[Trace-users] WSHP

[Briller, Dan]

Hi Oscar,

>From what I know (I just did a similar project), you have to have the thermal storage capacity in the WSHP loop. The thermal storage is the "first responder" to calls for heat and cold from the zones (in this case, rooms). The cooling tower and supplemental heating boost the thermal storage as-needed but typically operate intermittently.

Your model may have some other flaw(s)  that allows for the high savings. Or the 40% could be the normal condition (I just achieved 33% against a very difficult baseline). In addition, a COP of 4 is not that great (mine has a heating COP of 5.2 and cooling EER of 14.4).

Hope that's helpful,

Dan Briller
RS&H



Daniel L. "Dan" Briller P.E., LEED AP BD+C
Energy/Environmental Engineer
10748 Deerwood Park Boulevard South
Jacksonville, FL  32256-0597
Phone: 800-741-2014 x2329 / Mobile: 571-314-4002
mailto:Dan.Briller at rsandh.com

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-----Original Message-----__________

From: trace-users-bounces at lists.onebuilding.org [mailto:trace-users-bounces at lists.onebuilding.org] On Behalf Of Oscar Buchely L.
Sent: Friday, May 02, 2014 11:51 AM
To: trace-users at lists.onebuilding.org
Subject: [Trace-users] WSHP

Hello Trace users

I´m modelling a WSHP plant with a COP of 4 and getting 40% reduction in cooling space energy consumption in comparison with a chiller with the same COP and similar performance curves. I have put "none" in thermal storage box in plant section for the WSHP.


Any thoughts about the hight savings?

--

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