[Equest-users] Toilet Exhaust

Omar Katanani omar at ecoconsulting.net
Thu Oct 6 08:14:36 PDT 2011

Dear all,


I would like to double check with you if I'm modeling my toilet exhaust
correctly, in order to answer the USGBC's design review comments


*       The project has exhaust fans on the roof, with ducts to each
toilet (i.e., ducted exhaust). 

*       Since the toilets are not conditioned, I'm placing them
arbitrarily under random AHUs. 

*       I am then entering the exhaust flow rate and the kW per flow as
in the attached screenshot.


1.       Can someone please confirm that the above is correct?

2.       I assume ASHRAE 90.1 App G3.1.2.9 (baseline fan power
corrections) applies for toilet exhausts. I think I'll have to use the
correction factors for the 

      "Fully ducted return and/or exhaust air systems" (125 Pa). I'll
plug in the resultant kW/cfm in the input box in the attached drawing.


Many thanks,



Omar Katanani
Sustainable Design Engineer

Email: omar at ecoconsulting.net


EcoConsulting (Lebanon)

Nahas Building, 4th floor

4 St-Maron Street / Georges Haddad Avenue

Postal Code: 2028 5806 SAIFI

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/> 




-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://lists.onebuilding.org/pipermail/equest-users-onebuilding.org/attachments/20111006/cecae367/attachment.htm>
-------------- next part --------------
A non-text attachment was scrubbed...
Name: not available
Type: image/jpeg
Size: 27542 bytes
Desc: image001.jpg
URL: <http://lists.onebuilding.org/pipermail/equest-users-onebuilding.org/attachments/20111006/cecae367/attachment.jpeg>
-------------- next part --------------
A non-text attachment was scrubbed...
Name: Toilet Exhaust.JPG
Type: image/jpeg
Size: 123918 bytes
Desc: Toilet Exhaust.JPG
URL: <http://lists.onebuilding.org/pipermail/equest-users-onebuilding.org/attachments/20111006/cecae367/attachment-0001.jpeg>

More information about the Equest-users mailing list