[BLDG-SIM] Ground source water-to-water heat pumps

[Jeff Thornton]

At 04:17 PM 3/29/2003 -0500, you wrote:

>I have a few clients wishing to model ground source heat pumps which are 
>water-to-water heat pumps (water furnace) serving heating and chilled 
>water loops (fan coils, make-up air systems, etc).  This is not possible 
>to simulate with DOE2.1E.  Is it possible with Equest (DOE2.2) or EnergyPlus?

Chris,

We have been using the TRNSYS program for projects very similar to the one 
you mentioned above.  The ground heat exchanger model is excellent, the 
extended libraries contain all the options you mention, and the program is 
extremely flexible - allowing you to configure ANY type of HVAC system 
without being forced to "trick" the program into simulating your 
configuration.  We have published several reports and technical papers on 
geothermal system modeling in TRNSYS and would be happy to share them if 
you are interested.  And unlike many of the other programs, TRNSYS does not 
distinguish between load/system/plant models - instead solving all 
components simultaneously for a better dynamic approach.

With kindest regards,

Jeff


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