Humidifier:Steam:Electric
Used in:
- Air Handling Units
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Used in:
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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.
Note: To ensure that the humidifier will add moisture to meet the humidity ratio setpoint, a Minimum humidity Setpoint manager must be added immediately downstream of the Humidifier (4-Multi-zone minimum humidity average or 6-Multi-zone humidity minimum or 8-Single zone humidity minimum).
More information on controlling humidity is available in the Humidity control section.
A unique system assigned name for a particular humidifier unit. Any reference to this unit by another object will use this name.
The nominal full output water addition rate of the unit (in m3/sec or gal/min of water at 5.05°C).
Note: The Rated capacity cannot be autosized in current versions of EnergyPlus, but if you are not sure of the correct value to use, it is possible to enter a very high value (e.g. 1m3/s) to ensure that humidification loads can always be met.
The nominal full output power consumption of the unit (in W), exclusive of the blower fan power consumption and any standby power. This field can be autosized. When it is autosized, the calculations are based on the rated capacity and the enthalpy rise of the feed water from the reference temperature of liquid water at 20°C to a saturated steam at 100°C.
The nominal full output power consumption of the blower fan (in W).
The standby power consumption (in W). This amount of power will be consumed whenever the unit is available (as defined by the availability schedule).
Schedule that defines whether the unit can run during a given time period. A schedule value greater than 0 (usually 1 is used) indicates that the fan can be on during a given time period. A value less than or equal to 0 (usually 0 is used) denotes that the unit is off.
HVAC,Average,Humidifier Water Consumption Rate[m3/s]
HVAC,Sum,Humidifier Water Consumption[m3]
HVAC,Average,Humidifier Electric Power[W]
HVAC,Sum,Humidifier Electric Consumption[J]
Zone,Meter,Humidifier:Water [m3]
Zone,Meter,Humidifier:Electricity [J]
HVAC,Average,Humidifier Water From Storage Tank Rate [m3/s]
HVAC,Sum,Humidifier Water From Storage Tank [m3]
HVAC,Average,Humidifier Water Starved By Storage Tank Rate [m3/s]
HVAC,Sum,Humidifier Water Starved By Storage Tank [m3]
Zone,Meter,Humidifier:MainsWater [m3]
HVAC,Sum,Humidifier Water Mains Draw [m3]
This field reports the water consumption rate of the steam humidifier in cubic meters of water per second.
This ouput is the cubic meters of water consumed by the steam humidifier over the timestep being reported.
This output is the electricity consumption rate in Watts of the steam humidifier.
This is the electricity consumption in Joules of the steam humidifier over the timestep being reported.
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.
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.
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.
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
This output contains the volume of water obtained from the mains.