[Bldg-sim] Fan formula System 1 & 2 ASHRAE 90.1 - 2007
jglazer at gard.com
Wed Jan 27 06:45:59 PST 2010
The IP version is correct.
On 1/27/2010 7:56 AM, Jaigath Chandraprakash wrote:
> Hi All,
> Appendix G18.104.22.168 of ASHRAE 90.1-2007 gives the formula for systems 1 &
> 2: Pfan = CFMs x 0.3 where CFMs is the supply fan airflow rate in cfm
> and Pfan is in watts. I just noticed that in SI version, the formula is
> the same Pfan = CFMs x 0.3 where Pfan is also in watts but CFMs is in
> lps. Which is version correct? I have already looked into the erratas
> and addendum but did not find any corrections.
> Thank you all in advance.
> Jaigath Chandraprakash
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Jason Glazer, P.E., GARD Analytics, 90.1 ECB chair
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