Re: [EnergyPlus_Support] COP OF HEAT PUMP

[shaheen asif <aali_asif@xxxxxxxxx>]

Actually I know their is a manufacturer who is claiming to have COP of heat pump greater than 10. For one our project we used his equipment and for LEED Canada modelling we are not able to define more than 10 so we need to do some work around in DOE 2.1. 

Richard Raustad <RRaustad@xxxxxxxxxxxx> wrote:          The maximum is only limited by available technology (or what you think 
you might be able to design/build using advanced technology). COP = 
Output (W)/Input (W). EER = Output (Btu/hr)/Input (W). A COP of 10 is 
equivalent to a heat pump EER of 34 (Watts * 3.413 Btu/hr/Watt) which is 
not currently available with todays technology. Your maximum for heat 
pump's in E+ should be from 3 (nominal efficiency) to 6 (very very 
efficient).

shaheen asif wrote:
>
> Is there is any maximum limit for defining COP value of heat pump? How 
> system calculates.I am EE4 software in which i can define maximum COP 
> value of 10. So I am trying find what is the limitation in Energyplus 
> software.
>
> Thanks.
>
> Shaheen
>
>
> [Non-text portions of this message have been removed]
>
> 

-- 
Richard A. Raustad
Senior Research Engineer
Florida Solar Energy Center
University of Central Florida
1679 Clearlake Road
Cocoa, FL 32922-5703
Phone: (321) 638-1454
Fax: (321) 638-1439 or 1010
Visit our web site at: http://www.fsec.ucf.edu

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[Non-text portions of this message have been removed]


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