Merge pull request #4740 from NREL/GasHumidifier

Humidifier changes. Red CI results are all audit and rdd diffs. Good to go.
NREL · Mar 3, 2015 · 9999b3b · 9999b3b
2 parents 9bb0999 + beefd68
commit 9999b3b
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diff --git a/idd/Energy+.idd.in b/idd/Energy+.idd.in
@@ -48158,6 +48158,97 @@ Humidifier:Steam:Electric,
       \type object-list
       \object-list WaterStorageTankNames
 
+Humidifier:Steam:Gas,
+      \memo Natural gas fired steam humidifier with optional blower fan.
+  A1, \field Name
+      \required-field
+  A2, \field Availability Schedule Name
+      \note Availability schedule name for this system. Schedule value > 0 means the system is available.
+      \note If this field is blank, the system is always available.
+      \type object-list
+      \object-list ScheduleNames
+  N1, \field Rated Capacity
+      \note Capacity is m3/s of water at 5.05 C
+      \type real
+      \units m3/s
+      \minimum 0.0
+      \ip-units gal/min
+      \autosizable
+      \note The nominal full capacity water addition rate in m3/s of water at 5.05 C
+  N2, \field Rated Gas Use Rate
+      \type real
+      \units W
+      \minimum 0.0
+      \ip-units W
+      \autosizable
+      \note if auto-sized, the rated gas use rate is calculated from the rated 
+      \note capacity and enthalpy rise of water from 20.0C to 100.0C steam and user
+      \note input thermal efficiency value specified in the next input field. If this 
+      \note input field is hard-sized and Inlet Water Temperature Option input field is 
+      \note selected as FixedInletWaterTemperature, then the thermal efficiency input       
+      \note field will not be used or else if the Inlet Water Temperature Option input 
+      \note field is selected as VariableInletWaterTemperature, then the thermal efficiency 
+      \note input value is overridden by a value calculated from the capacity, rated gas use 
+      \note rate and design condition.
+  N3, \field Thermal Efficiency
+      \type real
+      \units dimensionless
+      \minimum> 0.0
+      \maximum 1.0
+      \default 0.80   
+      \note Based on the higher heating value of fuel.
+      \note If "Rated Gas Use Rate" in the field above is not auto-sized and the Inlet Water 
+      \note Temperature Option input field is specified as FixedInletWaterTemperature, then the 
+      \note thermal efficiency specified will not be used in the calculation, or else if the 
+      \note Inlet Water Temperature Option input field is selected as VariableInletWaterTemperature, 
+      \note then the thermal efficiency value is overridden by a value calculated from the capacity, 
+      \note rated gas use rate and design condition.
+  A3, \field Thermal Efficiency Modifier Curve Name
+      \type object-list
+      \object-list UniVariateCurves
+      \note Linear, Quadratic and Cubic efficiency curves are solely a function of PLR.
+      \note Linear = C1 + C2*PLR
+      \note Quadratic = C1 + C2*PLR + C3*PLR^2
+      \note Cubic = C1 + C2*PLR + C3*PLR^2 + C4*PLR^3
+      \note This is thermal efficiency modifier curve name of gas fired steam humidifier.
+      \note This curve is normalized, i.e., curve output value at rated condition is 1.0. 
+  N4, \field Rated Fan Power
+      \type real
+      \units W
+      \minimum 0.0
+      \ip-units W
+      \note The nominal full capacity electric power input to the blower fan in Watts. If no 
+      \note blower fan is required to inject the dry steam to the supply air stream, then 
+      \note this input field is set to zero.
+  N5, \field Auxiliary Electric Power
+      \type real
+      \units W
+      \minimum 0.0
+      \ip-units W
+      \default 0.0   
+      \note The auxiliary electric power input in watts. This amount of power will be consumed
+      \note whenever the unit is available (as defined by the availability schedule). This 
+      \note electric power is used for control purpose only.
+  A4, \field Air Inlet Node Name
+      \type node
+  A5, \field Air Outlet Node Name
+      \type node
+  A6, \field Water Storage Tank Name
+      \type object-list
+      \object-list WaterStorageTankNames  
+  A7; \field Inlet Water Temperature Option
+      \note The inlet water temperature can be fixed at 20C as it is done for electric steam 
+      \note humidifier or it can be allowed to vary with temperature of the water source.  
+      \note Currently allowed water sources are main water or water storage tank in water use objects.  
+      \note if FixedInletWaterTemperature is specified, then a fixed 20C water temperature will be 
+      \note used, or else if VariableInletWaterTemperature is specified, then inlet water will vary
+      \note depending the source water temperature. If this input field is left blank, then fixed 
+      \note inlet water temperature of 20C will be assumed.  
+      \type choice
+      \key FixedInletWaterTemperature
+      \key VariableInletWaterTemperature 
+      \default FixedInletWaterTemperature  
+
 Dehumidifier:Desiccant:NoFans,
        \memo This object models a solid desiccant dehumidifier. The process
        \memo air stream is the air which is dehumidified. The regeneration air