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Zone Airflow

13 object types from idfpy.models.zone_airflow · EnergyPlus 26.2

Object Summary
ZoneAirBalance:OutdoorAir Provide a combined zone outdoor air flow by including interactions between mechanical ventilation, …
ZoneCoolTower:Shower A cooltower (sometimes referred to as a wind tower or a shower cooling tower) models passive downdraught …
ZoneCrossMixing ZoneCrossMixing exchanges an equal amount of air between two zones or spaces.
ZoneEarthtube Earth Tube is specified as a design level which is modified by a Schedule fraction, temperature difference …
ZoneEarthtube:Parameters Parameters that apply to the vertical model for an earth tube
ZoneInfiltration:DesignFlowRate Infiltration is specified as a design level which is modified by a Schedule fraction, temperature difference …
ZoneInfiltration:EffectiveLeakageArea Infiltration is specified as effective leakage area at 4 Pa, schedule fraction, stack and wind coefficients, …
ZoneInfiltration:FlowCoefficient Infiltration is specified as flow coefficient, schedule fraction, stack and wind coefficients, and is a …
ZoneMixing ZoneMixing is a simple air exchange from one zone or space to another.
ZoneRefrigerationDoorMixing Refrigeration Door Mixing is used for an opening between two zones (or spaces) that are at the same elevation …
ZoneThermalChimney A thermal chimney is a vertical shaft utilizing solar radiation to enhance natural ventilation.
ZoneVentilation:DesignFlowRate Ventilation is specified as a design level which is modified by a schedule fraction, temperature difference …
ZoneVentilation:WindandStackOpenArea This object is specified as natural ventilation driven by wind and stack effect only: Ventilation Wind = Cw * …

ZoneAirBalance:OutdoorAir

from idfpy.models import ZoneAirBalanceOutdoorAir

Provide a combined zone outdoor air flow by including interactions between mechanical ventilation, infiltration and duct leakage. This object will combine outdoor flows from all ZoneInfiltration and ZoneVentilation objects in the same zone. Balanced flows will be summed, while unbalanced flows will be added in quadrature.

Field Type Default Details
name
Name required
string
zone_name
Zone Name required
reference Names a Zone
air_balance_method
Air Balance Method
choice Quadrature None: Only perform simple calculations without using a combined zone outdoor air. Quadrature: A combined outdoor air is used in the quadrature sum.
One of None, Quadrature
induced_outdoor_air_due_to_unbalanced_duct_leakage
Induced Outdoor Air Due to Unbalanced Duct Leakage
number
m3/s
0.0 Range: ≥ 0
induced_outdoor_air_schedule_name
Induced Outdoor Air Schedule Name
reference This schedule contains the fraction values applied to the Induced Outdoor Air given in the previous input field (0.0 - 1.0).
Names a ExternalInterface:FunctionalMockupUnitExport:To:Schedule, ExternalInterface:FunctionalMockupUnitImport:To:Schedule, ExternalInterface:Schedule, Schedule:Compact, Schedule:Constant, Schedule:File, Schedule:Year, Schedule:Year:Rules

ZoneCoolTower:Shower

from idfpy.models import ZoneCoolTowerShower

A cooltower (sometimes referred to as a wind tower or a shower cooling tower) models passive downdraught evaporative cooling (PDEC) that is designed to capture the wind at the top of a tower and cool the outdoor air using water evaporation before delivering it to a zone (or space).

Field Type Default Details
name
Name required
string
availability_schedule_name
Availability Schedule Name
reference Availability schedule name for this system. Schedule value > 0 means the system is available. If this field is blank, the system is always available.
Names a ExternalInterface:FunctionalMockupUnitExport:To:Schedule, ExternalInterface:FunctionalMockupUnitImport:To:Schedule, ExternalInterface:Schedule, Schedule:Compact, Schedule:Constant, Schedule:File, Schedule:Year, Schedule:Year:Rules
zone_or_space_name
Zone or Space Name required
reference Names a Space, Zone
water_supply_storage_tank_name
Water Supply Storage Tank Name
reference In case of stand alone tank or underground water, leave this input blank
Names a WaterUse:Storage
flow_control_type
Flow Control Type
choice WindDrivenFlow Water flow schedule should be selected when the water flow rate is known. Wind-driven flow should be selected when the water flow rate is unknown.
One of WaterFlowSchedule, WindDrivenFlow
pump_flow_rate_schedule_name
Pump Flow Rate Schedule Name required
reference Names a ExternalInterface:FunctionalMockupUnitExport:To:Schedule, ExternalInterface:FunctionalMockupUnitImport:To:Schedule, ExternalInterface:Schedule, Schedule:Compact, Schedule:Constant, Schedule:File, Schedule:Year, Schedule:Year:Rules
maximum_water_flow_rate
Maximum Water Flow Rate required
number
m3/s
effective_tower_height
Effective Tower Height required
number
m
This field is from either the spray or the wet pad to the top of the outlet.
airflow_outlet_area
Airflow Outlet Area required
number
m2
User have to specify effective area when outlet area is relatively bigger than the cross sectional area of cooltower. If the number of outlet is more than one, assume the air passes through only one.
maximum_air_flow_rate
Maximum Air Flow Rate required
number
m3/s
Range: ≥ 0
minimum_indoor_temperature
Minimum Indoor Temperature required
number
C
This field is to specify the indoor temperature below which cooltower is shutoff.
Range: ≥ -100, ≤ 100
fraction_of_water_loss
Fraction of Water Loss
number Range: ≥ 0, ≤ 1
fraction_of_flow_schedule
Fraction of Flow Schedule
number Range: ≥ 0, ≤ 1
rated_power_consumption
Rated Power Consumption required
number
W

ZoneCrossMixing

from idfpy.models import ZoneCrossMixing

ZoneCrossMixing exchanges an equal amount of air between two zones or spaces. Note that this statement affects the energy balance of both zones or spaces.

