[EnergyPlus_Support] Re: Calculating Water-to-Air Heat Pump Curve-fitting Coefficients

["energyplus99" <energyplus99@xxxxxxxxx>]

Hi,

Sorry for responding late.  Thanks a bunch for uploading this
much-needed utility!  Its helped me a lot!

C


--- In EnergyPlus_Support@xxxxxxxxxxxxxxx, "Ellis, Peter"
<peter_ellis@...> wrote:
>
>
> Hello, I just uploaded a zip file containing the Excel spreadsheets
for generating the water-to-air heat pump coefficients (courtesy of
Oklahoma State University), as well as the how-to documentation, and the
Tang paper. They are on the EnergyPlus_Support Yahoo! website under:
Utilities/HeatPumpParameterGenerators.zip
>
> The spreadsheets will generate either the coefficients for the
EquationFit model or the parameters for the ParameterEstimation model
for either a water-to-air heat pump or a water-to-water heat pump.
>
> Hopefully this is still relevant for you.
>
> P
>
> -----Original Message-----
> From: EnergyPlus_Support@xxxxxxxxxxxxxxx
[mailto:EnergyPlus_Support@xxxxxxxxxxxxxxx]On Behalf Of energyplus99
> Sent: Sunday, March 04, 2007 8:56 PM
> To: EnergyPlus_Support@xxxxxxxxxxxxxxx
> Subject: [EnergyPlus_Support] Calculating Water-to-Air Heat Pump
Curve-fitting Coefficients
>
>
>
> I'm trying to generate curve-fitting coefficients for:
>
> COIL:WATERTOAIRHP:EquationFit:COOLING and
> COIL:WATERTOAIRHP:EquationFit:HEATING
>
> objects. The EP InputOutputReference alludes to using a generalized
> least-squares method and Tang, in Appendix B of his paper (Modeling
> Packaged Heat Pumps In a Quasi-steady State Energy Simulation Program)
> references an Excel spreadsheet for calculating these. But there are
> no specifics on exactly how to do this.
>
> Does anyone know how I can get a copy of this spreadsheet or how I can
> generate these coefficients using the current version of EnergyPlus?
> Is it possible that the coefficients published in the EP examples (for
> example, HeatPumpWaterToAirEquationFit.idf) are universal enough to be
> applicable to a wide variety of heat pump brands (with possibly only
> adjustments to rated flowrates, capacities and power consumption
> necessary)? Any thoughts would be much appreciated!
>
>
>
>
>
>
> [Non-text portions of this message have been removed]
>





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