[EnergyPlus_Support] Re: Heat Pump

["don_shirey" <shirey@xxxxxxxxxxxxxxxxxx>]

Sorry -- the object Coil:DX:MultiSpeed:CoolingEmpirical will be 
available with the release of version 1.1 next month.  I forgot that 
it wasn't included in the last release.


--- In EnergyPlus_Support@xxxxxxxxxxxxxxx, "don_shirey" <shirey@a...> 
wrote:
> COIL:DX:CoolingBypassFactorEmpirical cools the air (does not heat
it 
> as you replied below).
> 
> COIL:DX:HeatingEmpirical heats the air (does not cool it as you 
> replied below).
> 
> COIL:GAS:HEATING operates when the DX heating coil 
> (COIL:DX:HEATINGEMPIRICAL) is unable to provide enough heat to meet 
> the thermostat heating setpoint temperature.
> 
> In many instances, heat pumps are sized to meet the peak cooling
> load. 
>  In heating mode, the heat pump does the best it can to meet the 
> heating load, but supplemental heating (typically natural gas or 
> electric) is used to provide additional heating when it gets cold 
> outside.
> 
> There is a cooling coil object called 
> Coil:DX:MultiSpeed:CoolingEmpirical that you may want to
investigate 
> if you want two stages of cooling capacity (high and low).
> 
> --- In EnergyPlus_Support@xxxxxxxxxxxxxxx, "Cristina
> Castaño/LABEIN" 
> <ccastano@l...> wrote:
> > 
> > Thanks for your help Don,
> > 
> > We already knew that those are the names of three types of coils
> and 
> that
> > these are explained in the input - output document and in the 
> Engineering
> > Manual but we do not understand the explanation of each coil.
> > 
> > We think that the COIL:DX:CoolingBypassFactorEmpirical heats the
> air 
> and
> > COIL:DX:HEATINGEMPIRICAL cools it. And if  COIL:GAS:HEATING      
> operates
> > when the DX heating coil ( "HeatPump DX Heating Coil 1") is
unable 
> to
> > provide enough heat by itself to maintain the thermostat heating 
> setpoint
> > temperature in the control zone, why isn´t there other coil to 
> maintain the
> > thermostat cooling setpoint temperature?.
> > 
> > Cristina.


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