[BLDG-SIM] Three WSHP/GSHP modeling challenges

[Sheila Sagerer]

Brian-

I can't answer #1 or #3 but would be very interested in any responses.

Question #2:  Whenever we have this situation, we set up an independent HRV
unit with a dummy zone and run all OA for the WSHPs through the HRV.  The
HRV unit would have 100% OA with heat recovery and VAV.

Hope this helps.  Have a nice weekend.

Sheila Sagerer
Energy Engineer, LEED AP
Energy Opportunities, Inc
Phone: 717-880-9069
Fax: 717-291-9497

  -----Original Message-----
  From: postman at gard.com [mailto:postman at gard.com]On Behalf Of Brian
Thornton
  Sent: Friday, April 15, 2005 9:58 AM
  To: BLDG-SIM at GARD.COM
  Subject: [BLDG-SIM] Three WSHP/GSHP modeling challenges


  I am starting a condominium tower project with three design features that
I am struggling with how to model in eQuest and DOE2.2.  Any ideas?



  1)  WSHPs with desuperheaters.  I want to capture heat off the compressor
cycle for DHW, and show impact on WSHP performance and capacity.



  2)  Heat recovery ventilators in each townhouse in addition to WSHP.
Appears ERVs are not available with the WSHP system commands.



  3)  WSHP loop supplemented by a ground-source well-field sized to 25% of
the cooling peak.  WSHP loop with ground source well-field allows
supplemental cooling tower, but documentation says that a boiler cannot be
used to supplement the ground source well-field.  This WSHP and ground
source loop design with a boiler and tower is on a number of condo towers in
Vancouver BC apparently.



  Thanks,



  Thornton Energy Consulting

  p. 503-231-6600 f. 503-231-3555

  thorntonenergy at comcast.net




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