connect components to plant loop
    # supply side components
    condenser_loop.addSupplyBranchForComponent(pipe_supply_bypass)
    pump.addToNode(condenser_loop.supplyInletNode)
    pipe_supply_outlet.addToNode(condenser_loop.supplyOutletNode)
    setpoint_manager_scheduled_loop.addToNode(condenser_loop.supplyOutletNode)
    # demand side components
    condenser_loop.addDemandBranchForComponent(pipe_demand_bypass)
    pipe_demand_inlet.addToNode(condenser_loop.demandInletNode)
    pipe_demand_outlet.addToNode(condenser_loop.demandOutletNode)
    # add additional components according to specific system type
    if options['zoneHVAC'] == 'GSHP'
      # add district cooling and heating to supply side
      district_cooling = OpenStudio::Model::DistrictCooling.new(model)
      district_cooling.setNominalCapacity(1000000000000) # large number; no autosizing
      condenser_loop.addSupplyBranchForComponent(district_cooling)
      setpoint_manager_scheduled_cooling.addToNode(district_cooling.outletModelObject.get.to_Node.get)
      district_heating = OpenStudio::Model::DistrictHeating.new(model)
      district_heating.setNominalCapacity(1000000000000) # large number; no autosizing
      district_heating.addToNode(district_cooling.outletModelObject.get.to_Node.get)
      setpoint_manager_scheduled_heating.addToNode(district_heating.outletModelObject.get.to_Node.get)
      # add heat pumps to demand side after they get created
    elsif options['zoneHVAC'] == 'WSHP'
      # add a boiler and cooling tower to supply side
      # create a boiler
      boiler = OpenStudio::Model::BoilerHotWater.new(model)
      boiler.setNominalThermalEfficiency(0.9)
      condenser_loop.addSupplyBranchForComponent(boiler)
      setpoint_manager_scheduled_heating.addToNode(boiler.outletModelObject.get.to_Node.get)
      # create a cooling tower
      tower = OpenStudio::Model::CoolingTowerSingleSpeed.new(model)
      tower.addToNode(boiler.outletModelObject.get.to_Node.get)
      setpoint_manager_scheduled_cooling.addToNode(tower.outletModelObject.get.to_Node.get)
    end
    condenserLoops['heat_pump_loop'] = condenser_loop
  end

  # pass back condenser loop(s)
  result = condenserLoops
  return result
end

.createHotWaterPlant(model, runner, hot_water_setpoint_schedule, loop_type) ⇒ Object 



416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
446
447
448
449
450
451
452
453
454
455
456
457
458
459
460
461
462
463
464
465
466
467
468
 
# File 'lib/measures/zedgk_12_hvac_fan_coil_doas_air_cooled_chiller/resources/OsLib_HVAC_zedg_fan_coil_air_cooled.rb', line 416

def self.createHotWaterPlant(model, runner, hot_water_setpoint_schedule, loop_type)
  hot_water_plant = OpenStudio::Model::PlantLoop.new(model)
  hot_water_plant.setName("AEDG #{loop_type} Loop")
  hot_water_plant.setMaximumLoopTemperature(100)
  hot_water_plant.setMinimumLoopTemperature(10)
  loop_sizing = hot_water_plant.sizingPlant
  loop_sizing.setLoopType('Heating')
  if loop_type == 'Hot Water'
    loop_sizing.setDesignLoopExitTemperature(60) # changed from 82C to 60C
  elsif loop_type == 'Radiant Hot Water'
    loop_sizing.setDesignLoopExitTemperature(60) # ML follows convention of sizing temp being larger than supplu temp
  end
  loop_sizing.setLoopDesignTemperatureDifference(16.67) # changed from 11K to 16.67K
  # create a pump
  pump = OpenStudio::Model::PumpVariableSpeed.new(model)
  pump.setRatedPumpHead(119563) # Pa
  pump.setMotorEfficiency(0.92) # changed from 0.9 to 0.92
  pump.setCoefficient1ofthePartLoadPerformanceCurve(0)
  pump.setCoefficient2ofthePartLoadPerformanceCurve(0.0216)
  pump.setCoefficient3ofthePartLoadPerformanceCurve(-0.0325)
  pump.setCoefficient4ofthePartLoadPerformanceCurve(1.0095)
  # create a boiler
  boiler = OpenStudio::Model::BoilerHotWater.new(model)
  boiler.setNominalThermalEfficiency(0.9)
  boiler.setBoilerFlowMode('LeavingSetpointModulated')
  # create a scheduled setpoint manager
  setpoint_manager_scheduled = OpenStudio::Model::SetpointManagerScheduled.new(model, hot_water_setpoint_schedule)
  # create a supply bypass pipe
  pipe_supply_bypass = OpenStudio::Model::PipeAdiabatic.new(model)
  # create a supply outlet pipe
  pipe_supply_outlet = OpenStudio::Model::PipeAdiabatic.new(model)
  # create a demand bypass pipe
  pipe_demand_bypass = OpenStudio::Model::PipeAdiabatic.new(model)
  # create a demand inlet pipe
  pipe_demand_inlet = OpenStudio::Model::PipeAdiabatic.new(model)
  # create a demand outlet pipe
  pipe_demand_outlet = OpenStudio::Model::PipeAdiabatic.new(model)
  # connect components to plant loop
  # supply side components
  hot_water_plant.addSupplyBranchForComponent(boiler)
  hot_water_plant.addSupplyBranchForComponent(pipe_supply_bypass)
  pump.addToNode(hot_water_plant.supplyInletNode)
  pipe_supply_outlet.addToNode(hot_water_plant.supplyOutletNode)
  setpoint_manager_scheduled.addToNode(hot_water_plant.supplyOutletNode)
  # demand side components (water coils are added as they are added to airloops and zoneHVAC)
  hot_water_plant.addDemandBranchForComponent(pipe_demand_bypass)
  pipe_demand_inlet.addToNode(hot_water_plant.demandInletNode)
  pipe_demand_outlet.addToNode(hot_water_plant.demandOutletNode)

  # pass back hot water plant
  result = hot_water_plant
  return result
end

.createPrimaryAirLoops(model, runner, options) ⇒ Object 



741
742
743
744
745
746
747
748
749
750
751
752
753
754
755
756
757
758
759
760
761
762
763
764
765
766
767
768
769
770
771
772
773
774
775
776
777
778
779
780
781
782
783
784
785
786
787
788
789
790
791
792
793
794
795
796
797
798
799
800
801
802
803
804
805
806
807
808
809
810
811
812
813
814
815
816
817
818
819
820
821
822
823
824
825
826
827
828
829
830
831
832
833
834
835
836
837
838
839
840
841
842
843
844
845
846
847
848
849
850
851
852
853
854
855
856
857
858
859
860
861
862
863
864
865
866
867
868
869
870
871
872
873
874
875
876
877
878
879
880
881
882
883
884
885
886
887
888
889
890
891
892
893
894
895
896
897
898
899
900
901
902
903
904
905
906
907
908
909
910
911
912
913
914
915
916
917
918
919
920
921
922
923
924
925
926
927
928
929
930
931
932
933
934
935
936
937
938
939
940
941
942
943
944
945
946
947
948
949
950
951
952
953
954
955
956
957
958
959
960
961
962
963
964
965
966
967
968
969
970
971
972
973
974
975
976
977
978
979
980
981
982
983
984
985
986
987
988
989
990
991
992
993
994
995
996
997
998
999
1000
1001
1002
1003
1004
1005
1006
1007
1008
1009
1010
1011
1012
1013
1014
1015
1016
1017
1018
1019
1020
1021
1022
1023
1024
1025
1026
1027
1028
1029
1030
1031
1032
1033
1034
1035
1036
1037
1038
1039
1040
 
# File 'lib/measures/zedgk_12_hvac_fan_coil_doas_air_cooled_chiller/resources/OsLib_HVAC_zedg_fan_coil_air_cooled.rb', line 741

def self.createPrimaryAirLoops(model, runner, options)
  primary_airloops = []
  # create primary airloop for each story
  assignedThermalZones = []
  model.getBuildingStorys.sort.each do |building_story|
    # ML stories need to be reordered from the ground up
    thermalZonesToAdd = []
    building_story.spaces.each do |space|
      # make sure spaces are assigned to thermal zones
      # otherwise might want to send a warning
      if space.thermalZone.is_initialized
        thermal_zone = space.thermalZone.get
        # grab primary zones
        if options['zonesPrimary'].include? thermal_zone
          # make sure zone was not already assigned to another air loop
          unless assignedThermalZones.include? thermal_zone
            # make sure thermal zones are not duplicated (spaces can share thermal zones)
            unless thermalZonesToAdd.include? thermal_zone
              thermalZonesToAdd << thermal_zone
            end
          end
        end
      end
    end
    # make sure thermal zones don't get added to more than one air loop
    assignedThermalZones << thermalZonesToAdd

