[BLDG-SIM] Heat recovery in eQUEST (yes - another question)

[Jeff Haberl]

Depends on the system and building loads.

 

What's the system? What are the internal loads?

 

Jeff

 

8=!  8=)  :=)  8=)  ;=)  8=)  8=(  8=)  8=()  8=)  8=|  8=)  :=')  8=)
8=)  8=?

Jeff S. Haberl, Ph.D.,
P.E.............................jhaberl at esl.tamu.edu

Professor......................................................Office
Ph: 979-845-6507

Department of Architecture.......................Lab Ph: 979-845-6065 

Energy Systems Laboratory.......................FAX: 979-862-2457 

Texas A&M University..............................77843-3581

College Station, Texas, USA.......................URL: www-esl.tamu.edu

8=/  8=)  :=)  8=)  ;=)  8=)  8=()  8=)  :=)  8=)  8=!  8=)  8=?  8=)
8=)  8=0 

 

________________________________

From: postman at gard.com [mailto:postman at gard.com] On Behalf Of Vikram
Sami
Sent: Tuesday, May 31, 2005 5:43 PM
To: BLDG-SIM at gard.com
Subject: [BLDG-SIM] Heat recovery in eQUEST (yes - another question)

 

I followed the method suggested earlier to model the heat recovery
system (Renee's email). I set the ERV type to 'enthalpy wheel', with the
make up air temp ctrl set to mixed air reset & capacity control to '
trim economizer's (the design engineer suggested this was the closest to
the designed system). 

 

The overall savings shown were minute, with a penalty shown on the
electric side in fans (this I had foreseen from additional static
pressure needed to drive the air through the enthalpy wheel) & space
cooling (this was surprising - especially since the base system had
humidity controlled at 50%). The space heating was the only thing which
showed considerable savings.

 

Am I missing something, or does this mean that the system (a Semco ERV
unit) is probably not great for this climate (Asheville, NC). 

 

I would appreciate any insight into this

 

Thanks

 

 

Vikram Sami,  LEED AP 
Direct Phone 404-253-1466 | Direct Fax  404-253-1366 

LORD, AECK & SARGENT ARCHITECTURE
Responsive Design * Technological Expertise * Exceptional Service 
www.lordaecksargent.com 

 

 
 
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