Field Type Default Details
name
Name required
string
zone_or_space_name
Zone or Space Name required
reference ZoneList and SpaceList names are not allowed.
Names a Space, Zone
schedule_name
Schedule Name
reference If blank, defaults to always 1.0
Names a ExternalInterface:FunctionalMockupUnitExport:To:Schedule, ExternalInterface:FunctionalMockupUnitImport:To:Schedule, ExternalInterface:Schedule, Schedule:Compact, Schedule:Constant, Schedule:File, Schedule:Year, Schedule:Year:Rules
design_flow_rate_calculation_method
Design Flow Rate Calculation Method
choice Flow/Zone The entered calculation method is used to create the maximum amount of ventilation for this set of attributes Choices: Flow/Zone => Design Flow Rate -- simply enter Design Flow Rate Flow/Area => Flow Rate per Zone Floor Area - Value * Floor Area (zone) = Design Flow Rate Flow/Person => Flow Rate per Person - Value * #people = Design Flow Rate AirChanges/Hour => Air Changes per Hour - Value * Floor Volume (zone) adjusted for m3/s = Design Volume Flow Rate "Vdesign" in Equation is the result.
One of AirChanges/Hour, Flow/Area, Flow/Person, Flow/Zone
design_flow_rate
Design Flow Rate
number
m3/s
Range: ≥ 0
flow_rate_per_floor_area
Flow Rate per Floor Area
number
m3/s-m2
Range: ≥ 0
flow_rate_per_person
Flow Rate per Person
number
m3/s-person
Range: ≥ 0
air_changes_per_hour
Air Changes per Hour
number
1/hr
Range: ≥ 0
source_zone_or_space_name
Source Zone or Space Name required
reference Names a Space, Zone
delta_temperature
Delta Temperature
number
deltaC
0.0 This field contains the constant temperature differential between source and receiving zone or space below which mixing is shutoff. If a source zone is specified and it contains more than one space, the average source zone temperature will be used for control. This value must be greater than or equal to zero.
Range: ≥ 0
delta_temperature_schedule_name
Delta Temperature Schedule Name
reference This schedule contains the temperature differential between source and receiving zone or space below which mixing is shutoff. If a source zone is specified and it contains more than one space, the average source zone temperature will be used for control. Schedule values must be greater than or equal to zero.
Names a ExternalInterface:FunctionalMockupUnitExport:To:Schedule, ExternalInterface:FunctionalMockupUnitImport:To:Schedule, ExternalInterface:Schedule, Schedule:Compact, Schedule:Constant, Schedule:File, Schedule:Year, Schedule:Year:Rules
minimum_receiving_temperature_schedule_name
Minimum Receiving Temperature Schedule Name
reference This schedule contains the receiving zone or space temperature versus time below which cross mixing is shutoff.
Names a ExternalInterface:FunctionalMockupUnitExport:To:Schedule, ExternalInterface:FunctionalMockupUnitImport:To:Schedule, ExternalInterface:Schedule, Schedule:Compact, Schedule:Constant, Schedule:File, Schedule:Year, Schedule:Year:Rules
maximum_receiving_temperature_schedule_name
Maximum Receiving Temperature Schedule Name
reference This schedule contains the receiving zone or space temperature versus time above which cross mixing is shutoff.
Names a ExternalInterface:FunctionalMockupUnitExport:To:Schedule, ExternalInterface:FunctionalMockupUnitImport:To:Schedule, ExternalInterface:Schedule, Schedule:Compact, Schedule:Constant, Schedule:File, Schedule:Year, Schedule:Year:Rules
minimum_source_temperature_schedule_name
Minimum Source Temperature Schedule Name
reference This schedule contains the source zone or space temperature versus time below which cross mixing is shutoff.
Names a ExternalInterface:FunctionalMockupUnitExport:To:Schedule, ExternalInterface:FunctionalMockupUnitImport:To:Schedule, ExternalInterface:Schedule, Schedule:Compact, Schedule:Constant, Schedule:File, Schedule:Year, Schedule:Year:Rules
maximum_source_temperature_schedule_name
Maximum Source Temperature Schedule Name
reference This schedule contains the source zone or space temperature versus time above which cross mixing is shutoff.
Names a ExternalInterface:FunctionalMockupUnitExport:To:Schedule, ExternalInterface:FunctionalMockupUnitImport:To:Schedule, ExternalInterface:Schedule, Schedule:Compact, Schedule:Constant, Schedule:File, Schedule:Year, Schedule:Year:Rules
minimum_outdoor_temperature_schedule_name
Minimum Outdoor Temperature Schedule Name
reference This schedule contains the outdoor temperature versus time below which cross mixing is shutoff.
Names a ExternalInterface:FunctionalMockupUnitExport:To:Schedule, ExternalInterface:FunctionalMockupUnitImport:To:Schedule, ExternalInterface:Schedule, Schedule:Compact, Schedule:Constant, Schedule:File, Schedule:Year, Schedule:Year:Rules
maximum_outdoor_temperature_schedule_name
Maximum Outdoor Temperature Schedule Name
reference This schedule contains the outdoor temperature versus time above which cross mixing is shutoff.
Names a ExternalInterface:FunctionalMockupUnitExport:To:Schedule, ExternalInterface:FunctionalMockupUnitImport:To:Schedule, ExternalInterface:Schedule, Schedule:Compact, Schedule:Constant, Schedule:File, Schedule:Year, Schedule:Year:Rules

ZoneEarthtube

from idfpy.models import ZoneEarthtube

Earth Tube is specified as a design level which is modified by a Schedule fraction, temperature difference and wind speed: Earthtube=Edesign * Fschedule * (A + B*|(Tzone-Todb)| + C*WindSpd + D * WindSpd**2)

Field Type Default Details
zone_name
Zone Name required
reference Names a Zone
schedule_name
Schedule Name required
reference Names a ExternalInterface:FunctionalMockupUnitExport:To:Schedule, ExternalInterface:FunctionalMockupUnitImport:To:Schedule, ExternalInterface:Schedule, Schedule:Compact, Schedule:Constant, Schedule:File, Schedule:Year, Schedule:Year:Rules
design_flow_rate
Design Flow Rate required
number
m3/s
"Edesign" in Equation
Range: ≥ 0
minimum_zone_temperature_when_cooling
Minimum Zone Temperature when Cooling required
number
C
this is the indoor temperature below which the earth tube is shut off
Range: ≥ -100, ≤ 100
maximum_zone_temperature_when_heating
Maximum Zone Temperature when Heating required
number
C
this is the indoor temperature above which the earth tube is shut off
Range: ≥ -100, ≤ 100
delta_temperature
Delta Temperature required
number
deltaC
This is the temperature difference between indoor and outdoor below which the earth tube is shut off
Range: ≥ 0
earthtube_type
Earthtube Type
choice Natural One of Exhaust, Intake, Natural
fan_pressure_rise
Fan Pressure Rise
number
Pa
0.0 pressure rise across the fan
Range: ≥ 0
fan_total_efficiency
Fan Total Efficiency
number 1.0 Range: > 0
pipe_radius
Pipe Radius
number
m
1.0 Range: > 0
pipe_thickness
Pipe Thickness
number
m
0.2 Range: > 0
pipe_length
Pipe Length
number
m
15.0 Range: > 0
pipe_thermal_conductivity
Pipe Thermal Conductivity
number
W/m-K
200.0 Range: > 0
pipe_depth_under_ground_surface
Pipe Depth Under Ground Surface
number
m
3.0 Range: > 0
soil_condition
Soil Condition
choice HeavyAndDamp One of HeavyAndDamp, HeavyAndDry, HeavyAndSaturated, LightAndDry
average_soil_surface_temperature
Average Soil Surface Temperature required
number
C
amplitude_of_soil_surface_temperature
Amplitude of Soil Surface Temperature required
number
deltaC
Range: ≥ 0
phase_constant_of_soil_surface_temperature
Phase Constant of Soil Surface Temperature required
number
days
Range: ≥ 0
constant_term_flow_coefficient
Constant Term Flow Coefficient
number 1.0 "A" in Equation
temperature_term_flow_coefficient
Temperature Term Flow Coefficient
number 0.0 "B" in Equation
velocity_term_flow_coefficient
Velocity Term Flow Coefficient
number 0.0 "C" in Equation
velocity_squared_term_flow_coefficient
Velocity Squared Term Flow Coefficient
number 0.0 "D" in Equation
earth_tube_model_type
Earth Tube Model Type
choice Basic One of Basic, Vertical
earth_tube_model_parameters
Earth Tube Model Parameters
reference Names a ZoneEarthtube:Parameters