    # create new air loop if story contains primary zones
    unless thermalZonesToAdd.empty?
      airloop_primary = OpenStudio::Model::AirLoopHVAC.new(model)
      airloop_primary.setName("AEDG Air Loop HVAC #{building_story.name}")
      # modify system sizing properties
      sizing_system = airloop_primary.sizingSystem
      # set central heating and cooling temperatures for sizing
      sizing_system.setCentralCoolingDesignSupplyAirTemperature(12.8)
      sizing_system.setCentralHeatingDesignSupplyAirTemperature(40) # ML OS default is 16.7
      # load specification
      sizing_system.setSystemOutdoorAirMethod('VentilationRateProcedure') # ML OS default is ZoneSum
      if options['primaryHVAC']['doas']
        sizing_system.setTypeofLoadtoSizeOn('VentilationRequirement') # DOAS
        sizing_system.setAllOutdoorAirinCooling(true) # DOAS
        sizing_system.setAllOutdoorAirinHeating(true) # DOAS
      else
        sizing_system.setTypeofLoadtoSizeOn('Sensible') # VAV
        sizing_system.setAllOutdoorAirinCooling(false) # VAV
        sizing_system.setAllOutdoorAirinHeating(false) # VAV
      end

      air_loop_comps = []
      # set availability schedule
      airloop_primary.setAvailabilitySchedule(options['hvac_schedule'])
      # create air loop fan
      if options['primaryHVAC']['fan'] == 'Variable'
        # create variable speed fan and set system sizing accordingly
        sizing_system.setCentralHeatingMaximumSystemAirFlowRatio(0.3) # DCV
        # variable speed fan
        fan = OpenStudio::Model::FanVariableVolume.new(model, model.alwaysOnDiscreteSchedule)
        fan.setFanEfficiency(0.6)
        fan.setPressureRise(1120) # Pa
        fan.autosizeMaximumFlowRate
        fan.setFanPowerMinimumFlowFraction(0.6)
        fan.setMotorEfficiency(0.85)
        fan.setMotorInAirstreamFraction(1.0)
        air_loop_comps << fan
      else
        sizing_system.setCentralHeatingMaximumSystemAirFlowRatio(1.0) # No DCV
        # constant speed fan
        fan = OpenStudio::Model::FanConstantVolume.new(model, model.alwaysOnDiscreteSchedule)
        fan.setFanEfficiency(0.6)
        fan.setPressureRise(500) # Pa
        fan.autosizeMaximumFlowRate
        fan.setMotorEfficiency(0.9)
        fan.setMotorInAirstreamFraction(1.0)
        air_loop_comps << fan
      end
      # create heating coil
      if options['primaryHVAC']['heat'] == 'Water'
        # water coil
        heating_coil = OpenStudio::Model::CoilHeatingWater.new(model, model.alwaysOnDiscreteSchedule)
        air_loop_comps << heating_coil
      else
        # gas coil
        heating_coil = OpenStudio::Model::CoilHeatingGas.new(model, model.alwaysOnDiscreteSchedule)
        air_loop_comps << heating_coil
      end
      # create cooling coil
      if options['primaryHVAC']['cool'] == 'Water'
        # water coil
        cooling_coil = OpenStudio::Model::CoilCoolingWater.new(model, model.alwaysOnDiscreteSchedule)
        air_loop_comps << cooling_coil
      elsif options['primaryHVAC']['cool'] == 'SingleDX'
        # single speed DX coil
        # create cooling coil
        # create clgCapFuncTempCurve
        clgCapFuncTempCurve = OpenStudio::Model::CurveBiquadratic.new(model)
        clgCapFuncTempCurve.setCoefficient1Constant(0.42415)
        clgCapFuncTempCurve.setCoefficient2x(0.04426)
        clgCapFuncTempCurve.setCoefficient3xPOW2(-0.00042)
        clgCapFuncTempCurve.setCoefficient4y(0.00333)
        clgCapFuncTempCurve.setCoefficient5yPOW2(-0.00008)
        clgCapFuncTempCurve.setCoefficient6xTIMESY(-0.00021)
        clgCapFuncTempCurve.setMinimumValueofx(17)
        clgCapFuncTempCurve.setMaximumValueofx(22)
        clgCapFuncTempCurve.setMinimumValueofy(13)
        clgCapFuncTempCurve.setMaximumValueofy(46)
        # create clgCapFuncFlowFracCurve
        clgCapFuncFlowFracCurve = OpenStudio::Model::CurveQuadratic.new(model)
        clgCapFuncFlowFracCurve.setCoefficient1Constant(0.77136)
        clgCapFuncFlowFracCurve.setCoefficient2x(0.34053)
        clgCapFuncFlowFracCurve.setCoefficient3xPOW2(-0.11088)
        clgCapFuncFlowFracCurve.setMinimumValueofx(0.75918)
        clgCapFuncFlowFracCurve.setMaximumValueofx(1.13877)
        # create clgEirFuncTempCurve
        clgEirFuncTempCurve = OpenStudio::Model::CurveBiquadratic.new(model)
        clgEirFuncTempCurve.setCoefficient1Constant(1.23649)
        clgEirFuncTempCurve.setCoefficient2x(-0.02431)
        clgEirFuncTempCurve.setCoefficient3xPOW2(0.00057)
        clgEirFuncTempCurve.setCoefficient4y(-0.01434)
        clgEirFuncTempCurve.setCoefficient5yPOW2(0.00063)
        clgEirFuncTempCurve.setCoefficient6xTIMESY(-0.00038)
        clgEirFuncTempCurve.setMinimumValueofx(17)
        clgEirFuncTempCurve.setMaximumValueofx(22)
        clgEirFuncTempCurve.setMinimumValueofy(13)
        clgEirFuncTempCurve.setMaximumValueofy(46)
        # create clgEirFuncFlowFracCurve
        clgEirFuncFlowFracCurve = OpenStudio::Model::CurveQuadratic.new(model)
        clgEirFuncFlowFracCurve.setCoefficient1Constant(1.20550)
        clgEirFuncFlowFracCurve.setCoefficient2x(-0.32953)
        clgEirFuncFlowFracCurve.setCoefficient3xPOW2(0.12308)
        clgEirFuncFlowFracCurve.setMinimumValueofx(0.75918)
        clgEirFuncFlowFracCurve.setMaximumValueofx(1.13877)
        # create clgPlrCurve
        clgPlrCurve = OpenStudio::Model::CurveQuadratic.new(model)
        clgPlrCurve.setCoefficient1Constant(0.77100)
        clgPlrCurve.setCoefficient2x(0.22900)
        clgPlrCurve.setCoefficient3xPOW2(0.0)
        clgPlrCurve.setMinimumValueofx(0.0)
        clgPlrCurve.setMaximumValueofx(1.0)
        # cooling coil
        cooling_coil = OpenStudio::Model::CoilCoolingDXSingleSpeed.new(model,
                                                                       model.alwaysOnDiscreteSchedule,
                                                                       clgCapFuncTempCurve,
                                                                       clgCapFuncFlowFracCurve,
                                                                       clgEirFuncTempCurve,
                                                                       clgEirFuncFlowFracCurve,
                                                                       clgPlrCurve)
        cooling_coil.setRatedCOP(OpenStudio::OptionalDouble.new(4))
        air_loop_comps << cooling_coil
      else
        # two speed DX coil (PNNL curves)
        # create cooling coil
        # create clgCapFuncTempCurve
        clgCapFuncTempCurve = OpenStudio::Model::CurveBiquadratic.new(model)
        clgCapFuncTempCurve.setCoefficient1Constant(1.39072)
        clgCapFuncTempCurve.setCoefficient2x(-0.0529058)
        clgCapFuncTempCurve.setCoefficient3xPOW2(0.0018423)
        clgCapFuncTempCurve.setCoefficient4y(0.00058267)
        clgCapFuncTempCurve.setCoefficient5yPOW2(-0.000186814)
        clgCapFuncTempCurve.setCoefficient6xTIMESY(0.000265159)
        clgCapFuncTempCurve.setMinimumValueofx(16.5556)
        clgCapFuncTempCurve.setMaximumValueofx(22.1111)
        clgCapFuncTempCurve.setMinimumValueofy(23.7778)
        clgCapFuncTempCurve.setMaximumValueofy(47.66)
        # create clgCapFuncFlowFracCurve
        clgCapFuncFlowFracCurve = OpenStudio::Model::CurveQuadratic.new(model)
        clgCapFuncFlowFracCurve.setCoefficient1Constant(0.718954)
        clgCapFuncFlowFracCurve.setCoefficient2x(0.435436)
        clgCapFuncFlowFracCurve.setCoefficient3xPOW2(-0.154193)
        clgCapFuncFlowFracCurve.setMinimumValueofx(0.75)
        clgCapFuncFlowFracCurve.setMaximumValueofx(1.25)
        # create clgEirFuncTempCurve
        clgEirFuncTempCurve = OpenStudio::Model::CurveBiquadratic.new(model)
        clgEirFuncTempCurve.setCoefficient1Constant(-0.536161)
        clgEirFuncTempCurve.setCoefficient2x(0.105138)
        clgEirFuncTempCurve.setCoefficient3xPOW2(-0.00172659)
        clgEirFuncTempCurve.setCoefficient4y(0.0149848)
        clgEirFuncTempCurve.setCoefficient5yPOW2(0.000659948)
        clgEirFuncTempCurve.setCoefficient6xTIMESY(-0.0017385)
        clgEirFuncTempCurve.setMinimumValueofx(16.5556)
        clgEirFuncTempCurve.setMaximumValueofx(22.1111)
        clgEirFuncTempCurve.setMinimumValueofy(23.7778)
        clgEirFuncTempCurve.setMaximumValueofy(47.66)
        # create clgEirFuncFlowFracCurve
        clgEirFuncFlowFracCurve = OpenStudio::Model::CurveQuadratic.new(model)
        clgEirFuncFlowFracCurve.setCoefficient1Constant(1.19525)
        clgEirFuncFlowFracCurve.setCoefficient2x(-0.306138)
        clgEirFuncFlowFracCurve.setCoefficient3xPOW2(0.110973)
        clgEirFuncFlowFracCurve.setMinimumValueofx(0.75)
        clgEirFuncFlowFracCurve.setMaximumValueofx(1.25)
        # create clgPlrCurve
        clgPlrCurve = OpenStudio::Model::CurveQuadratic.new(model)
        clgPlrCurve.setCoefficient1Constant(0.77100)
        clgPlrCurve.setCoefficient2x(0.22900)
        clgPlrCurve.setCoefficient3xPOW2(0.0)
        clgPlrCurve.setMinimumValueofx(0.0)
        clgPlrCurve.setMaximumValueofx(1.0)
        # cooling coil
        cooling_coil = OpenStudio::Model::CoilCoolingDXTwoSpeed.new(model,
                                                                    model.alwaysOnDiscreteSchedule,
                                                                    clgCapFuncTempCurve,
                                                                    clgCapFuncFlowFracCurve,
                                                                    clgEirFuncTempCurve,
                                                                    clgEirFuncFlowFracCurve,
                                                                    clgPlrCurve,
                                                                    clgCapFuncTempCurve,
                                                                    clgEirFuncTempCurve)
        cooling_coil.setRatedHighSpeedCOP(4)
        cooling_coil.setRatedLowSpeedCOP(4)
        air_loop_comps << cooling_coil
      end
      unless options['zoneHVAC'] == 'DualDuct'
        # create controller outdoor air
        controller_OA = OpenStudio::Model::ControllerOutdoorAir.new(model)
        controller_OA.autosizeMinimumOutdoorAirFlowRate
        controller_OA.autosizeMaximumOutdoorAirFlowRate
        # create ventilation schedules and assign to OA controller
        if options['primaryHVAC']['doas']
          controller_OA.setMinimumFractionofOutdoorAirSchedule(model.alwaysOnDiscreteSchedule)
          controller_OA.setMaximumFractionofOutdoorAirSchedule(model.alwaysOnDiscreteSchedule)
        else
          # multizone VAV that ventilates
          controller_OA.setMaximumFractionofOutdoorAirSchedule(options['ventilation_schedule'])
          controller_OA.setEconomizerControlType('DifferentialEnthalpy')
          # add night cycling (ML would people actually do this for a VAV system?))
          airloop_primary.setNightCycleControlType('CycleOnAny') # ML Does this work with variable speed fans?
        end
        controller_OA.setHeatRecoveryBypassControlType('BypassWhenOAFlowGreaterThanMinimum')
        # create outdoor air system
        system_OA = OpenStudio::Model::AirLoopHVACOutdoorAirSystem.new(model, controller_OA)
        air_loop_comps << system_OA
        # create ERV
        heat_exchanger = OpenStudio::Model::HeatExchangerAirToAirSensibleAndLatent.new(model)
        heat_exchanger.setAvailabilitySchedule(model.alwaysOnDiscreteSchedule)
        sensible_eff = 0.75
        latent_eff = 0.69
        heat_exchanger.setSensibleEffectivenessat100CoolingAirFlow(sensible_eff)
        heat_exchanger.setSensibleEffectivenessat100HeatingAirFlow(sensible_eff)
        heat_exchanger.setSensibleEffectivenessat75CoolingAirFlow(sensible_eff)
        heat_exchanger.setSensibleEffectivenessat75HeatingAirFlow(sensible_eff)
        heat_exchanger.setLatentEffectivenessat100CoolingAirFlow(latent_eff)
        heat_exchanger.setLatentEffectivenessat100HeatingAirFlow(latent_eff)
        heat_exchanger.setLatentEffectivenessat75CoolingAirFlow(latent_eff)
        heat_exchanger.setLatentEffectivenessat75HeatingAirFlow(latent_eff)
        heat_exchanger.setFrostControlType('ExhaustOnly')
        heat_exchanger.setThresholdTemperature(-12.2)
        heat_exchanger.setInitialDefrostTimeFraction(0.1670)
        heat_exchanger.setRateofDefrostTimeFractionIncrease(0.0240)
        heat_exchanger.setEconomizerLockout(false)
      end
      # create scheduled setpoint manager for airloop
      if options['primaryHVAC']['doas'] || (options['zoneHVAC'] == 'DualDuct')
        # DOAS or VAV for cooling and not ventilation
        setpoint_manager = OpenStudio::Model::SetpointManagerScheduled.new(model, options['primary_sat_schedule'])
      else
        # VAV for cooling and ventilation
        setpoint_manager = OpenStudio::Model::SetpointManagerOutdoorAirReset.new(model)
        setpoint_manager.setSetpointatOutdoorLowTemperature(15.6)
        setpoint_manager.setOutdoorLowTemperature(14.4)
        setpoint_manager.setSetpointatOutdoorHighTemperature(12.8)
        setpoint_manager.setOutdoorHighTemperature(21.1)
      end
      # connect components to airloop
      # find the supply inlet node of the airloop
      airloop_supply_inlet = airloop_primary.supplyInletNode
      # add the components to the airloop
      air_loop_comps.each do |comp|
        comp.addToNode(airloop_supply_inlet)
        if comp.to_CoilHeatingWater.is_initialized
          options['hot_water_plant'].addDemandBranchForComponent(comp)
          comp.controllerWaterCoil.get.setMinimumActuatedFlow(0)
        elsif comp.to_CoilCoolingWater.is_initialized
          options['chilled_water_plant'].addDemandBranchForComponent(comp)
          comp.controllerWaterCoil.get.setMinimumActuatedFlow(0)
        end
      end
      # add erv to outdoor air system
      unless options['zoneHVAC'] == 'DualDuct'
        heat_exchanger.addToNode(system_OA.outboardOANode.get)
      end
      # add setpoint manager to supply equipment outlet node
      setpoint_manager.addToNode(airloop_primary.supplyOutletNode)
      # add thermal zones to airloop
      thermalZonesToAdd.each do |zone|
        # make an air terminal for the zone
        if options['primaryHVAC']['fan'] == 'Variable'
          air_terminal = OpenStudio::Model::AirTerminalSingleDuctVAVNoReheat.new(model, model.alwaysOnDiscreteSchedule)
        else
          air_terminal = OpenStudio::Model::AirTerminalSingleDuctUncontrolled.new(model, model.alwaysOnDiscreteSchedule)
        end
        # attach new terminal to the zone and to the airloop
        airloop_primary.addBranchForZone(zone, air_terminal.to_StraightComponent)
      end
      primary_airloops << airloop_primary
    end
  end

