[Equest-users] HEAT-EIR-FT for heat pumps with water cooled condensers?

Aaron Smith asmith at mreng.ca
Sun Apr 13 15:30:04 PDT 2014


Brian,

It looks to be EDB and EWT for heating (and EWB and EWT for cooling), refer to the attached from the DOE2.2 Dictionary.

Regards,
Aaron

Aaron Smith, P.Eng
M&R Engineering Ltd.

Sent from my BlackBerry 10 smartphone on the TELUS network.
  Original Message  
From: Brian Fountain
Sent: Sunday, April 13, 2014 16:21
To: equest-users at lists.onebuilding.org
Subject: [Equest-users] HEAT-EIR-FT for heat pumps with water cooled	condensers?

I am modelling a building with distributed water loop heat pumps. I am
looking at the electricity used for space heating (the compressor energy in
heating mode). This depends on a part load curve HEAT-EIR-FT which is a
function of two temperatures. Based on the DOE2 documentation, it is not
clear to me which two temperatures this curve is using to modify the
compressor energy for a water-cooled heat pump. 



For an air-cooled heat pump, the curve is a function of entering dry-bulb
temperature and outdoor dry-bulb temperature. I want to know what the X and
Y values are for a water-cooled heat pump.



Can anyone provide any clarification on this?



Many thanks.



Brian

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