ZoneEarthtube:Parameters

from idfpy.models import ZoneEarthtubeParameters

Parameters that apply to the vertical model for an earth tube

Field Type Default Details
earth_tube_model_parameters_name
Earth Tube Model Parameters Name required
string
nodes_above_earth_tube
Nodes Above Earth Tube
integer
dimensionless
5 Range: ≥ 3, ≤ 10
nodes_below_earth_tube
Nodes Below Earth Tube
integer
dimensionless
3 Range: ≥ 3, ≤ 10
earth_tube_dimensionless_boundary_above
Earth Tube Dimensionless Boundary Above
number
dimensionless
1.0 When set to 1.0, the total thickness of the solution space above the earth tube node is equal to the maximum vertical dimension above the earth tube.
Range: ≥ 0.25, ≤ 1
earth_tube_dimensionless_boundary_below
Earth Tube Dimensionless Boundary Below
number
dimensionless
0.25 When set to 1.0, the total thickness of the solution space below the earth tube node is equal to the maximum vertical dimension above the earth tube.
Range: ≥ 0.25, ≤ 1
earth_tube_solution_space_width
Earth Tube Solution Space Width
number
dimensionless
4.0 Width of the nodes in the direction parallel to the ground, multiplied by earth tube radius
Range: ≥ 3, ≤ 20
Referenced by 1 object types

ZoneEarthtube

ZoneInfiltration:DesignFlowRate

from idfpy.models import ZoneInfiltrationDesignFlowRate

Infiltration is specified as a design level which is modified by a Schedule fraction, temperature difference and wind speed: Infiltration=Idesign * FSchedule * (A + B*|(Tzone-Todb)| + C*WindSpd + D * WindSpd**2) If a ZoneList, SpaceList, or a Zone comprised of more than one Space is specified then this definition applies to all applicable spaces, and each instance will be named with the Space Name plus this Object Name.

Field Type Default Details
name
Name required
string
zone_or_zonelist_or_space_or_spacelist_name
Zone or ZoneList or Space or SpaceList Name required
reference Names a Space, SpaceList, Zone, ZoneList
schedule_name
Schedule Name
reference If blank, defaults to always 1.0
Names a ExternalInterface:FunctionalMockupUnitExport:To:Schedule, ExternalInterface:FunctionalMockupUnitImport:To:Schedule, ExternalInterface:Schedule, Schedule:Compact, Schedule:Constant, Schedule:File, Schedule:Year, Schedule:Year:Rules
design_flow_rate_calculation_method
Design Flow Rate Calculation Method
choice Flow/Zone The entered calculation method is used to create the maximum amount of infiltration for this set of attributes Choices: Flow/Zone => Design Flow Rate -- simply enter Design Flow Rate Flow/Area => Flow per Zone Floor Area - Value * Floor Area (zone) = Design Flow Rate Flow/ExteriorArea => Flow per Exterior Surface Area - Value * Exterior Surface Area (zone) = Design Flow Rate Flow/ExteriorWallArea => Flow per Exterior Surface Area - Value * Exterior Wall Surface Area (zone) = Design Flow Rate AirChanges/Hour => Air Changes per Hour - Value * Floor Volume (zone) adjusted for m3/s = Design Volume Flow Rate "Idesign" in Equation is the result.
One of AirChanges/Hour, Flow/Area, Flow/ExteriorArea, Flow/ExteriorWallArea, Flow/Zone
design_flow_rate
Design Flow Rate
number
m3/s
Range: ≥ 0
flow_rate_per_floor_area
Flow Rate per Floor Area
number
m3/s-m2
Range: ≥ 0
flow_rate_per_exterior_surface_area
Flow Rate per Exterior Surface Area
number
m3/s-m2
use key Flow/ExteriorArea for all exterior surface area use key Flow/ExteriorWallArea to include only exterior wall area
Range: ≥ 0
air_changes_per_hour
Air Changes per Hour
number
1/hr
Range: ≥ 0
constant_term_coefficient
Constant Term Coefficient
number 1.0 "A" in Equation
temperature_term_coefficient
Temperature Term Coefficient
number 0.0 "B" in Equation
velocity_term_coefficient
Velocity Term Coefficient
number 0.0 "C" in Equation
velocity_squared_term_coefficient
Velocity Squared Term Coefficient
number 0.0 "D" in Equation
density_basis
Density Basis
choice Outdoor The air density to use when converting from volume flow to mass flow.
One of Indoor, Outdoor, Standard

ZoneInfiltration:EffectiveLeakageArea

from idfpy.models import ZoneInfiltrationEffectiveLeakageArea

Infiltration is specified as effective leakage area at 4 Pa, schedule fraction, stack and wind coefficients, and is a function of temperature difference and wind speed: Infiltration=FSchedule * (AL /1000) SQRT(Cs*|(Tzone-Todb)| + Cw*WindSpd**2 ) If a Zone comprised of more than one Space is specified then this definition applies to all applicable spaces, and each instance will be named with the Space Name plus this Object Name.

Field Type Default Details
name
Name required
string
zone_or_space_name
Zone or Space Name required
reference ZoneList and SpaceList names are not allowed.
Names a Space, Zone
schedule_name
Schedule Name
reference If blank, defaults to always 1.0
Names a ExternalInterface:FunctionalMockupUnitExport:To:Schedule, ExternalInterface:FunctionalMockupUnitImport:To:Schedule, ExternalInterface:Schedule, Schedule:Compact, Schedule:Constant, Schedule:File, Schedule:Year, Schedule:Year:Rules
effective_air_leakage_area
Effective Air Leakage Area required
number
cm2
"AL" in Equation units are cm2 (square centimeters)
Range: > 0
stack_coefficient
Stack Coefficient required
number "Cs" in Equation
Range: > 0
wind_coefficient
Wind Coefficient required
number "Cw" in Equation
Range: > 0

ZoneInfiltration:FlowCoefficient

from idfpy.models import ZoneInfiltrationFlowCoefficient

Infiltration is specified as flow coefficient, schedule fraction, stack and wind coefficients, and is a function of temperature difference and wind speed: Infiltration=FSchedule * SQRT( (c * Cs*|(Tzone-Todb)|**n)**2 + (c* Cw*(s * WindSpd)**2n)**2 ) If a Zone comprised of more than one Space is specified then this definition applies to all applicable spaces, and each instance will be named with the Space Name plus this Object Name.

