[Bldg-sim] [Equest-users] Heat Pump Efficiencies

[Mehta, Gaurav]

Heating EIR = (1/(COP*3.413)-0.012167)/((1/3.413)-0.012167)

 

and

 

Heating EIR = (1/((HSPF*0.28+1.13)*3.413)-0.012167)/((1/3.413)-0.012167)

 

Gaurav Mehta, LEED® AP
Sustainable Building Analyst
Stantec

1932 First Avenue Suite 307
Seattle WA 98101
Ph: (206) 770-7779
Fx: (206) 770-5941
Gaurav.Mehta at stantec.com

stantec.com <http://www.stantec.com>  

 

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From: bldg-sim-bounces at lists.onebuilding.org [mailto:bldg-sim-bounces at lists.onebuilding.org] On Behalf Of Demba Ndiaye
Sent: Wednesday, May 12, 2010 12:27 PM
To: equest-users at lists.onebuilding.org; bldg-sim at lists.onebuilding.org
Subject: Re: [Bldg-sim] [Equest-users] Heat Pump Efficiencies

 

The formulas below were shared sometimes ago. Does anyone know the corresponding formulas for the COP and HSPF?

 

_______________

Demba NDIAYE

 

From: equest-users-bounces at lists.onebuilding.org [mailto:equest-users-bounces at lists.onebuilding.org] On Behalf Of Bishop, Bill
Sent: Wednesday, March 24, 2010 2:39 PM
To: Carol Gardner; Bassam Yammine
Cc: equest-users at lists.onebuilding.org
Subject: Re: [Equest-users] Heat Pump Efficiencies

 

Carol,

 

I got the attachment from an eQUEST training CD. Marlin Addison is listed as the author.

 

Regards,

Bill

 

William Bishop, EIT, BEMP, LEED® AP | Pathfinder Engineers & Architects LLP

Mechanical Engineer

 

134 South Fitzhugh Street
Rochester, NY 14608
T: (585) 325-6004 Ext. 114
F: (585) 325-6005

wbishop at pathfinder-ea.com

www.pathfinder-ea.com

P Please strive to live sustainably.

________________________________

From: equest-users-bounces at lists.onebuilding.org [mailto:equest-users-bounces at lists.onebuilding.org] On Behalf Of Carol Gardner
Sent: Wednesday, March 24, 2010 12:12 PM
To: Bassam Yammine
Cc: equest-users at lists.onebuilding.org
Subject: Re: [Equest-users] Heat Pump Efficiencies

 

I also found some formulas when tooling around in the archives the other day and could love to get comments, if any about their utlity:

EIR=(1/EER-0.012167)/((1/3.413)+0.012167)
and
EIR=((1/SEER*0.778+1.4)-0.012167)/((1/3.413)+0.012167)

Anyone remember these that knows the source and utility? Is there one for HSPF?

Carol

On Wed, Mar 24, 2010 at 7:50 AM, Bassam Yammine <byammine at flowgroup.ca> wrote:

Hi Michael, to modify the EIR (which is in Btu/Btu) in the detailed mode, click on the Air-Side HVAC icon at the top of your screen, then double click on the heat pump. Under the cooling and heating tabs you will find a Unitary Power tab where you can change your EIR.

 

Regards,

Bassam

 

From: equest-users-bounces at lists.onebuilding.org [mailto:equest-users-bounces at lists.onebuilding.org] On Behalf Of M. Shields
Sent: Wednesday, March 24, 2010 6:59 AM
To: equest-users at lists.onebuilding.org
Subject: [Equest-users] Heat Pump Efficiencies

 

Hi All,

 

I am still fairly new to equest and I am having a bit of trouble with setting up my HVAC.  I created a building model using the equest wizard and now I have made a number of changes within the detailed DOE2 interface.  The building uses air source heat pumps for the HVAC and I would like to change the EER/COP values without going back to the wizard, but I cannot figure where these values are stored.  Is there an easy way to make changes like that within DOE2?

 

Thanks,

Michael Shields

 

____________________________
Michael Shields
Facility Strategies Group
2222 Gold Hill Road, Suite 5
Fort Mill, SC 29708
Phone: 803-493-4507
Fax: 803-548-2511
Email: mshields at fstrategies.com

 


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