[Bldg-sim] GSHP with Horizontal Heat Exchangers
Nick Caton
ncaton at smithboucher.com
Fri Jun 18 12:41:15 PDT 2010
Hi there!
I am not an Energy Plus user at all, but you may be interested to know
of a free program: GS2000
<http://canmetenergy-canmetenergie.nrcan-rncan.gc.ca/eng/software_tools/
gs2000.html>
This is a simple, small program developed by the Canadians that I rely
on to both size and model Ground loop heat exchangers (GLHX). It's not
as fully featured or user-friendly as I expect some of the for-cost
software packages are out there, but very functional for what it does
cover. The included help files are surprisingly helpful, by the way.
The basic procedure I use in eQuest is to determine the annual
temperature behavior of the GLHX using a periphery program like GS2000,
then to model a simple lake/well-type GLHX with a custom annual
temperature schedule to match the actual behavior of the GLHX.
If nothing else, it's a handy little tool to know about for design/model
verification purposes =). Here is a screengrab showing that a series of
horizontal GLHX sub-types are worked into the program for input:
~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 tugrul
karaguzel
Sent: Friday, June 18, 2010 2:03 PM
To: bldg-sim at lists.onebuilding.org
Subject: [Bldg-sim] GSHP with Horizontal Heat Exchangers
Hi,
I'm working with Energy Plus modeling of a zero energy house which
incorporates a ground source heat pump (GSHP) with horizontal heat
exchangers.
However, I cannot find any instance of such a system defined as an
Energy Plus model. Examples that I found are all based on vertical bore
holes.
Has anyone have experience with Energy Plus modeling of GSHP with
horizontal HXs.
Thanks.
Omer Tugrul Karaguzel
Center for Building Performance & Diagnostics (CBPD)
Carnegie Mellon University
5000 Forbes Ave. Pittsburgh, PA 15213
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