Field Type Default Details
name
Name required
string
zone_or_space_name
Zone or Space Name required
reference ZoneList and SpaceList names are not allowed.
Names a Space, Zone
schedule_name
Schedule Name
reference If blank, defaults to always 1.0
Names a ExternalInterface:FunctionalMockupUnitExport:To:Schedule, ExternalInterface:FunctionalMockupUnitImport:To:Schedule, ExternalInterface:Schedule, Schedule:Compact, Schedule:Constant, Schedule:File, Schedule:Year, Schedule:Year:Rules
flow_coefficient
Flow Coefficient required
number "c" in Equation
Range: > 0
stack_coefficient
Stack Coefficient required
number "Cs" in Equation
Range: > 0
pressure_exponent
Pressure Exponent
number 0.67 "n" in Equation
Range: > 0
wind_coefficient
Wind Coefficient required
number "Cw" in Equation
Range: > 0
shelter_factor
Shelter Factor required
number "s" in Equation
Range: > 0

ZoneMixing

from idfpy.models import ZoneMixing

ZoneMixing is a simple air exchange from one zone or space to another. Note that this statement only affects the energy balance of the "receiving" zone or space and will not produce any effect on the "source" zone. Mixing statements can be complementary and include multiple zones, but the balancing of flows between zones is left to the user's discretion.

Field Type Default Details
name
Name required
string
zone_or_space_name
Zone or Space Name required
reference ZoneList and SpaceList names are not allowed.
Names a Space, Zone
schedule_name
Schedule Name
reference If blank, defaults to always 1.0
Names a ExternalInterface:FunctionalMockupUnitExport:To:Schedule, ExternalInterface:FunctionalMockupUnitImport:To:Schedule, ExternalInterface:Schedule, Schedule:Compact, Schedule:Constant, Schedule:File, Schedule:Year, Schedule:Year:Rules
design_flow_rate_calculation_method
Design Flow Rate Calculation Method
choice Flow/Zone The entered calculation method is used to create the maximum amount of ventilation for this set of attributes Choices: Flow/Zone => Design Flow Rate -- simply enter Design Flow Rate Flow/Area => Flow Rate per Zone Floor Area - Value * Floor Area (zone) = Design Flow Rate Flow/Person => Flow Rate per Person - Value * #people = Design Flow Rate AirChanges/Hour => Air Changes per Hour - Value * Floor Volume (zone) adjusted for m3/s = Design Volume Flow Rate "Vdesign" in Equation is the result.
One of AirChanges/Hour, Flow/Area, Flow/Person, Flow/Zone
design_flow_rate
Design Flow Rate
number
m3/s
Range: ≥ 0
flow_rate_per_floor_area
Flow Rate per Floor Area
number
m3/s-m2
Range: ≥ 0
flow_rate_per_person
Flow Rate per Person
number
m3/s-person
Range: ≥ 0
air_changes_per_hour
Air Changes per Hour
number
1/hr
Range: ≥ 0
source_zone_or_space_name
Source Zone or Space Name required
reference Names a Space, Zone
delta_temperature
Delta Temperature
number
deltaC
0.0 This field contains the constant temperature differential between source and receiving zone or space below which mixing is shutoff. If a source zone is specified and it contains more than one space, the average source zone temperature will be used for control.
delta_temperature_schedule_name
Delta Temperature Schedule Name
reference This schedule contains the temperature differential between source and receiving zone or space below which mixing is shutoff. If a source zone is specified and it contains more than one space, the average source zone temperature will be used for control.
Names a ExternalInterface:FunctionalMockupUnitExport:To:Schedule, ExternalInterface:FunctionalMockupUnitImport:To:Schedule, ExternalInterface:Schedule, Schedule:Compact, Schedule:Constant, Schedule:File, Schedule:Year, Schedule:Year:Rules
minimum_receiving_temperature_schedule_name
Minimum Receiving Temperature Schedule Name
reference This schedule contains the receiving zone or space temperature versus time below which mixing is shutoff.
Names a ExternalInterface:FunctionalMockupUnitExport:To:Schedule, ExternalInterface:FunctionalMockupUnitImport:To:Schedule, ExternalInterface:Schedule, Schedule:Compact, Schedule:Constant, Schedule:File, Schedule:Year, Schedule:Year:Rules
maximum_receiving_temperature_schedule_name
Maximum Receiving Temperature Schedule Name
reference This schedule contains the receiving zone or space temperature versus time above which mixing is shutoff.
Names a ExternalInterface:FunctionalMockupUnitExport:To:Schedule, ExternalInterface:FunctionalMockupUnitImport:To:Schedule, ExternalInterface:Schedule, Schedule:Compact, Schedule:Constant, Schedule:File, Schedule:Year, Schedule:Year:Rules
minimum_source_temperature_schedule_name
Minimum Source Temperature Schedule Name
reference This schedule contains the source zone or space temperature versus time below which mixing is shutoff.
Names a ExternalInterface:FunctionalMockupUnitExport:To:Schedule, ExternalInterface:FunctionalMockupUnitImport:To:Schedule, ExternalInterface:Schedule, Schedule:Compact, Schedule:Constant, Schedule:File, Schedule:Year, Schedule:Year:Rules
maximum_source_temperature_schedule_name
Maximum Source Temperature Schedule Name
reference This schedule contains the source zone or space temperature versus time above which mixing is shutoff.
Names a ExternalInterface:FunctionalMockupUnitExport:To:Schedule, ExternalInterface:FunctionalMockupUnitImport:To:Schedule, ExternalInterface:Schedule, Schedule:Compact, Schedule:Constant, Schedule:File, Schedule:Year, Schedule:Year:Rules
minimum_outdoor_temperature_schedule_name
Minimum Outdoor Temperature Schedule Name
reference This schedule contains the outdoor temperature versus time below which mixing is shutoff.
Names a ExternalInterface:FunctionalMockupUnitExport:To:Schedule, ExternalInterface:FunctionalMockupUnitImport:To:Schedule, ExternalInterface:Schedule, Schedule:Compact, Schedule:Constant, Schedule:File, Schedule:Year, Schedule:Year:Rules
maximum_outdoor_temperature_schedule_name
Maximum Outdoor Temperature Schedule Name
reference This schedule contains the outdoor temperature versus time above which mixing is shutoff.
Names a ExternalInterface:FunctionalMockupUnitExport:To:Schedule, ExternalInterface:FunctionalMockupUnitImport:To:Schedule, ExternalInterface:Schedule, Schedule:Compact, Schedule:Constant, Schedule:File, Schedule:Year, Schedule:Year:Rules

ZoneRefrigerationDoorMixing

from idfpy.models import ZoneRefrigerationDoorMixing

Refrigeration Door Mixing is used for an opening between two zones (or spaces) that are at the same elevation but have different air temperatures. In this case, the mixing air flow between the two zones is determined by the density difference between the two zones. This would typically be used between two zones in a refrigerated warehouse that are controlled at different temperatures. It could also be used to model a door to a walk-in refrigerated space if that space were modeled as a zone instead of using the object Refrigeration:WalkIn.