  # pass back primary airloops
  result = primary_airloops
  return result
end

.createPrimaryZoneEquipment(model, runner, options) ⇒ Object 



1291
1292
1293
1294
1295
1296
1297
1298
1299
1300
1301
1302
1303
1304
1305
1306
1307
1308
1309
1310
1311
1312
1313
1314
1315
1316
1317
1318
1319
1320
1321
1322
1323
1324
1325
1326
1327
1328
1329
1330
1331
1332
1333
1334
1335
1336
1337
1338
1339
1340
1341
1342
1343
1344
1345
1346
1347
1348
1349
1350
1351
1352
1353
1354
1355
1356
1357
1358
1359
1360
1361
1362
1363
1364
1365
1366
1367
1368
1369
1370
1371
1372
1373
1374
1375
1376
1377
1378
1379
1380
1381
1382
1383
1384
1385
1386
1387
1388
1389
1390
1391
1392
1393
1394
1395
1396
1397
1398
1399
1400
1401
1402
1403
1404
1405
1406
1407
1408
1409
1410
1411
1412
1413
1414
1415
1416
1417
1418
1419
1420
1421
1422
1423
1424
1425
1426
1427
1428
1429
1430
1431
1432
1433
1434
1435
1436
1437
1438
1439
1440
1441
1442
1443
1444
1445
1446
1447
1448
1449
1450
1451
1452
1453
1454
1455
1456
1457
1458
1459
1460
1461
1462
1463
1464
1465
1466
1467
1468
1469
1470
1471
1472
1473
1474
1475
1476
1477
1478
1479
1480
1481
1482
1483
1484
1485
1486
1487
1488
1489
1490
1491
1492
1493
1494
1495
1496
1497
1498
1499
1500
1501
1502
1503
1504
1505
1506
1507
1508
1509
1510
1511
1512
1513
1514
1515
1516
1517
1518
1519
1520
1521
1522
1523
1524
1525
1526
1527
1528
1529
1530
1531
1532
1533
1534
1535
1536
1537
1538
1539
1540
1541
1542
1543
1544
1545
1546
1547
1548
1549
1550
1551
1552
1553
1554
1555
1556
1557
1558
1559
1560
1561
1562
1563
1564
1565
1566
1567
1568
1569
1570
1571
1572
1573
1574
1575
1576
1577
1578
1579
1580
1581
1582
1583
 
