Group – Humidifiers[LINK]
Humidifier:Steam:Electric[LINK]
The electric steam humidifier is a component that
represents an electrically heated, self contained steam
humidifier. The component uses electrical energy to convert
ordinary tap water to steam which it then injects into the
supply air stream by means of a blower fan. The actual unit
might be an electrode-type humidifier or a resistance-type
humidifier.
The humidifier model includes local control of the
humidifier unit to meet a humidity ratio setpoint on its air
outlet node. A set point manager is needed to put a setpoint
on the exit node but no other local controllers are needed.
The humidifier will add moisture to meet the humidity ratio
setpoint.
A unique user assigned name for a particular humidifier
unit. Any reference to this unit by another object will use
this name.
Field: Availability
Schedule Name[LINK]
The name of the schedule (ref: Schedule) that denotes
whether the unit can run during a given time period. A
schedule value of 0 indicates that the unit is off for that
time period. A schedule value greater than 0 indicates that
the unit can operate during the time period. If this field is
blank, the schedule has values of 1 for all time periods.
Field: Rated Capacity[LINK]
The nominal full output water addition rate of the unit in
m3/sec of water at 5.05 C.
Field: Rated Power[LINK]
The nominal full output power consumption of the unit in
watts, exclusive of the blower fan power consumption and any
standby power. This field can be autosized. When it is
autosized, its calculated from the rated capacity in kg/s and
the enthalpy rise in J/kg of the feed water from the a
reference temperature of liquid water at 20°C to a saturated
steam at 100°C.
Field: Rated Fan Power[LINK]
The nominal full output power consumption of the blower fan
in watts.
Field: Standby Power[LINK]
The standby power consumption in watts. This amount of
power will be consumed whenever the unit is available (as
defined by the availability schedule).
Field: Air Inlet Node
Name[LINK]
The name of the HVAC system node from which the unit draws
inlet air.
Field: Air Outlet Node
Name[LINK]
The name of the HVAC system node to which the unit sends
its outlet air.
Field: Water Storage
Tank Name[LINK]
This field is optional. If left blank or omitted, then the
humidifier obtains its water directly from the mains water. If
the name of a Water Storage Tank is specified, then the
humidifier will try to obtain its water from that tank. If the
tank can’t provide all the water then the rest will be drawn
from the mains and the humidifier will still operate.
An IDF example:
Humidifier:Steam:Electric,
Humidifier 1, !- Name
FanAndCoilAvailSched, !- Availability Schedule Name
0.00000379, !- Rated Capacity {m3/s}
10200., !- Rated Power {W}
27., !- Rated Fan Power {W}
2., !- Standby Power {W}
Cooling Coil Air Outlet Node, !- Air Inlet Node Name
Air Loop Outlet Node; !- Air Outlet Node Name
Steam Electric
Humidfier Outputs[LINK]
HVAC,Average,Humidifier Water Volume Flow Rate [m3/s]HVAC,Sum,Humidifier Water Volume[m3]
HVAC,Average,Humidifier Electric Power[W]
HVAC,Sum,Humidifier Electric Energy [J]
Zone,Meter,Humidifier:Water [m3]Zone,Meter,Humidifier:Electricity [J]
HVAC,Average,Humidifier Storage Tank Water Volume Flow Rate [m3/s]
HVAC,Sum,Humidifier Storage Tank Water Volume [m3]
HVAC,Average,Humidifier Starved Storage Tank Water Volume Flow Rate [m3/s]
HVAC,Sum,Humidifier Starved Storage Tank Water Volume [m3]
Zone,Meter,Humidifier:MainsWater [m3]
HVAC,Sum,Humidifier Mains Water Volume [m3]
Humidifier
Water Volume Flow Rate [m3/s][LINK]
This field reports the water consumption rate of the steam
humidifier in cubic meters of water per second.
Humidifier Water
Volume[m3][LINK]
This ouput is the cubic meters of water consumed by the
steam humidifier over the timestep being reported.
Humidifier Electric
Power[W][LINK]
This output is the electricity consumption rate in Watts of
the steam humidifier.
Humidifier Electric
Energy [J][LINK]
This is the electricity consumption in Joules of the steam
humidifier over the timestep being reported.
Humidifier:Water [m3][LINK]
This meter output contains the sum of the water consumed
(in cubic neters of water during the report timestep) by all
the steam humidifiers at the HVAC level in the simulation.
Humidifier:Electricity
[J][LINK]
This meter output contains the sum of the electricity
consumed (in Joules during the report timestep) by all the
steam humidifiers at the HVAC level in the simulation.