Field Type Default Details
name
Name required
string
zone_or_space_name_1
Zone or Space Name 1 required
reference If a space name is used, it must belong to a different zone than Zone or Space Name 2.
Names a Space, Zone
zone_or_space_name_2
Zone or Space Name 2 required
reference If a space name is used, it must belong to a different zone than Zone or Space Name 1.
Names a Space, Zone
schedule_name
Schedule Name required
reference This schedule defines the fraction of the time the refrigeration door is open For example, if the warehouse is closed at night and there are no door openings between two zones, the value for that time period would be 0. If doors were propped open, the value over that time period would be 1.0 If the doors were open about 20% of the time, the value over that period would be 0.2 Schedule values must lie between 0 and 1.0
Names a ExternalInterface:FunctionalMockupUnitExport:To:Schedule, ExternalInterface:FunctionalMockupUnitImport:To:Schedule, ExternalInterface:Schedule, Schedule:Compact, Schedule:Constant, Schedule:File, Schedule:Year, Schedule:Year:Rules
door_height
Door Height
number
m
3.0 Range: ≥ 0, ≤ 50
door_area
Door Area
number
m2
9.0 Range: ≥ 0, ≤ 400
door_protection_type
Door Protection Type
choice None Door protection can reduce the air flow through a refrigeration door The default value is "None" Choices: "None", "AirCurtain", and "StripCurtain" A strip curtain reduces the air flow more than an air curtain
One of AirCurtain, None, StripCurtain

ZoneThermalChimney

from idfpy.models import ZoneThermalChimney

A thermal chimney is a vertical shaft utilizing solar radiation to enhance natural ventilation. It consists of an absorber wall, air gap and glass cover with high solar transmissivity.

