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Re: [EnergyPlus_Support] HeatPump:WaterToWater
Yes, but in the example files, the heat pump is scheduled to be in
heating mode for the entire winter, and in cooling mode for the entire
summer.
In reality, the heat pump can switch from heating mode to cooling mode
on an hourly or sub-hourly basis. My question is whether the program
requires the scheduling of the heating mode to be off while cooling
mode is on using a PlantEquipmentOperationSchemes object, OR is it
possible to allow the heat pump to choose either heating mode or
cooling mode for each timestep?
Thanks,
Karen
On 3/15/11, James V Dirkes II, PE <jim@xxxxxxxxxxxxxxxxxxxxxxxxxxx> wrote:
> Dear Karen,
>
>
>
> Not sure what you mean here. A heat pump can only operate in one mode or
> the other.
>
>
>
> The Building Performance Team
> James V. Dirkes II, P.E., LEED AP
> 1631 Acacia Drive NW
> Grand Rapids, MI 49504
> 616 450 8653
>
>
>
> From: EnergyPlus_Support@xxxxxxxxxxxxxxx
> [mailto:EnergyPlus_Support@xxxxxxxxxxxxxxx] On Behalf Of Karen Walkerman
> Sent: Tuesday, March 15, 2011 10:58 AM
> To: EnergyPlus_Support@xxxxxxxxxxxxxxx
> Cc: Ehsan Baharvand
> Subject: Re: [EnergyPlus_Support] HeatPump:WaterToWater
>
>
>
>
>
> I recently looked into these object, and the example files have the water to
> water heat pump scheduled to operate either in heating mode, or in cooling
> mode. Is it possible to allow the heat pump to decide either for the given
> timestep?
>
>
>
> Thanks,
>
>
>
> Karen
>
>
>
> On Tue, Mar 15, 2011 at 10:32 AM, Ehsan Baharvand <ebaharvand@xxxxxxxxx>
> wrote:
>
>
>
> Thank you Linda! These are the files indeed.
>
>
>
> Best regards,
>
> Ehsan
>
> _____
>
> From: Linda Lawrie <linda@xxxxxxxxxxxxxx>
>
>
> To: EnergyPlus_Support@xxxxxxxxxxxxxxx
>
> Sent: Tue, March 15, 2011 3:17:10 PM
> Subject: Re: [EnergyPlus_Support] HeatPump:WaterToWater
>
>
>
>
> Which EnergyPlus Example File has...
>
> Two links from the installation:
>
> Example Files Summary Sheet - highlights each example file
>
> Example Files Link to Objects - shows the first three example files (if that
> many exist) that have a particular object.
> From the second spreadsheet:
> HeatPump:WaterToWater:EquationFit:Cooling 1 GSHPSimple-GLHE.idf
> HeatPump:WaterToWater:EquationFit:Heating 1 GSHPSimple-GLHE.idf
> HeatPump:WaterToWater:ParameterEstimation:Cooling 2 GSHP-GLHE.idf
> PlateHeatExchanger.idf
> HeatPump:WaterToWater:ParameterEstimation:Heating 2 GSHP-GLHE.idf
> PlateHeatExchanger.idf
>
> At 08:01 AM 3/15/2011, Ehsan Baharvand wrote:
>
>
>
> Thank you James for your reaction.
>
> No Example For My Case
> Indeed, I did look to the example file library. However I couldn't find any
> examples of water-2-water heatpump plant system!
>
> Existing Examples
> There are several heatpump examples, however these examples are all kind of
> water-to-air heatpump systems which mostly use local HVAC:Template or
> Coil:Cooling:... objects and no Plant Equipment Objects.
>
> Possible Object to Use for my problem
> I studied the background and the physical description of some existing plant
> objects. I think HeatPump:WaterToWater:EquationFit:Heating &
> WaterToWater:EquationFit:Cooling objects under Plant Heating & Cooling
> Equipment suite th most to my problem.
>
> Questions
> Do you have experience with the above objects?
> Are any of these objects used in the example idf-files?
>
> Best regards,
> Ehsan
>
>
>
>
>
> From: "James V Dirkes II, PE" <jim@xxxxxxxxxxxxxxxxxxxxxxxxxxx>
> To: EnergyPlus_Support@xxxxxxxxxxxxxxx
> Sent: Tue, March 15, 2011 2:31:57 PM
> Subject: RE: [EnergyPlus_Support] HeatPump:WaterToWater
>
>
>
> Ehsan,
>
>
>
> Review the example files which come with E+. There is at least one example
> of this system.
>
>
>
> The Building Performance Team
> James V. Dirkes II, P.E., LEED AP
> 1631 Acacia Drive NW
> Grand Rapids, MI 49504
> 616 450 8653 <tel:616%20450%208653>
>
>
>
>
> From: EnergyPlus_Support@xxxxxxxxxxxxxxx [
> mailto:EnergyPlus_Support@xxxxxxxxxxxxxxx
> <mailto:EnergyPlus_Support@xxxxxxxxxxxxxxx> ] On Behalf Of Ehsan Baharvand
> Sent: Tuesday, March 15, 2011 9:15 AM
> To: EnergyPlus_Support@xxxxxxxxxxxxxxx
> Subject: [EnergyPlus_Support] HeatPump:WaterToWater
>
>
>
>
>
> Dear all,
>
>
>
> Problem
>
> I'm attempting to model a Water-To-Water HeatPump Plant System.
>
>
>
> Questions
>
> - Is there someone how has experience with modelling of this system?
>
> - What is the proper way to model such a system? Which objects can be used?
>
>
>
> I hope you can help me with this!
>
>
>
> Best Regards,
>
> Ehsan
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
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