Humidifier
Storage Tank Water Volume Flow Rate [m3/s][LINK]
Humidifier
Storage Tank Water Volume [m3][LINK]
These outputs contain the rate and volume of water obtained
from water storage tank. These are only present if the
humidifier is connected to a Water Storage Tank for its water
supply.
Humidifier
Starved Storage Tank Water Volume Flow Rate [m3/s][LINK]
Humidifier
Starved Storage Tank Water Volume [m3][LINK]
These outputs contain the rate and volume of water that
could not be obtained from the water storage tank. The
component will still operate as if it did get all the water
with the balance obtained directly from the mains
Humidifier Mains
Water Volume [m3][LINK]
This output contains the volume of water obtained from the
mains.
Group – Humidifiers[LINK]
Humidifier:Steam:Electric[LINK]
The electric steam humidifier is a component that represents an electrically heated, self contained steam humidifier. The component uses electrical energy to convert ordinary tap water to steam which it then injects into the supply air stream by means of a blower fan. The actual unit might be an electrode-type humidifier or a resistance-type humidifier.
The humidifier model includes local control of the humidifier unit to meet a humidity ratio setpoint on its air outlet node. A set point manager is needed to put a setpoint on the exit node but no other local controllers are needed. The humidifier will add moisture to meet the humidity ratio setpoint.
Field: Name[LINK]
A unique user assigned name for a particular humidifier unit. Any reference to this unit by another object will use this name.
Field: Availability Schedule Name[LINK]
The name of the schedule (ref: Schedule) that denotes whether the unit can run during a given time period. A schedule value of 0 indicates that the unit is off for that time period. A schedule value greater than 0 indicates that the unit can operate during the time period. If this field is blank, the schedule has values of 1 for all time periods.
Field: Rated Capacity[LINK]
The nominal full output water addition rate of the unit in m3/sec of water at 5.05 C.
Field: Rated Power[LINK]
The nominal full output power consumption of the unit in watts, exclusive of the blower fan power consumption and any standby power. This field can be autosized. When it is autosized, its calculated from the rated capacity in kg/s and the enthalpy rise in J/kg of the feed water from the a reference temperature of liquid water at 20°C to a saturated steam at 100°C.
Field: Rated Fan Power[LINK]
The nominal full output power consumption of the blower fan in watts.
Field: Standby Power[LINK]
The standby power consumption in watts. This amount of power will be consumed whenever the unit is available (as defined by the availability schedule).
Field: Air Inlet Node Name[LINK]
The name of the HVAC system node from which the unit draws inlet air.
Field: Air Outlet Node Name[LINK]
The name of the HVAC system node to which the unit sends its outlet air.
Field: Water Storage Tank Name[LINK]
This field is optional. If left blank or omitted, then the humidifier obtains its water directly from the mains water. If the name of a Water Storage Tank is specified, then the humidifier will try to obtain its water from that tank. If the tank can’t provide all the water then the rest will be drawn from the mains and the humidifier will still operate.
An IDF example:
Steam Electric Humidfier Outputs[LINK]
Humidifier Water Volume Flow Rate [m3/s][LINK]
This field reports the water consumption rate of the steam humidifier in cubic meters of water per second.
Humidifier Water Volume[m3][LINK]
This ouput is the cubic meters of water consumed by the steam humidifier over the timestep being reported.
Humidifier Electric Power[W][LINK]
This output is the electricity consumption rate in Watts of the steam humidifier.
Humidifier Electric Energy [J][LINK]
This is the electricity consumption in Joules of the steam humidifier over the timestep being reported.
Humidifier:Water [m3][LINK]
This meter output contains the sum of the water consumed (in cubic neters of water during the report timestep) by all the steam humidifiers at the HVAC level in the simulation.
Humidifier:Electricity [J][LINK]
This meter output contains the sum of the electricity consumed (in Joules during the report timestep) by all the steam humidifiers at the HVAC level in the simulation.
Humidifier Storage Tank Water Volume Flow Rate [m3/s][LINK]
Humidifier Storage Tank Water Volume [m3][LINK]
These outputs contain the rate and volume of water obtained from water storage tank. These are only present if the humidifier is connected to a Water Storage Tank for its water supply.
Humidifier Starved Storage Tank Water Volume Flow Rate [m3/s][LINK]
Humidifier Starved Storage Tank Water Volume [m3][LINK]
These outputs contain the rate and volume of water that could not be obtained from the water storage tank. The component will still operate as if it did get all the water with the balance obtained directly from the mains
Humidifier Mains Water Volume [m3][LINK]
This output contains the volume of water obtained from the mains.
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This documentation is made available under the EnergyPlus Open Source License v1.0.