Field Type Default Details
name
Name required
string
zone_name
Zone Name required
reference Name of zone that is the thermal chimney.
Names a Zone
availability_schedule_name
Availability Schedule Name
reference Availability schedule name for this system. Schedule value > 0 means the system is available. If this field is blank, the system is always available.
Names a ExternalInterface:FunctionalMockupUnitExport:To:Schedule, ExternalInterface:FunctionalMockupUnitImport:To:Schedule, ExternalInterface:Schedule, Schedule:Compact, Schedule:Constant, Schedule:File, Schedule:Year, Schedule:Year:Rules
width_of_the_absorber_wall
Width of the Absorber Wall required
number
m
Range: ≥ 0
cross_sectional_area_of_air_channel_outlet
Cross Sectional Area of Air Channel Outlet required
number
m2
Range: ≥ 0
discharge_coefficient
Discharge Coefficient
number 0.8 Range: ≥ 0, ≤ 1
zone_or_space_name_1
Zone or Space Name 1 required
reference Names a Space, Zone
distance_from_top_of_thermal_chimney_to_inlet_1
Distance from Top of Thermal Chimney to Inlet 1 required
number
m
Range: ≥ 0
relative_ratios_of_air_flow_rates_passing_through_inlet_1
Relative Ratios of Air Flow Rates Passing through Inlet 1
number 1.0 Range: ≥ 0, ≤ 1
cross_sectional_areas_of_air_channel_inlet_1
Cross Sectional Areas of Air Channel Inlet 1 required
number
m2
Range: ≥ 0
zone_or_space_name_2
Zone or Space Name 2
reference Names a Space, Zone
distance_from_top_of_thermal_chimney_to_inlet_2
Distance from Top of Thermal Chimney to Inlet 2
number
m
Range: ≥ 0
relative_ratios_of_air_flow_rates_passing_through_inlet_2
Relative Ratios of Air Flow Rates Passing through Inlet 2
number Range: ≥ 0, ≤ 1
cross_sectional_areas_of_air_channel_inlet_2
Cross Sectional Areas of Air Channel Inlet 2
number
m2
Range: ≥ 0
zone_or_space_name_3
Zone or Space Name 3
reference Names a Space, Zone
distance_from_top_of_thermal_chimney_to_inlet_3
Distance from Top of Thermal Chimney to Inlet 3
number
m
Range: ≥ 0
relative_ratios_of_air_flow_rates_passing_through_inlet_3
Relative Ratios of Air Flow Rates Passing through Inlet 3
number Range: ≥ 0, ≤ 1
cross_sectional_areas_of_air_channel_inlet_3
Cross Sectional Areas of Air Channel Inlet 3
number
m2
Range: ≥ 0
zone_or_space_name_4
Zone or Space Name 4
reference Names a Space, Zone
distance_from_top_of_thermal_chimney_to_inlet_4
Distance from Top of Thermal Chimney to Inlet 4
number
m
Range: ≥ 0
relative_ratios_of_air_flow_rates_passing_through_inlet_4
Relative Ratios of Air Flow Rates Passing through Inlet 4
number Range: ≥ 0, ≤ 1
cross_sectional_areas_of_air_channel_inlet_4
Cross Sectional Areas of Air Channel Inlet 4
number
m2
Range: ≥ 0
zone_or_space_name_5
Zone or Space Name 5
reference Names a Space, Zone
distance_from_top_of_thermal_chimney_to_inlet_5
Distance from Top of Thermal Chimney to Inlet 5
number
m
Range: ≥ 0
relative_ratios_of_air_flow_rates_passing_through_inlet_5
Relative Ratios of Air Flow Rates Passing through Inlet 5
number Range: ≥ 0, ≤ 1
cross_sectional_areas_of_air_channel_inlet_5
Cross Sectional Areas of Air Channel Inlet 5
number
m2
Range: ≥ 0
zone_or_space_name_6
Zone or Space Name 6
reference Names a Space, Zone
distance_from_top_of_thermal_chimney_to_inlet_6
Distance from Top of Thermal Chimney to Inlet 6
number
m
Range: ≥ 0
relative_ratios_of_air_flow_rates_passing_through_inlet_6
Relative Ratios of Air Flow Rates Passing through Inlet 6
number Range: ≥ 0, ≤ 1
cross_sectional_areas_of_air_channel_inlet_6
Cross Sectional Areas of Air Channel Inlet 6
number
m2
Range: ≥ 0
zone_or_space_name_7
Zone or Space Name 7
reference Names a Space, Zone
distance_from_top_of_thermal_chimney_to_inlet_7
Distance from Top of Thermal Chimney to Inlet 7
number
m
Range: ≥ 0
relative_ratios_of_air_flow_rates_passing_through_inlet_7
Relative Ratios of Air Flow Rates Passing through Inlet 7
number Range: ≥ 0, ≤ 1
cross_sectional_areas_of_air_channel_inlet_7
Cross Sectional Areas of Air Channel Inlet 7
number
m2
Range: ≥ 0
zone_or_space_name_8
Zone or Space Name 8
reference Names a Space, Zone
distance_from_top_of_thermal_chimney_to_inlet_8
Distance from Top of Thermal Chimney to Inlet 8
number
m
Range: ≥ 0
relative_ratios_of_air_flow_rates_passing_through_inlet_8
Relative Ratios of Air Flow Rates Passing through Inlet 8
number Range: ≥ 0, ≤ 1
cross_sectional_areas_of_air_channel_inlet_8
Cross Sectional Areas of Air Channel Inlet 8
number
m2
Range: ≥ 0
zone_or_space_name_9
Zone or Space Name 9
reference Names a Space, Zone
distance_from_top_of_thermal_chimney_to_inlet_9
Distance from Top of Thermal Chimney to Inlet 9
number
m
Range: ≥ 0
relative_ratios_of_air_flow_rates_passing_through_inlet_9
Relative Ratios of Air Flow Rates Passing through Inlet 9
number Range: ≥ 0, ≤ 1
cross_sectional_areas_of_air_channel_inlet_9
Cross Sectional Areas of Air Channel Inlet 9
number
m2
Range: ≥ 0
zone_or_space_name_10
Zone or Space Name 10
reference Names a Space, Zone
distance_from_top_of_thermal_chimney_to_inlet_10
Distance from Top of Thermal Chimney to Inlet 10
number
m
Range: ≥ 0
relative_ratios_of_air_flow_rates_passing_through_inlet_10
Relative Ratios of Air Flow Rates Passing through Inlet 10
number Range: ≥ 0, ≤ 1
cross_sectional_areas_of_air_channel_inlet_10
Cross Sectional Areas of Air Channel Inlet 10
number
m2
Range: ≥ 0
zone_or_space_name_11
Zone or Space Name 11
reference Names a Space, Zone
distance_from_top_of_thermal_chimney_to_inlet_11
Distance from Top of Thermal Chimney to Inlet 11
number
m
Range: ≥ 0
relative_ratios_of_air_flow_rates_passing_through_inlet_11
Relative Ratios of Air Flow Rates Passing through Inlet 11
number Range: ≥ 0, ≤ 1
cross_sectional_areas_of_air_channel_inlet_11
Cross Sectional Areas of Air Channel Inlet 11
number
m2
Range: ≥ 0
zone_or_space_name_12
Zone or Space Name 12
reference Names a Space, Zone
distance_from_top_of_thermal_chimney_to_inlet_12
Distance from Top of Thermal Chimney to Inlet 12
number
m
Range: ≥ 0
relative_ratios_of_air_flow_rates_passing_through_inlet_12
Relative Ratios of Air Flow Rates Passing through Inlet 12
number Range: ≥ 0, ≤ 1
cross_sectional_areas_of_air_channel_inlet_12
Cross Sectional Areas of Air Channel Inlet 12
number
m2
Range: ≥ 0
zone_or_space_name_13
Zone or Space Name 13
reference Names a Space, Zone
distance_from_top_of_thermal_chimney_to_inlet_13
Distance from Top of Thermal Chimney to Inlet 13
number
m
Range: ≥ 0
relative_ratios_of_air_flow_rates_passing_through_inlet_13
Relative Ratios of Air Flow Rates Passing through Inlet 13
number Range: ≥ 0, ≤ 1
cross_sectional_areas_of_air_channel_inlet_13
Cross Sectional Areas of Air Channel Inlet 13
number
m2
Range: ≥ 0
zone_or_space_name_14
Zone or Space Name 14
reference Names a Space, Zone
distance_from_top_of_thermal_chimney_to_inlet_14
Distance from Top of Thermal Chimney to Inlet 14
number
m
Range: ≥ 0
relative_ratios_of_air_flow_rates_passing_through_inlet_14
Relative Ratios of Air Flow Rates Passing through Inlet 14
number Range: ≥ 0, ≤ 1
cross_sectional_areas_of_air_channel_inlet_14
Cross Sectional Areas of Air Channel Inlet 14
number
m2
Range: ≥ 0
zone_or_space_name_15
Zone or Space Name 15
reference Names a Space, Zone
distance_from_top_of_thermal_chimney_to_inlet_15
Distance from Top of Thermal Chimney to Inlet 15
number
m
Range: ≥ 0
relative_ratios_of_air_flow_rates_passing_through_inlet_15
Relative Ratios of Air Flow Rates Passing through Inlet 15
number Range: ≥ 0, ≤ 1
cross_sectional_areas_of_air_channel_inlet_15
Cross Sectional Areas of Air Channel Inlet 15
number
m2
Range: ≥ 0
zone_or_space_name_16
Zone or Space Name 16
reference Names a Space, Zone
distance_from_top_of_thermal_chimney_to_inlet_16
Distance from Top of Thermal Chimney to Inlet 16
number
m
Range: ≥ 0
relative_ratios_of_air_flow_rates_passing_through_inlet_16
Relative Ratios of Air Flow Rates Passing through Inlet 16
number Range: ≥ 0, ≤ 1
cross_sectional_areas_of_air_channel_inlet_16
Cross Sectional Areas of Air Channel Inlet 16
number
m2
Range: ≥ 0
zone_or_space_name_17
Zone or Space Name 17
reference Names a Space, Zone
distance_from_top_of_thermal_chimney_to_inlet_17
Distance from Top of Thermal Chimney to Inlet 17
number
m
Range: ≥ 0
relative_ratios_of_air_flow_rates_passing_through_inlet_17
Relative Ratios of Air Flow Rates Passing through Inlet 17
number Range: ≥ 0, ≤ 1
cross_sectional_areas_of_air_channel_inlet_17
Cross Sectional Areas of Air Channel Inlet 17
number
m2
Range: ≥ 0
zone_or_space_name_18
Zone or Space Name 18
reference Names a Space, Zone
distance_from_top_of_thermal_chimney_to_inlet_18
Distance from Top of Thermal Chimney to Inlet 18
number
m
Range: ≥ 0
relative_ratios_of_air_flow_rates_passing_through_inlet_18
Relative Ratios of Air Flow Rates Passing through Inlet 18
number Range: ≥ 0, ≤ 1
cross_sectional_areas_of_air_channel_inlet_18
Cross Sectional Areas of Air Channel Inlet 18
number
m2
Range: ≥ 0
zone_or_space_name_19
Zone or Space Name 19
reference Names a Space, Zone
distance_from_top_of_thermal_chimney_to_inlet_19
Distance from Top of Thermal Chimney to Inlet 19
number
m
Range: ≥ 0
relative_ratios_of_air_flow_rates_passing_through_inlet_19
Relative Ratios of Air Flow Rates Passing through Inlet 19
number Range: ≥ 0, ≤ 1
cross_sectional_areas_of_air_channel_inlet_19
Cross Sectional Areas of Air Channel Inlet 19
number
m2
Range: ≥ 0
zone_or_space_name_20
Zone or Space Name 20
reference Names a Space, Zone
distance_from_top_of_thermal_chimney_to_inlet_20
Distance from Top of Thermal Chimney to Inlet 20
number
m
Range: ≥ 0
relative_ratios_of_air_flow_rates_passing_through_inlet_20
Relative Ratios of Air Flow Rates Passing through Inlet 20
number Range: ≥ 0, ≤ 1
cross_sectional_areas_of_air_channel_inlet_20
Cross Sectional Areas of Air Channel Inlet 20
number
m2
Range: ≥ 0

