[Equest-users] Fw: how to model an air cooled heat pumpfor hot water

Paul Brooks equestpaul at yahoo.com
Tue Jun 8 11:16:33 PDT 2010





----- Forwarded Message ----
From: Paul Brooks <equestpaul at yahoo.com>
To: "Ramirez, Bob" <Bob.Ramirez at itron.com>
Sent: Tue, June 8, 2010 2:16:09 PM
Subject: Re: [Equest-users] how to model an air cooled heat pumpfor hot water


It is a very wierd application, except for a non-US project.  the project happens to be in South America.

The equipment is Trane, but European manufactured.  It is equipment and systems that is not common to the US market. 

FYI, using heat pumps to produce chilled and hot water is not uncommon.

 




________________________________
From: "Ramirez, Bob" <Bob.Ramirez at itron.com>
To: Paul Brooks <equestpaul at yahoo.com>
Sent: Tue, June 8, 2010 1:54:14 PM
Subject: RE: [Equest-users] how to model an air cooled heat pumpfor hot water


Hi Paul.  This is either a really weird application, or this is a water-loop heat pump that uses the water loop (rather than air) for it’s heat sink-source (not to provide cool/heat directly to the conditioned space).
 
The heat pump should provide cooling/heating directly to the conditioned space, not indirectly via a water loop.
 
If this is a WLHP, I would highly recommend that before you do any modeling, you become familiar with at least the most common types of HVAC systems, or read the DOE2 manual on such.
 
Bob Ramírez, P.E.
Itron Consulting & Analysis Group > http://www.itron.com/consulting
11236 El Camino Real > San Diego, CA  92130
Main: 858-724-2620   Direct: 858-724-2650  Cell: 858-692-5676
E-mail > Bob.Ramirez at Itron.com
 
From:equest-users-bounces at lists.onebuilding.org [mailto:equest-users-bounces at lists.onebuilding.org] On Behalf Of Paul Brooks
Sent: Tuesday, June 08, 2010 10:45 AM
To: eQuest user forum
Subject: [Equest-users] how to model an air cooled heat pumpfor hot water
 
I have a system that is using an air cooled heat pump to provide chilled water for cooling, and or hot water for heating.  I tried modeling an aircooled heat pump, but was unable to connect the heating side to the hot water loop.  
 
It seems the best thing to do is to model an electric boiler, and make the operating chatictaristics mimic a heat pump.  any thoughts?  
 
Thank you


      
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