# File 'lib/measures/zedgk_12_hvac_fan_coil_doas_air_cooled_chiller/resources/OsLib_HVAC_zedg_fan_coil_air_cooled.rb', line 1291

def self.createPrimaryZoneEquipment(model, runner, options)
  model.getThermalZones.each do |zone|
    if options['zonesPrimary'].include? zone
      if options['zoneHVAC'] == 'FanCoil'
        # create fan coil
        # create fan
        fan = OpenStudio::Model::FanOnOff.new(model, model.alwaysOnDiscreteSchedule)
        fan.setFanEfficiency(0.6)
        fan.setPressureRise(299) # Pa
        fan.autosizeMaximumFlowRate
        fan.setMotorEfficiency(0.85)
        fan.setMotorInAirstreamFraction(1.0)
        # create cooling coil and connect to chilled water plant
        cooling_coil = OpenStudio::Model::CoilCoolingWater.new(model, model.alwaysOnDiscreteSchedule)
        options['chilled_water_plant'].addDemandBranchForComponent(cooling_coil)
        cooling_coil.controllerWaterCoil.get.setMinimumActuatedFlow(0)
        # create heating coil and connect to hot water plant
        heating_coil = OpenStudio::Model::CoilHeatingWater.new(model, model.alwaysOnDiscreteSchedule)
        options['hot_water_plant'].addDemandBranchForComponent(heating_coil)
        heating_coil.controllerWaterCoil.get.setMinimumActuatedFlow(0)
        # construct fan coil
        fan_coil = OpenStudio::Model::ZoneHVACFourPipeFanCoil.new(model,
                                                                  model.alwaysOnDiscreteSchedule,
                                                                  fan,
                                                                  cooling_coil,
                                                                  heating_coil)
        fan_coil.setMaximumOutdoorAirFlowRate(0)
        # add fan coil to thermal zone
        fan_coil.addToThermalZone(zone)
      elsif (options['zoneHVAC'] == 'WSHP') || (options['zoneHVAC'] == 'GSHP')
        # create water source heat pump and attach to heat pump loop
        # create fan
        fan = OpenStudio::Model::FanOnOff.new(model, model.alwaysOnDiscreteSchedule)
        fan.setFanEfficiency(0.5)
        fan.setPressureRise(75) # Pa
        fan.autosizeMaximumFlowRate
        fan.setMotorEfficiency(0.9)
        fan.setMotorInAirstreamFraction(1.0)
        # create cooling coil and connect to heat pump loop
        cooling_coil = OpenStudio::Model::CoilCoolingWaterToAirHeatPumpEquationFit.new(model)
        cooling_coil.setRatedCoolingCoefficientofPerformance(6.45)
        cooling_coil.setTotalCoolingCapacityCoefficient1(-9.149069561)
        cooling_coil.setTotalCoolingCapacityCoefficient2(10.87814026)
        cooling_coil.setTotalCoolingCapacityCoefficient3(-1.718780157)
        cooling_coil.setTotalCoolingCapacityCoefficient4(0.746414818)
        cooling_coil.setTotalCoolingCapacityCoefficient5(0.0)
        cooling_coil.setSensibleCoolingCapacityCoefficient1(-5.462690012)
        cooling_coil.setSensibleCoolingCapacityCoefficient2(17.95968138)
        cooling_coil.setSensibleCoolingCapacityCoefficient3(-11.87818402)
        cooling_coil.setSensibleCoolingCapacityCoefficient4(-0.980163419)
        cooling_coil.setSensibleCoolingCapacityCoefficient5(0.767285761)
        cooling_coil.setSensibleCoolingCapacityCoefficient6(0.0)
        cooling_coil.setCoolingPowerConsumptionCoefficient1(-3.205409884)
        cooling_coil.setCoolingPowerConsumptionCoefficient2(-0.976409399)
        cooling_coil.setCoolingPowerConsumptionCoefficient3(3.97892546)
        cooling_coil.setCoolingPowerConsumptionCoefficient4(0.938181818)
        cooling_coil.setCoolingPowerConsumptionCoefficient5(0.0)
        options['heat_pump_loop'].addDemandBranchForComponent(cooling_coil)
        # create heating coil and connect to heat pump loop
        heating_coil = OpenStudio::Model::CoilHeatingWaterToAirHeatPumpEquationFit.new(model)
        heating_coil.setRatedHeatingCoefficientofPerformance(4.0)
        heating_coil.setHeatingCapacityCoefficient1(-1.361311959)
        heating_coil.setHeatingCapacityCoefficient2(-2.471798046)
        heating_coil.setHeatingCapacityCoefficient3(4.173164514)
        heating_coil.setHeatingCapacityCoefficient4(0.640757401)
        heating_coil.setHeatingCapacityCoefficient5(0.0)
        heating_coil.setHeatingPowerConsumptionCoefficient1(-2.176941116)
        heating_coil.setHeatingPowerConsumptionCoefficient2(0.832114286)
        heating_coil.setHeatingPowerConsumptionCoefficient3(1.570743399)
        heating_coil.setHeatingPowerConsumptionCoefficient4(0.690793651)
        heating_coil.setHeatingPowerConsumptionCoefficient5(0.0)
        options['heat_pump_loop'].addDemandBranchForComponent(heating_coil)
        # create supplemental heating coil
        supplemental_heating_coil = OpenStudio::Model::CoilHeatingElectric.new(model, model.alwaysOnDiscreteSchedule)
        # construct heat pump
        heat_pump = OpenStudio::Model::ZoneHVACWaterToAirHeatPump.new(model,
                                                                      model.alwaysOnDiscreteSchedule,
                                                                      fan,
                                                                      heating_coil,
                                                                      cooling_coil,
                                                                      supplemental_heating_coil)
        heat_pump.setSupplyAirFlowRateWhenNoCoolingorHeatingisNeeded(OpenStudio::OptionalDouble.new(0))
        heat_pump.setOutdoorAirFlowRateDuringCoolingOperation(OpenStudio::OptionalDouble.new(0))
        heat_pump.setOutdoorAirFlowRateDuringHeatingOperation(OpenStudio::OptionalDouble.new(0))
        heat_pump.setOutdoorAirFlowRateWhenNoCoolingorHeatingisNeeded(OpenStudio::OptionalDouble.new(0))
        # add heat pump to thermal zone
        heat_pump.addToThermalZone(zone)
      elsif options['zoneHVAC'] == 'ASHP'
        # create air source heat pump
        # create fan
        fan = OpenStudio::Model::FanOnOff.new(model, model.alwaysOnDiscreteSchedule)
        fan.setFanEfficiency(0.5)
        fan.setPressureRise(75) # Pa
        fan.autosizeMaximumFlowRate
        fan.setMotorEfficiency(0.9)
        fan.setMotorInAirstreamFraction(1.0)
        # create heating coil
        # create htgCapFuncTempCurve
        htgCapFuncTempCurve = OpenStudio::Model::CurveCubic.new(model)
        htgCapFuncTempCurve.setCoefficient1Constant(0.758746)
        htgCapFuncTempCurve.setCoefficient2x(0.027626)
        htgCapFuncTempCurve.setCoefficient3xPOW2(0.000148716)
        htgCapFuncTempCurve.setCoefficient4xPOW3(0.0000034992)
        htgCapFuncTempCurve.setMinimumValueofx(-20)
        htgCapFuncTempCurve.setMaximumValueofx(20)
        # create htgCapFuncFlowFracCurve
        htgCapFuncFlowFracCurve = OpenStudio::Model::CurveCubic.new(model)
        htgCapFuncFlowFracCurve.setCoefficient1Constant(0.84)
        htgCapFuncFlowFracCurve.setCoefficient2x(0.16)
        htgCapFuncFlowFracCurve.setCoefficient3xPOW2(0)
        htgCapFuncFlowFracCurve.setCoefficient4xPOW3(0)
        htgCapFuncFlowFracCurve.setMinimumValueofx(0.5)
        htgCapFuncFlowFracCurve.setMaximumValueofx(1.5)
        # create htgEirFuncTempCurve
        htgEirFuncTempCurve = OpenStudio::Model::CurveCubic.new(model)
        htgEirFuncTempCurve.setCoefficient1Constant(1.19248)
        htgEirFuncTempCurve.setCoefficient2x(-0.0300438)
        htgEirFuncTempCurve.setCoefficient3xPOW2(0.00103745)
        htgEirFuncTempCurve.setCoefficient4xPOW3(-0.000023328)
        htgEirFuncTempCurve.setMinimumValueofx(-20)
        htgEirFuncTempCurve.setMaximumValueofx(20)
        # create htgEirFuncFlowFracCurve
        htgEirFuncFlowFracCurve = OpenStudio::Model::CurveQuadratic.new(model)
        htgEirFuncFlowFracCurve.setCoefficient1Constant(1.3824)
        htgEirFuncFlowFracCurve.setCoefficient2x(-0.4336)
        htgEirFuncFlowFracCurve.setCoefficient3xPOW2(0.0512)
        htgEirFuncFlowFracCurve.setMinimumValueofx(0)
        htgEirFuncFlowFracCurve.setMaximumValueofx(1)
        # create htgPlrCurve
        htgPlrCurve = OpenStudio::Model::CurveQuadratic.new(model)
        htgPlrCurve.setCoefficient1Constant(0.75)
        htgPlrCurve.setCoefficient2x(0.25)
        htgPlrCurve.setCoefficient3xPOW2(0.0)
        htgPlrCurve.setMinimumValueofx(0.0)
        htgPlrCurve.setMaximumValueofx(1.0)
        # heating coil
        heating_coil = OpenStudio::Model::CoilHeatingDXSingleSpeed.new(model,
                                                                       model.alwaysOnDiscreteSchedule,
                                                                       htgCapFuncTempCurve,
                                                                       htgCapFuncFlowFracCurve,
                                                                       htgEirFuncTempCurve,
                                                                       htgEirFuncFlowFracCurve,
                                                                       htgPlrCurve)
        heating_coil.setRatedCOP(3.4)
        heating_coil.setCrankcaseHeaterCapacity(200)
        heating_coil.setMaximumOutdoorDryBulbTemperatureforCrankcaseHeaterOperation(8)
        heating_coil.autosizeResistiveDefrostHeaterCapacity
        # create cooling coil
        # create clgCapFuncTempCurve
        clgCapFuncTempCurve = OpenStudio::Model::CurveBiquadratic.new(model)