ZoneVentilation:DesignFlowRate

from idfpy.models import ZoneVentilationDesignFlowRate

Ventilation is specified as a design level which is modified by a schedule fraction, temperature difference and wind speed: Ventilation=Vdesign * Fschedule * (A + B*|(Tzone-Todb)| + C*WindSpd + D * WindSpd**2) If a ZoneList, SpaceList, or a Zone comprised of more than one Space is specified then this definition applies to all applicable spaces, and each instance will be named with the Space Name plus this Object Name.

Field Type Default Details
name
Name required
string
zone_or_zonelist_or_space_or_spacelist_name
Zone or ZoneList or Space or SpaceList Name required
reference Names a Space, SpaceList, Zone, ZoneList
schedule_name
Schedule Name
reference If blank, defaults to always 1.0
Names a ExternalInterface:FunctionalMockupUnitExport:To:Schedule, ExternalInterface:FunctionalMockupUnitImport:To:Schedule, ExternalInterface:Schedule, Schedule:Compact, Schedule:Constant, Schedule:File, Schedule:Year, Schedule:Year:Rules
design_flow_rate_calculation_method
Design Flow Rate Calculation Method
choice Flow/Zone The entered calculation method is used to create the maximum amount of ventilation for this set of attributes Choices: Flow/Zone => Design Flow Rate -- simply enter Design Flow Rate Flow/Area => Flow Rate per Zone Floor Area - Value * Floor Area (zone) = Design Flow Rate Flow/Person => Flow Rate per Person - Value * #people = Design Flow Rate AirChanges/Hour => Air Changes per Hour - Value * Floor Volume (zone) adjusted for m3/s = Design Volume Flow Rate "Vdesign" in Equation is the result.
One of AirChanges/Hour, Flow/Area, Flow/Person, Flow/Zone
design_flow_rate
Design Flow Rate
number
m3/s
Range: ≥ 0
flow_rate_per_floor_area
Flow Rate per Floor Area
number
m3/s-m2
Range: ≥ 0
flow_rate_per_person
Flow Rate per Person
number
m3/s-person
Range: ≥ 0
air_changes_per_hour
Air Changes per Hour
number
1/hr
Range: ≥ 0
ventilation_type
Ventilation Type
choice Natural One of Balanced, Exhaust, Intake, Natural
fan_pressure_rise
Fan Pressure Rise
number
Pa
0.0 pressure rise across the fan
Range: ≥ 0
fan_total_efficiency
Fan Total Efficiency
number 1.0 Range: > 0
constant_term_coefficient
Constant Term Coefficient
number 1.0 "A" in Equation
temperature_term_coefficient
Temperature Term Coefficient
number 0.0 "B" in Equation
velocity_term_coefficient
Velocity Term Coefficient
number 0.0 "C" in Equation
velocity_squared_term_coefficient
Velocity Squared Term Coefficient
number 0.0 "D" in Equation
minimum_indoor_temperature
Minimum Indoor Temperature
number
C
-100.0 this is the indoor temperature below which ventilation is shutoff
Range: ≥ -100, ≤ 100
minimum_indoor_temperature_schedule_name
Minimum Indoor Temperature Schedule Name
reference This schedule contains the indoor temperature versus time below which ventilation is shutoff.
Names a ExternalInterface:FunctionalMockupUnitExport:To:Schedule, ExternalInterface:FunctionalMockupUnitImport:To:Schedule, ExternalInterface:Schedule, Schedule:Compact, Schedule:Constant, Schedule:File, Schedule:Year, Schedule:Year:Rules
maximum_indoor_temperature
Maximum Indoor Temperature
number
C
100.0 this is the indoor temperature above which ventilation is shutoff
Range: ≥ -100, ≤ 100
maximum_indoor_temperature_schedule_name
Maximum Indoor Temperature Schedule Name
reference This schedule contains the indoor temperature versus time above which ventilation is shutoff.
Names a ExternalInterface:FunctionalMockupUnitExport:To:Schedule, ExternalInterface:FunctionalMockupUnitImport:To:Schedule, ExternalInterface:Schedule, Schedule:Compact, Schedule:Constant, Schedule:File, Schedule:Year, Schedule:Year:Rules
delta_temperature
Delta Temperature
number
deltaC
-100.0 This is the temperature differential between indoor and outdoor below which ventilation is shutoff. If ((IndoorTemp - OutdoorTemp) < DeltaTemperature) then ventilation is not allowed. For example, if delta temperature is 2C, ventilation is assumed to be available if the outside air temperature is at least 2C cooler than the zone air temperature. The values for this field can include negative numbers. This allows ventilation to occur even if the outdoor temperature is above the indoor temperature.
Range: ≥ -100
delta_temperature_schedule_name
Delta Temperature Schedule Name
reference This schedule contains the temperature differential between indoor and outdoor versus time below which ventilation is shutoff.
Names a ExternalInterface:FunctionalMockupUnitExport:To:Schedule, ExternalInterface:FunctionalMockupUnitImport:To:Schedule, ExternalInterface:Schedule, Schedule:Compact, Schedule:Constant, Schedule:File, Schedule:Year, Schedule:Year:Rules
minimum_outdoor_temperature
Minimum Outdoor Temperature
number
C
-100.0 this is the outdoor temperature below which ventilation is shutoff
Range: ≥ -100, ≤ 100
minimum_outdoor_temperature_schedule_name
Minimum Outdoor Temperature Schedule Name
reference This schedule contains the outdoor temperature versus time below which ventilation is shutoff.
Names a ExternalInterface:FunctionalMockupUnitExport:To:Schedule, ExternalInterface:FunctionalMockupUnitImport:To:Schedule, ExternalInterface:Schedule, Schedule:Compact, Schedule:Constant, Schedule:File, Schedule:Year, Schedule:Year:Rules
maximum_outdoor_temperature
Maximum Outdoor Temperature
number
C
100.0 this is the outdoor temperature above which ventilation is shutoff
Range: ≥ -100, ≤ 100
maximum_outdoor_temperature_schedule_name
Maximum Outdoor Temperature Schedule Name
reference This schedule contains the outdoor temperature versus time above which ventilation is shutoff.
Names a ExternalInterface:FunctionalMockupUnitExport:To:Schedule, ExternalInterface:FunctionalMockupUnitImport:To:Schedule, ExternalInterface:Schedule, Schedule:Compact, Schedule:Constant, Schedule:File, Schedule:Year, Schedule:Year:Rules
maximum_wind_speed
Maximum Wind Speed
number
m/s
40.0 this is the outdoor wind speed above which ventilation is shutoff
Range: ≥ 0, ≤ 40
density_basis
Density Basis
choice Outdoor The air density to use when converting from volume flow to mass flow.
One of Indoor, Outdoor, Standard
Referenced by 1 object types

