[Equest-users] GSHP with Displ. Vent. & Radiant/Baseboard

David Eldridge DEldridge at grummanbutkus.com
Mon Nov 11 16:18:44 PST 2013


Check out the "Loop to Loop Heat Pump" type of chiller and see if that describes how you are making the hot water and cooling for your building in one or both cases.

David


David S. Eldridge, Jr., P.E., LEED AP BD+C, BEMP, BEAP, HBDP
Grumman/Butkus Associates



From: equest-users-bounces at lists.onebuilding.org [mailto:equest-users-bounces at lists.onebuilding.org] On Behalf Of Brian Smith
Sent: Friday, November 08, 2013 3:13 PM
To: equest-users at lists.onebuilding.org
Subject: Re: [Equest-users] GSHP with Displ. Vent. & Radiant/Baseboard

Any help would be great, Didnt mention but this is also a LEED project

Thanks
Brian


From: Brian Smith [mailto:brians at murraypc.com]
Sent: Wednesday, November 06, 2013 4:27 PM
To: gutschow at coffman.com<mailto:gutschow at coffman.com>; equest-users at lists.onebuilding.org<mailto:equest-users at lists.onebuilding.org>
Cc: 'Roger Smith'
Subject: [Equest-users] GSHP with Displ. Vent. & Radiant/Baseboard

Hey,

I'm try to model a Library that will use displacement ventilation being supplied at about 64F and then the radiant/baseboard heat picking up to rest of the load to 69F. Read through some eQuest design guides to model the displacement ventilation to satisfactory results. I ultimately had to use a PSZ system while I would have preferred to use a single zone reheat system SZRH or better yet Const-Volume Reheat System RHFS i could make those not error.  Any luck?

Here's my biggest problem though. . .
I used hot water baseboards to approximate the radiant:-(. Everything was going well until it was decided that for this cost estimate we wanted to model the system as having both the heating coil and radiant/baseboard hw as being 100% supplied by the ground source HP system. I cant figure out that at all? eQuest wants to put the baseboards on a hw loop with boiler and will error when I try  to put it on a water loop heat pump loop.

Any experince or help with doing this would be great

Thanks
Brian Smith, Mechanical Design Engineer
Murray & Associates, P.C.
T/907.780.6151 F/907.780.6182
www.murraypc.com

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