        clgCapFuncTempCurve.setCoefficient1Constant(0.942587793)
        clgCapFuncTempCurve.setCoefficient2x(0.009543347)
        clgCapFuncTempCurve.setCoefficient3xPOW2(0.0018423)
        clgCapFuncTempCurve.setCoefficient4y(-0.011042676)
        clgCapFuncTempCurve.setCoefficient5yPOW2(0.000005249)
        clgCapFuncTempCurve.setCoefficient6xTIMESY(-0.000009720)
        clgCapFuncTempCurve.setMinimumValueofx(17)
        clgCapFuncTempCurve.setMaximumValueofx(22)
        clgCapFuncTempCurve.setMinimumValueofy(13)
        clgCapFuncTempCurve.setMaximumValueofy(46)
        # create clgCapFuncFlowFracCurve
        clgCapFuncFlowFracCurve = OpenStudio::Model::CurveQuadratic.new(model)
        clgCapFuncFlowFracCurve.setCoefficient1Constant(0.718954)
        clgCapFuncFlowFracCurve.setCoefficient2x(0.435436)
        clgCapFuncFlowFracCurve.setCoefficient3xPOW2(-0.154193)
        clgCapFuncFlowFracCurve.setMinimumValueofx(0.75)
        clgCapFuncFlowFracCurve.setMaximumValueofx(1.25)
        # create clgEirFuncTempCurve
        clgEirFuncTempCurve = OpenStudio::Model::CurveBiquadratic.new(model)
        clgEirFuncTempCurve.setCoefficient1Constant(0.342414409)
        clgEirFuncTempCurve.setCoefficient2x(0.034885008)
        clgEirFuncTempCurve.setCoefficient3xPOW2(-0.000623700)
        clgEirFuncTempCurve.setCoefficient4y(0.004977216)
        clgEirFuncTempCurve.setCoefficient5yPOW2(0.000437951)
        clgEirFuncTempCurve.setCoefficient6xTIMESY(-0.000728028)
        clgEirFuncTempCurve.setMinimumValueofx(17)
        clgEirFuncTempCurve.setMaximumValueofx(22)
        clgEirFuncTempCurve.setMinimumValueofy(13)
        clgEirFuncTempCurve.setMaximumValueofy(46)
        # create clgEirFuncFlowFracCurve
        clgEirFuncFlowFracCurve = OpenStudio::Model::CurveQuadratic.new(model)
        clgEirFuncFlowFracCurve.setCoefficient1Constant(1.1552)
        clgEirFuncFlowFracCurve.setCoefficient2x(-0.1808)
        clgEirFuncFlowFracCurve.setCoefficient3xPOW2(0.0256)
        clgEirFuncFlowFracCurve.setMinimumValueofx(0.5)
        clgEirFuncFlowFracCurve.setMaximumValueofx(1.5)
        # create clgPlrCurve
        clgPlrCurve = OpenStudio::Model::CurveQuadratic.new(model)
        clgPlrCurve.setCoefficient1Constant(0.75)
        clgPlrCurve.setCoefficient2x(0.25)
        clgPlrCurve.setCoefficient3xPOW2(0.0)
        clgPlrCurve.setMinimumValueofx(0.0)
        clgPlrCurve.setMaximumValueofx(1.0)
        # cooling coil
        cooling_coil = OpenStudio::Model::CoilCoolingDXSingleSpeed.new(model,
                                                                       model.alwaysOnDiscreteSchedule,
                                                                       clgCapFuncTempCurve,
                                                                       clgCapFuncFlowFracCurve,
                                                                       clgEirFuncTempCurve,
                                                                       clgEirFuncFlowFracCurve,
                                                                       clgPlrCurve)
        cooling_coil.setRatedCOP(OpenStudio::OptionalDouble.new(4))
        # create supplemental heating coil
        supplemental_heating_coil = OpenStudio::Model::CoilHeatingElectric.new(model, model.alwaysOnDiscreteSchedule)
        # construct heat pump
        heat_pump = OpenStudio::Model::ZoneHVACPackagedTerminalHeatPump.new(model,
                                                                            model.alwaysOnDiscreteSchedule,
                                                                            fan,
                                                                            heating_coil,
                                                                            cooling_coil,
                                                                            supplemental_heating_coil)
        heat_pump.setSupplyAirFlowRateWhenNoCoolingorHeatingisNeeded(0)
        heat_pump.setOutdoorAirFlowRateDuringCoolingOperation(0)
        heat_pump.setOutdoorAirFlowRateDuringHeatingOperation(0)
        heat_pump.setOutdoorAirFlowRateWhenNoCoolingorHeatingisNeeded(0)
        # add heat pump to thermal zone
        heat_pump.addToThermalZone(zone)
      elsif options['zoneHVAC'] == 'Baseboard'
        # create baseboard heater add add to thermal zone and hot water loop
        baseboard_coil = OpenStudio::Model::CoilHeatingWaterBaseboard.new(model)
        baseboard_heater = OpenStudio::Model::ZoneHVACBaseboardConvectiveWater.new(model, model.alwaysOnDiscreteSchedule, baseboard_coil)
        baseboard_heater.addToThermalZone(zone)
        options['hot_water_plant'].addDemandBranchForComponent(baseboard_coil)
      elsif options['zoneHVAC'] == 'Radiant'
        # create low temperature radiant object and add to thermal zone and radiant plant loops
        # create hot water coil and attach to radiant hot water loop
        heating_coil = OpenStudio::Model::CoilHeatingLowTempRadiantVarFlow.new(model, options['mean_radiant_heating_setpoint_schedule'])
        options['radiant_hot_water_plant'].addDemandBranchForComponent(heating_coil)
        # create chilled water coil and attach to radiant chilled water loop
        cooling_coil = OpenStudio::Model::CoilCoolingLowTempRadiantVarFlow.new(model, options['mean_radiant_cooling_setpoint_schedule'])
        options['radiant_chilled_water_plant'].addDemandBranchForComponent(cooling_coil)
        low_temp_radiant = OpenStudio::Model::ZoneHVACLowTempRadiantVarFlow.new(model,
                                                                                model.alwaysOnDiscreteSchedule,
                                                                                heating_coil,
                                                                                cooling_coil)
        low_temp_radiant.setRadiantSurfaceType('Floors')
        low_temp_radiant.setHydronicTubingInsideDiameter(0.012)
        low_temp_radiant.setTemperatureControlType('MeanRadiantTemperature')
        low_temp_radiant.addToThermalZone(zone)
        # create radiant floor construction and substitute for existing floor (interior or exterior) constructions
        # create materials for radiant floor construction
        layers = []
        # ignore layer below insulation, which will depend on boundary condition
        layers << rigid_insulation_1in = OpenStudio::Model::StandardOpaqueMaterial.new(model, 'Rough', 0.0254, 0.02, 56.06, 1210)
        layers << concrete_2in = OpenStudio::Model::StandardOpaqueMaterial.new(model, 'MediumRough', 0.0508, 2.31, 2322, 832)
        layers << concrete_2in
        # create radiant floor construction from materials
        radiant_floor = OpenStudio::Model::ConstructionWithInternalSource.new(layers)
        radiant_floor.setSourcePresentAfterLayerNumber(2)
        radiant_floor.setSourcePresentAfterLayerNumber(2)
        # assign radiant construction to zone floor
        zone.spaces.each do |space|
          space.surfaces.each do |surface|
            if surface.surfaceType == 'Floor'
              surface.setConstruction(radiant_floor)
            end
          end
        end
      elsif options['zoneHVAC'] == 'DualDuct'
        # create baseboard heater add add to thermal zone and hot water loop
        baseboard_coil = OpenStudio::Model::CoilHeatingWaterBaseboard.new(model)
        baseboard_heater = OpenStudio::Model::ZoneHVACBaseboardConvectiveWater.new(model, model.alwaysOnDiscreteSchedule, baseboard_coil)
        baseboard_heater.addToThermalZone(zone)
        options['hot_water_plant'].addDemandBranchForComponent(baseboard_coil)
        # create fan coil (to mimic functionality of DOAS)
        # variable speed fan
        fan = OpenStudio::Model::FanVariableVolume.new(model, model.alwaysOnDiscreteSchedule)
        fan.setFanEfficiency(0.69)
        fan.setPressureRise(75) # Pa #ML This number is a guess; zone equipment pretending to be a DOAS
        fan.autosizeMaximumFlowRate
        fan.setFanPowerMinimumFlowFraction(0.6)
        fan.setMotorEfficiency(0.9)
        fan.setMotorInAirstreamFraction(1.0)
        # create chilled water coil and attach to chilled water loop
        cooling_coil = OpenStudio::Model::CoilCoolingWater.new(model, model.alwaysOnDiscreteSchedule)
        options['chilled_water_plant'].addDemandBranchForComponent(cooling_coil)
        cooling_coil.controllerWaterCoil.get.setMinimumActuatedFlow(0)
        # create hot water coil and attach to hot water loop
        heating_coil = OpenStudio::Model::CoilHeatingWater.new(model, model.alwaysOnDiscreteSchedule)
        options['hot_water_plant'].addDemandBranchForComponent(heating_coil)
        heating_coil.controllerWaterCoil.get.setMinimumActuatedFlow(0)
        # construct fan coil (DOAS) and attach to thermal zone
        fan_coil_doas = OpenStudio::Model::ZoneHVACFourPipeFanCoil.new(model,
                                                                       options['ventilation_schedule'],
                                                                       fan,
                                                                       cooling_coil,
                                                                       heating_coil)
        fan_coil_doas.setCapacityControlMethod('VariableFanVariableFlow')
        fan_coil_doas.addToThermalZone(zone)
      end
    end
  end
end

