[Bldg-sim] Ground Source Water-to-Water HP in eQuest

[Nick Caton]

That's pretty much what I've done for a few projects.

 

1.       Calc your loads incident on the loop, either using eQuest or
another program

2.       Use those loads to determine the annual thermal behavior of the
ground loop using a program like the free GS2000 or a similar
ground-loop design tool.

3.       Use the thermal behavior output of your ground-loop software of
choice to create a custom temperature schedule.  If you want a more
detailed explanation of the step-by-step process within eQuest, search
for my name in the eQuest/Bldgsim archives.

 

~Nick

 

 

 

NICK CATON, E.I.T.

PROJECT ENGINEER

25501 west valley parkway

olathe ks 66061

direct 913 344.0036

fax 913 345.0617

Check out our new web-site @ www.smithboucher.com 

 

From: bldg-sim-bounces at lists.onebuilding.org
[mailto:bldg-sim-bounces at lists.onebuilding.org] On Behalf Of Jackson,
Alan
Sent: Tuesday, November 03, 2009 9:20 AM
To: bldg-sim at lists.onebuilding.org
Subject: Re: [Bldg-sim] Ground Source Water-to-Water HP in eQuest

 

I believe the methodology that has been implemented with success is to
use the WTW HPs with the lake well, but to use a schedule for well water
temperatures either taken from a separate run with WTA and closed loop,
or to take the temperatures from another yearly sim in either GLHE-PRO
or GS2000.

 

 

Alan Jackson, LEED AP
KlingStubbins

 

From: bldg-sim-bounces at lists.onebuilding.org
[mailto:bldg-sim-bounces at lists.onebuilding.org] On Behalf Of Garcia,
Robert
Sent: Tuesday, November 03, 2009 10:04 AM
To: 'bldg-sim at lists.onebuilding.org'
Subject: [Bldg-sim] Ground Source Water-to-Water HP in eQuest

 

This topic appears to be a gray area within eQUEST.  Has anyone been
able to successfully model a Ground Source Water-to-Water HP connected
to a closed loop Geothermal Well Field?

 

The WWHP is to serve a radiant floor.  In addition to the WWHP, the
design also has multiple Water-to-Air Heat Pumps connected to the same
well field.  Issues rise when trying to figure out how to model the
effect of the WWHP on the Well Loop.  

 

In the past I have used the Loop-to-Loop Chiller to model a WWHP, but
the chiller requires a connection to a Lake-Well type loop.  

 

Thanks in advance.

 

Robert Garcia |AKF|

 

 

 


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