[Bldg-sim] simulate parallel fan powered VAV using equest

Andrew Craig AndrewC at InterfaceEng.Com
Fri Feb 24 08:35:07 PST 2012



The parallel fan-powered boxes have their own power allotment once you
get into the Detailed Edit mode.  It is under the Air-Side HVAC tab.
Click on a zone and then the Air Flow tab.  This screen will show you
all of the information regarding the Zone Terminal unit and Fans.
ASHRAE 90.1-2007 Appendix G specifies 0.35 W/CFM for parallel
fan-powered boxes.




Andrew Craig PE, LEED AP
Project Mechanical Engineer

email andrewc at interfaceeng.com <mailto:andrewc at interfaceeng.com> 
direct 503.382.2696

www.interfaceeng.com <http://www.interfaceeng.com/> 

Interface recently certified our 88th LEED project. Our San Francisco
office is now LEED Gold CI.


From: bldg-sim-bounces at lists.onebuilding.org
[mailto:bldg-sim-bounces at lists.onebuilding.org] On Behalf Of Esmireta
Sent: Friday, February 24, 2012 12:04 AM
To: equest-users; BLDGSIM
Subject: [Bldg-sim] simulate parallel fan powered VAV using equest


the parallel fan powered VAV consist of a main fan in the AHU and small
parallel fans in the VAV boxes.

so how should these fans be simulated in equest?

Shall the main fan be set as the return fan, and the parallel fans be
set as the supply fan?

Thanks a lot!


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