.createSecondaryAirLoops(model, runner, options) ⇒ Object 



1042
1043
1044
1045
1046
1047
1048
1049
1050
1051
1052
1053
1054
1055
1056
1057
1058
1059
1060
1061
1062
1063
1064
1065
1066
1067
1068
1069
1070
1071
1072
1073
1074
1075
1076
1077
1078
1079
1080
1081
1082
1083
1084
1085
1086
1087
1088
1089
1090
1091
1092
1093
1094
1095
1096
1097
1098
1099
1100
1101
1102
1103
1104
1105
1106
1107
1108
1109
1110
1111
1112
1113
1114
1115
1116
1117
1118
1119
1120
1121
1122
1123
1124
1125
1126
1127
1128
1129
1130
1131
1132
1133
1134
1135
1136
1137
1138
1139
1140
1141
1142
1143
1144
1145
1146
1147
1148
1149
1150
1151
1152
1153
1154
1155
1156
1157
1158
1159
1160
1161
1162
1163
1164
1165
1166
1167
1168
1169
1170
1171
1172
1173
1174
1175
1176
1177
1178
1179
1180
1181
1182
1183
1184
1185
1186
1187
1188
1189
1190
1191
1192
1193
1194
1195
1196
1197
1198
1199
1200
1201
1202
1203
1204
1205
1206
1207
1208
1209
1210
1211
1212
1213
1214
1215
1216
1217
1218
1219
1220
1221
1222
1223
1224
1225
1226
1227
1228
1229
1230
1231
1232
1233
1234
1235
1236
1237
1238
1239
1240
1241
1242
1243
1244
1245
1246
1247
1248
1249
1250
1251
1252
1253
1254
1255
1256
1257
1258
1259
1260
1261
1262
1263
1264
1265
1266
1267
1268
1269
1270
1271
1272
1273
1274
1275
1276
1277
1278
1279
1280
1281
1282
1283
1284
1285
1286
1287
1288
1289
 
# File 'lib/measures/zedgk_12_hvac_fan_coil_doas_air_cooled_chiller/resources/OsLib_HVAC_zedg_fan_coil_air_cooled.rb', line 1042

