[Equest-users] Supply / Return Fans - Reporting kW values

[Omar Katanani]

Dear all,

 

I am modeling an elementary school for LEED purposes, and currently
appealing for the EA Prerequisite 2.

 

In the baseline model:

 

My zones are supplied by several AHUs, each delivering an amount of air
that includes both re-circulated and fresh air. When determining the
baseline fan power, I am using the attached excel sheet. The supply air
(column C) includes the fresh air (column E) plus return air (Column F).
This sheet gives me the total supply kW/CFM in (Column N). The question
is:

 

In eQUEST, given that my supply kW/CFM includes the return air, do I
need to zero out any return fans kW when inputting the AHU parameters?
My thought is that I must put them as zero, because I would be double
counting the return air consumption if I didn't.

 

Best regards,

Omar 

___________________________

Omar Katanani
Sustainable Design Engineer

Email: omar at ecoconsulting.net

 

EcoConsulting (Lebanon)
Nahas Building, 4th floor

Georges Haddad Avenue

Postal Code: 2028 5806, Saifi District

Beirut, Lebanon

Tel:  +961 (0) 1 971 266 
Mobile: +961 (0) 3 045 045

EcoConsulting (UK) Ltd
28 Marshalsea Road
London, SE1 1HF
Tel: +44 (0)207 939 0989
Fax: +44 (0)207 939 0981

Website: www.ecoconsulting.net <http://www.ecoconsulting.net/> 

 

 

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