AvailabilityManager:HybridVentilation

ZoneVentilation:WindandStackOpenArea

from idfpy.models import ZoneVentilationWindandStackOpenArea

This object is specified as natural ventilation driven by wind and stack effect only: Ventilation Wind = Cw * Opening Area * Schedule * WindSpd Ventilation Stack = Cd * Opening Area * Schedule * SQRT(2*g*DH*(|(Tzone-Todb)|/Tzone)) Total Ventilation = SQRT((Ventilation Wind)^2 + (Ventilation Stack)^2) If a Zone comprised of more than one Space is specified then this definition applies to all applicable spaces, and each instance will be named with the Space Name plus this Object Name.

Field Type Default Details
name
Name required
string
zone_or_space_name
Zone or Space Name required
reference ZoneList and SpaceList names are not allowed.
Names a Space, Zone
opening_area
Opening Area
number
m2
0.0 This is the opening area used to calculate stack effect and wind driven ventilation.
Range: ≥ 0
opening_area_fraction_schedule_name
Opening Area Fraction Schedule Name
reference This schedule contains the fraction values applied to the opening area given in the previous input field (0.0 - 1.0). If blank, defaults to always 1.0
Names a ExternalInterface:FunctionalMockupUnitExport:To:Schedule, ExternalInterface:FunctionalMockupUnitImport:To:Schedule, ExternalInterface:Schedule, Schedule:Compact, Schedule:Constant, Schedule:File, Schedule:Year, Schedule:Year:Rules
opening_effectiveness
Opening Effectiveness
number or Autocalculate
dimensionless
Autocalculate This field is used to calculate wind driven ventilation. "Cw" in the wind-driven equation and the maximum value is 1.0. When the input is Autocalculate, the program calculates Cw based on an angle between wind direction and effective angle Cw = 0.55 at angle = 0, and Cw = 0.3 at angle=180 Linear interpolation is used to calculate Cw based on the above two values.
effective_angle
Effective Angle
number
deg
0.0 This field is defined as normal angle of the opening area and is used when input field Opening Effectiveness = Autocalculate.
Range: ≥ 0, < 360
height_difference
Height Difference
number
m
0.0 This is the height difference between the midpoint of an opening and the neutral pressure level. "DH" in the stack equation.
Range: ≥ 0
discharge_coefficient_for_opening
Discharge Coefficient for Opening
number or Autocalculate Autocalculate This is the discharge coefficient used to calculate stack effect. "Cd" in the stack equation and the maximum value is 1.0. When the input is Autocalculate, the following equation is used to calculate the coefficient: Cd = 0.4 + 0.0045*|(Tzone-Todb)|
minimum_indoor_temperature
Minimum Indoor Temperature
number
C
-100.0 This is the indoor temperature below which ventilation is shutoff.
Range: ≥ -100, ≤ 100
minimum_indoor_temperature_schedule_name
Minimum Indoor Temperature Schedule Name
reference This schedule contains the indoor temperature versus time below which ventilation is shutoff.
Names a ExternalInterface:FunctionalMockupUnitExport:To:Schedule, ExternalInterface:FunctionalMockupUnitImport:To:Schedule, ExternalInterface:Schedule, Schedule:Compact, Schedule:Constant, Schedule:File, Schedule:Year, Schedule:Year:Rules
maximum_indoor_temperature
Maximum Indoor Temperature
number
C
100.0 This is the indoor temperature above which ventilation is shutoff.
Range: ≥ -100, ≤ 100
maximum_indoor_temperature_schedule_name
Maximum Indoor Temperature Schedule Name
reference This schedule contains the indoor temperature versus time above which ventilation is shutoff.
Names a ExternalInterface:FunctionalMockupUnitExport:To:Schedule, ExternalInterface:FunctionalMockupUnitImport:To:Schedule, ExternalInterface:Schedule, Schedule:Compact, Schedule:Constant, Schedule:File, Schedule:Year, Schedule:Year:Rules
delta_temperature
Delta Temperature
number
deltaC
-100.0 This is the temperature differential between indoor and outdoor below which ventilation is shutoff.
Range: ≥ -100
delta_temperature_schedule_name
Delta Temperature Schedule Name
reference This schedule contains the temperature differential between indoor and outdoor versus time below which ventilation is shutoff.
Names a ExternalInterface:FunctionalMockupUnitExport:To:Schedule, ExternalInterface:FunctionalMockupUnitImport:To:Schedule, ExternalInterface:Schedule, Schedule:Compact, Schedule:Constant, Schedule:File, Schedule:Year, Schedule:Year:Rules
minimum_outdoor_temperature
Minimum Outdoor Temperature
number
C
-100.0 This is the outdoor temperature below which ventilation is shutoff.
Range: ≥ -100, ≤ 100
minimum_outdoor_temperature_schedule_name
Minimum Outdoor Temperature Schedule Name
reference This schedule contains the outdoor temperature versus time below which ventilation is shutoff.
Names a ExternalInterface:FunctionalMockupUnitExport:To:Schedule, ExternalInterface:FunctionalMockupUnitImport:To:Schedule, ExternalInterface:Schedule, Schedule:Compact, Schedule:Constant, Schedule:File, Schedule:Year, Schedule:Year:Rules
maximum_outdoor_temperature
Maximum Outdoor Temperature
number
C
100.0 This is the outdoor temperature above which ventilation is shutoff.
Range: ≥ -100, ≤ 100
maximum_outdoor_temperature_schedule_name
Maximum Outdoor Temperature Schedule Name
reference This schedule contains the outdoor temperature versus time above which ventilation is shutoff.
Names a ExternalInterface:FunctionalMockupUnitExport:To:Schedule, ExternalInterface:FunctionalMockupUnitImport:To:Schedule, ExternalInterface:Schedule, Schedule:Compact, Schedule:Constant, Schedule:File, Schedule:Year, Schedule:Year:Rules
maximum_wind_speed
Maximum Wind Speed
number
m/s
40.0 This is the outdoor wind speed above which ventilation is shutoff.
Range: ≥ 0, ≤ 40
Referenced by 1 object types

AvailabilityManager:HybridVentilation