def self.createSecondaryAirLoops(model, runner, options)
  secondary_airloops = []
  # create secondary airloop for each secondary zone
  model.getThermalZones.each do |zone|
    if options['zonesSecondary'].include? zone
      # create secondary airloop
      airloop_secondary = OpenStudio::Model::AirLoopHVAC.new(model)
      airloop_secondary.setName("AEDG Air Loop HVAC #{zone.name}")
      # modify system sizing properties
      sizing_system = airloop_secondary.sizingSystem
      # set central heating and cooling temperatures for sizing
      sizing_system.setCentralCoolingDesignSupplyAirTemperature(12.8)
      sizing_system.setCentralHeatingDesignSupplyAirTemperature(40) # ML OS default is 16.7
      # load specification
      sizing_system.setSystemOutdoorAirMethod('VentilationRateProcedure') # ML OS default is ZoneSum
      sizing_system.setTypeofLoadtoSizeOn('Sensible') # PSZ
      sizing_system.setAllOutdoorAirinCooling(false) # PSZ
      sizing_system.setAllOutdoorAirinHeating(false) # PSZ
      sizing_system.setCentralHeatingMaximumSystemAirFlowRatio(1.0) # Constant volume fan
      air_loop_comps = []
      # set availability schedule (HVAC operation schedule)
      airloop_secondary.setAvailabilitySchedule(options['hvac_schedule'])
      if options['secondaryHVAC']['fan'] == 'Variable'
        # create variable speed fan and set system sizing accordingly
        sizing_system.setCentralHeatingMaximumSystemAirFlowRatio(0.3) # DCV
        # variable speed fan
        fan = OpenStudio::Model::FanVariableVolume.new(model, model.alwaysOnDiscreteSchedule)
        fan.setFanEfficiency(0.6)
        fan.setPressureRise(498) # Pa
        fan.autosizeMaximumFlowRate
        fan.setFanPowerMinimumFlowFraction(0.6)
        fan.setMotorEfficiency(0.85)
        fan.setMotorInAirstreamFraction(1.0)
        air_loop_comps << fan
      else
        sizing_system.setCentralHeatingMaximumSystemAirFlowRatio(1.0) # No DCV
        # constant speed fan
        fan = OpenStudio::Model::FanConstantVolume.new(model, model.alwaysOnDiscreteSchedule)
        fan.setFanEfficiency(0.6)
        fan.setPressureRise(498) # Pa
        fan.autosizeMaximumFlowRate
        fan.setMotorEfficiency(0.85)
        fan.setMotorInAirstreamFraction(1.0)
        air_loop_comps << fan
      end
      # create cooling coil
      if options['secondaryHVAC']['cool'] == 'Water'
        # water coil
        cooling_coil = OpenStudio::Model::CoilCoolingWater.new(model, model.alwaysOnDiscreteSchedule)
        air_loop_comps << cooling_coil
      elsif options['secondaryHVAC']['cool'] == 'SingleDX'
        # single speed DX coil
        # create cooling coil
        # create clgCapFuncTempCurve
        clgCapFuncTempCurve = OpenStudio::Model::CurveBiquadratic.new(model)
        clgCapFuncTempCurve.setCoefficient1Constant(0.42415)
        clgCapFuncTempCurve.setCoefficient2x(0.04426)
        clgCapFuncTempCurve.setCoefficient3xPOW2(-0.00042)
        clgCapFuncTempCurve.setCoefficient4y(0.00333)
        clgCapFuncTempCurve.setCoefficient5yPOW2(-0.00008)
        clgCapFuncTempCurve.setCoefficient6xTIMESY(-0.00021)
        clgCapFuncTempCurve.setMinimumValueofx(17)
        clgCapFuncTempCurve.setMaximumValueofx(22)
        clgCapFuncTempCurve.setMinimumValueofy(13)
        clgCapFuncTempCurve.setMaximumValueofy(46)
        # create clgCapFuncFlowFracCurve
        clgCapFuncFlowFracCurve = OpenStudio::Model::CurveQuadratic.new(model)
        clgCapFuncFlowFracCurve.setCoefficient1Constant(0.77136)
        clgCapFuncFlowFracCurve.setCoefficient2x(0.34053)
        clgCapFuncFlowFracCurve.setCoefficient3xPOW2(-0.11088)
        clgCapFuncFlowFracCurve.setMinimumValueofx(0.75918)
        clgCapFuncFlowFracCurve.setMaximumValueofx(1.13877)
        # create clgEirFuncTempCurve
        clgEirFuncTempCurve = OpenStudio::Model::CurveBiquadratic.new(model)
        clgEirFuncTempCurve.setCoefficient1Constant(1.23649)
        clgEirFuncTempCurve.setCoefficient2x(-0.02431)
        clgEirFuncTempCurve.setCoefficient3xPOW2(0.00057)
        clgEirFuncTempCurve.setCoefficient4y(-0.01434)
        clgEirFuncTempCurve.setCoefficient5yPOW2(0.00063)
        clgEirFuncTempCurve.setCoefficient6xTIMESY(-0.00038)
        clgEirFuncTempCurve.setMinimumValueofx(17)
        clgEirFuncTempCurve.setMaximumValueofx(22)
        clgEirFuncTempCurve.setMinimumValueofy(13)
        clgEirFuncTempCurve.setMaximumValueofy(46)
        # create clgEirFuncFlowFracCurve
        clgEirFuncFlowFracCurve = OpenStudio::Model::CurveQuadratic.new(model)
        clgEirFuncFlowFracCurve.setCoefficient1Constant(1.20550)
        clgEirFuncFlowFracCurve.setCoefficient2x(-0.32953)
        clgEirFuncFlowFracCurve.setCoefficient3xPOW2(0.12308)
        clgEirFuncFlowFracCurve.setMinimumValueofx(0.75918)
        clgEirFuncFlowFracCurve.setMaximumValueofx(1.13877)
        # create clgPlrCurve
        clgPlrCurve = OpenStudio::Model::CurveQuadratic.new(model)
        clgPlrCurve.setCoefficient1Constant(0.77100)
        clgPlrCurve.setCoefficient2x(0.22900)
        clgPlrCurve.setCoefficient3xPOW2(0.0)
        clgPlrCurve.setMinimumValueofx(0.0)
        clgPlrCurve.setMaximumValueofx(1.0)
        # cooling coil
        cooling_coil = OpenStudio::Model::CoilCoolingDXSingleSpeed.new(model,
                                                                       model.alwaysOnDiscreteSchedule,
                                                                       clgCapFuncTempCurve,
                                                                       clgCapFuncFlowFracCurve,
                                                                       clgEirFuncTempCurve,
                                                                       clgEirFuncFlowFracCurve,
                                                                       clgPlrCurve)
        cooling_coil.setRatedCOP(OpenStudio::OptionalDouble.new(4))
        air_loop_comps << cooling_coil
      else
        # two speed DX coil (PNNL curves)
        # create cooling coil
        # create clgCapFuncTempCurve
        clgCapFuncTempCurve = OpenStudio::Model::CurveBiquadratic.new(model)
        clgCapFuncTempCurve.setCoefficient1Constant(1.39072)
        clgCapFuncTempCurve.setCoefficient2x(-0.0529058)
        clgCapFuncTempCurve.setCoefficient3xPOW2(0.0018423)
        clgCapFuncTempCurve.setCoefficient4y(0.00058267)
        clgCapFuncTempCurve.setCoefficient5yPOW2(-0.000186814)
        clgCapFuncTempCurve.setCoefficient6xTIMESY(0.000265159)
        clgCapFuncTempCurve.setMinimumValueofx(16.5556)
        clgCapFuncTempCurve.setMaximumValueofx(22.1111)
        clgCapFuncTempCurve.setMinimumValueofy(23.7778)
        clgCapFuncTempCurve.setMaximumValueofy(47.66)
        # create clgCapFuncFlowFracCurve
        clgCapFuncFlowFracCurve = OpenStudio::Model::CurveQuadratic.new(model)
        clgCapFuncFlowFracCurve.setCoefficient1Constant(0.718954)
        clgCapFuncFlowFracCurve.setCoefficient2x(0.435436)
        clgCapFuncFlowFracCurve.setCoefficient3xPOW2(-0.154193)
        clgCapFuncFlowFracCurve.setMinimumValueofx(0.75)
        clgCapFuncFlowFracCurve.setMaximumValueofx(1.25)
        # create clgEirFuncTempCurve
        clgEirFuncTempCurve = OpenStudio::Model::CurveBiquadratic.new(model)
        clgEirFuncTempCurve.setCoefficient1Constant(-0.536161)
        clgEirFuncTempCurve.setCoefficient2x(0.105138)
        clgEirFuncTempCurve.setCoefficient3xPOW2(-0.00172659)
        clgEirFuncTempCurve.setCoefficient4y(0.0149848)
        clgEirFuncTempCurve.setCoefficient5yPOW2(0.000659948)
        clgEirFuncTempCurve.setCoefficient6xTIMESY(-0.0017385)
        clgEirFuncTempCurve.setMinimumValueofx(16.5556)
        clgEirFuncTempCurve.setMaximumValueofx(22.1111)
        clgEirFuncTempCurve.setMinimumValueofy(23.7778)
        clgEirFuncTempCurve.setMaximumValueofy(47.66)
        # create clgEirFuncFlowFracCurve
        clgEirFuncFlowFracCurve = OpenStudio::Model::CurveQuadratic.new(model)
        clgEirFuncFlowFracCurve.setCoefficient1Constant(1.19525)
        clgEirFuncFlowFracCurve.setCoefficient2x(-0.306138)
        clgEirFuncFlowFracCurve.setCoefficient3xPOW2(0.110973)
        clgEirFuncFlowFracCurve.setMinimumValueofx(0.75)
        clgEirFuncFlowFracCurve.setMaximumValueofx(1.25)
        # create clgPlrCurve
        clgPlrCurve = OpenStudio::Model::CurveQuadratic.new(model)
        clgPlrCurve.setCoefficient1Constant(0.77100)
        clgPlrCurve.setCoefficient2x(0.22900)
        clgPlrCurve.setCoefficient3xPOW2(0.0)
        clgPlrCurve.setMinimumValueofx(0.0)
        clgPlrCurve.setMaximumValueofx(1.0)
        # cooling coil
        cooling_coil = OpenStudio::Model::CoilCoolingDXTwoSpeed.new(model,
                                                                    model.alwaysOnDiscreteSchedule,
                                                                    clgCapFuncTempCurve,
                                                                    clgCapFuncFlowFracCurve,
                                                                    clgEirFuncTempCurve,
                                                                    clgEirFuncFlowFracCurve,
                                                                    clgPlrCurve,
                                                                    clgCapFuncTempCurve,
                                                                    clgEirFuncTempCurve)
        cooling_coil.setRatedHighSpeedCOP(4)
        cooling_coil.setRatedLowSpeedCOP(4)
        air_loop_comps << cooling_coil
      end
      if options['secondaryHVAC']['heat'] == 'Water'
        # water coil
        heating_coil = OpenStudio::Model::CoilHeatingWater.new(model, model.alwaysOnDiscreteSchedule)
        air_loop_comps << heating_coil
      else
        # gas coil
        heating_coil = OpenStudio::Model::CoilHeatingGas.new(model, model.alwaysOnDiscreteSchedule)
        air_loop_comps << heating_coil
      end
      # create controller outdoor air
      controller_OA = OpenStudio::Model::ControllerOutdoorAir.new(model)
      controller_OA.autosizeMinimumOutdoorAirFlowRate
      controller_OA.autosizeMaximumOutdoorAirFlowRate
      controller_OA.setEconomizerControlType('DifferentialEnthalpy')
      controller_OA.setMaximumFractionofOutdoorAirSchedule(options['ventilation_schedule'])
      controller_OA.setHeatRecoveryBypassControlType('BypassWhenOAFlowGreaterThanMinimum')
      # create outdoor air system
      system_OA = OpenStudio::Model::AirLoopHVACOutdoorAirSystem.new(model, controller_OA)
      air_loop_comps << system_OA
      # create ERV
      heat_exchanger = OpenStudio::Model::HeatExchangerAirToAirSensibleAndLatent.new(model)
      heat_exchanger.setAvailabilitySchedule(model.alwaysOnDiscreteSchedule)
      sensible_eff = 0.75
      latent_eff = 0.69
      heat_exchanger.setSensibleEffectivenessat100CoolingAirFlow(sensible_eff)
      heat_exchanger.setSensibleEffectivenessat100HeatingAirFlow(sensible_eff)
      heat_exchanger.setSensibleEffectivenessat75CoolingAirFlow(sensible_eff)
      heat_exchanger.setSensibleEffectivenessat75HeatingAirFlow(sensible_eff)
      heat_exchanger.setLatentEffectivenessat100CoolingAirFlow(latent_eff)
      heat_exchanger.setLatentEffectivenessat100HeatingAirFlow(latent_eff)
      heat_exchanger.setLatentEffectivenessat75CoolingAirFlow(latent_eff)
      heat_exchanger.setLatentEffectivenessat75HeatingAirFlow(latent_eff)
      heat_exchanger.setFrostControlType('ExhaustOnly')
      heat_exchanger.setThresholdTemperature(-12.2)
      heat_exchanger.setInitialDefrostTimeFraction(0.1670)
      heat_exchanger.setRateofDefrostTimeFractionIncrease(0.0240)
      heat_exchanger.setEconomizerLockout(false)
      # create setpoint manager for airloop
      setpoint_manager = OpenStudio::Model::SetpointManagerSingleZoneReheat.new(model)
      setpoint_manager.setMinimumSupplyAirTemperature(10)
      setpoint_manager.setMaximumSupplyAirTemperature(50)
      setpoint_manager.setControlZone(zone)
      # connect components to airloop
      # find the supply inlet node of the airloop
      airloop_supply_inlet = airloop_secondary.supplyInletNode
      # add the components to the airloop
      air_loop_comps.each do |comp|
        comp.addToNode(airloop_supply_inlet)
        if comp.to_CoilHeatingWater.is_initialized
          options['hot_water_plant'].addDemandBranchForComponent(comp)
          comp.controllerWaterCoil.get.setMinimumActuatedFlow(0)
        elsif comp.to_CoilCoolingWater.is_initialized
          options['chilled_water_plant'].addDemandBranchForComponent(comp)
          comp.controllerWaterCoil.get.setMinimumActuatedFlow(0)
        end
      end
      # add erv to outdoor air system
      heat_exchanger.addToNode(system_OA.outboardOANode.get)
      # add setpoint manager to supply equipment outlet node
      setpoint_manager.addToNode(airloop_secondary.supplyOutletNode)
      # add thermal zone to airloop
      if options['secondaryHVAC']['fan'] == 'Variable'
        air_terminal = OpenStudio::Model::AirTerminalSingleDuctVAVNoReheat.new(model, model.alwaysOnDiscreteSchedule)
      else
        air_terminal = OpenStudio::Model::AirTerminalSingleDuctUncontrolled.new(model, model.alwaysOnDiscreteSchedule)
      end
      # attach new terminal to the zone and to the airloop
      airloop_secondary.addBranchForZone(zone, air_terminal.to_StraightComponent)
      # add night cycling
      airloop_secondary.setNightCycleControlType('CycleOnAny') # ML Does this work with variable speed fans?
      secondary_airloops << airloop_secondary
    end
  end

  # pass back secondary airloops
  result = secondary_airloops
  return result
end

.doSomething(input) ⇒ Object

do something



8
9
10
11
12
13
14
 
# File 'lib/measures/zedgk_12_hvac_fan_coil_doas_air_cooled_chiller/resources/OsLib_HVAC_zedg_fan_coil_air_cooled.rb', line 8

def self.doSomething(input)
  # do something
  output = input

  result = output
  return result
end

.removeEquipment(model, runner) ⇒ Object 



175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
 
# File 'lib/measures/zedgk_12_hvac_fan_coil_doas_air_cooled_chiller/resources/OsLib_HVAC_zedg_fan_coil_air_cooled.rb', line 175

def self.removeEquipment(model, runner)
  airloops = model.getAirLoopHVACs
  plantLoops = model.getPlantLoops
  zones = model.getThermalZones

  # remove all airloops
  airloops.each(&:remove)

  # remove all zone equipment except zone exhaust fans
  zones.each do |zone|
    zone.equipment.each do |equip|
      if equip.to_FanZoneExhaust.is_initialized
      else
        equip.remove
      end
    end
  end

  # remove plant loops
  plantLoops.each do |plantLoop|
    # get the demand components and see if water use connection, then save it
    # notify user with info statement if supply side of plant loop had heat exchanger for refrigeration
    usedForSHWorRefrigeration = false
    plantLoop.demandComponents.each do |comp| # AP code to check your comments above
      if comp.to_WaterUseConnections.is_initialized || comp.to_CoilWaterHeatingDesuperheater.is_initialized
        usedForSHWorRefrigeration = true
      end
    end
    if usedForSHWorRefrigeration == false
      plantLoop.remove
    else
      runner.registerWarning("#{plantLoop.name} is used for SHW or refrigeration heat reclaim.  Loop will not be deleted")
    end
  end
end

.reportConditions(model, runner, condition, extra_string = '') ⇒ Object 



148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
 
# File 'lib/measures/zedgk_12_hvac_fan_coil_doas_air_cooled_chiller/resources/OsLib_HVAC_zedg_fan_coil_air_cooled.rb', line 148

def self.reportConditions(model, runner, condition, extra_string = '')
  airloops = model.getAirLoopHVACs
  plantLoops = model.getPlantLoops
  zones = model.getThermalZones

  # count up zone equipment (not counting zone exhaust fans)
  zoneHasEquip = false
  zonesWithEquipCounter = 0

  zones.each do |zone|
    if !zone.equipment.empty?
      zone.equipment.each do |equip|
        unless equip.to_FanZoneExhaust.is_initialized
          zonesWithEquipCounter += 1
          break
        end
      end
    end
  end

  if condition == 'initial'
    runner.registerInitialCondition("The building started with #{airloops.size} air loops and #{plantLoops.size} plant loops. #{zonesWithEquipCounter} zones were conditioned with zone equipment.")
  elsif condition == 'final'
    runner.registerFinalCondition("The building finished with #{airloops.size} air loops and #{plantLoops.size} plant loops. #{zonesWithEquipCounter} zones are conditioned with zone equipment. #{extra_string}")
  end
end

.sortZones(model, runner, options = {}) ⇒ Object 



74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
 
# File 'lib/measures/zedgk_12_hvac_fan_coil_doas_air_cooled_chiller/resources/OsLib_HVAC_zedg_fan_coil_air_cooled.rb', line 74

def self.sortZones(model, runner, options = {})
  # set defaults to use if user inputs not passed in
  defaults = { 'standardBuildingTypeTest' => nil, # not used for now
               'secondarySpaceTypeTest' => nil,
               'ceilingReturnPlenumSpaceType' => nil }

  # merge user inputs with defaults
  options = defaults.merge(options)

  # set up zone type arrays
  zonesPrimary = []
  zonesSecondary = []
  zonesPlenum = []
  zonesUnconditioned = []

  # get thermal zones
  zones = model.getThermalZones
  zones.each do |zone|
    # assign appropriate zones to zonesPlenum or zonesUnconditioned (those that don't have thermostats or zone HVAC equipment)
    # if not conditioned then add to zonesPlenum or zonesUnconditioned
    if zone.thermostatSetpointDualSetpoint.is_initialized || !zone.equipment.empty?
      # zone is conditioned.  check if its space type is secondary or primary
      spaces = zone.spaces
      spaces.each do |space|
        # if a zone has already been assigned as secondary, skip
        next if zonesSecondary.include? zone
        # get space type if it exists
        next unless space.spaceType.is_initialized
        spaceType = space.spaceType.get
        # get standards information
        # for now skip standardsBuildingType and just rely on the standardsSpaceType. Seems like enough.
        next unless spaceType.standardsSpaceType.is_initialized
        standardSpaceType = spaceType.standardsSpaceType.get
        # test space type against secondary space type array
        # if any space type in zone is secondary, assign zone as secondary
        if options['secondarySpaceTypeTest'].include? standardSpaceType
          zonesSecondary << zone
        end
      end
      # if zone not assigned as secondary, assign as primary
      unless zonesSecondary.include? zone
        zonesPrimary << zone
      end
    else
      # determine if zone is a plenum zone or general unconditioned zone
      # assume it is a plenum if it has at least one planum space
      zone.spaces.each do |space|
        # if a zone has already been assigned as a plenum, skip
        next if zonesPlenum.include? zone
        # if zone not assigned as a plenum, get space type if it exists
        # compare to plenum space type if it has been assigned
        if space.spaceType.is_initialized && (options['ceilingReturnPlenumSpaceType'].nil? == false)
          spaceType = space.spaceType.get
          if spaceType == options['ceilingReturnPlenumSpaceType']
            zonesPlenum << zone # zone has a plenum space; assign it as a plenum
          end
        end
      end
      # if zone not assigned as a plenum, assign it as unconditioned
      unless zonesPlenum.include? zone
        zonesUnconditioned << zone
      end
    end
  end

  zonesSorted = { 'zonesPrimary' => zonesPrimary,
                  'zonesSecondary' => zonesSecondary,
                  'zonesPlenum' => zonesPlenum,
                  'zonesUnconditioned' => zonesUnconditioned }
  # pass back zonesSorted hash
  result = zonesSorted
  return result
end

.validateAndAddPlenumZonesToSystem(model, runner, options = {}) ⇒ Object

validate and make plenum zones



17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
 
# File 'lib/measures/zedgk_12_hvac_fan_coil_doas_air_cooled_chiller/resources/OsLib_HVAC_zedg_fan_coil_air_cooled.rb', line 17

def self.validateAndAddPlenumZonesToSystem(model, runner, options = {})
  # set defaults to use if user inputs not passed in
  defaults = {
    'zonesPlenum' => nil,
    'zonesPrimary' => nil,
    'type' => 'ceilingReturn'
  }

  # merge user inputs with defaults
  options = defaults.merge(options)

  # array of valid ceiling plenums
  zoneSurfaceHash = {}
  zonePlenumHash = {}

  if options['zonesPlenum'].nil?
    runner.registerWarning('No plenum zones were passed in, validateAndAddPlenumZonesToSystem will not alter the model.')
  else
    options['zonesPlenum'].each do |zone|
      # get spaces in zone
      spaces = zone.spaces
      # get adjacent spaces
      spaces.each do |space|
        # get surfaces
        surfaces = space.surfaces
        # loop through surfaces looking for floors with surface boundary condition, grab zone that surface's parent space is in.
        surfaces.each do |surface|
          if (surface.outsideBoundaryCondition == 'Surface') && (surface.surfaceType == 'Floor')
            next unless surface.adjacentSurface.is_initialized
            adjacentSurface = surface.adjacentSurface.get
            next unless adjacentSurface.space.is_initialized
            adjacentSurfaceSpace =  adjacentSurface.space.get
            next unless adjacentSurfaceSpace.thermalZone.is_initialized
            adjacentSurfaceSpaceZone = adjacentSurfaceSpace.thermalZone.get
            if options['zonesPrimary'].include? adjacentSurfaceSpaceZone
              if zoneSurfaceHash[adjacentSurfaceSpaceZone].nil? || (surface.grossArea > zoneSurfaceHash[adjacentSurfaceSpaceZone])
                adjacentSurfaceSpaceZone.setReturnPlenum(zone)
                zoneSurfaceHash[adjacentSurfaceSpaceZone] = surface.grossArea
                zonePlenumHash[adjacentSurfaceSpaceZone] = zone
              end
            end
          end
        end
      end
    end
  end

  # report out results of zone-plenum hash
  zonePlenumHash.each do |zone, plenum|
    runner.registerInfo("#{plenum.name} has been set as a return air plenum for #{zone.name}.")
  end

  # pass back zone-plenum hash
  result = zonePlenumHash
  return result
end