Forum discussion
NC-2009 EAp2: Minimum Energy Performance
I have a question regarding G3.1.2.8. Per this section a return fan is required for the baseline system if there is a return fan in the proposed model. Does the exhaust fan of the proposed energy recovery ventilator mean that a return fan is required for the VAV system in the baseline?
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Christopher Schaffner
CEO & FounderThe Green Engineer
LEEDuser Expert
963 thumbs up
July 15, 2013 - 3:18 pm
Yes
Jean Marais
b.i.g. Bechtold DesignBuilder Expert832 thumbs up
July 17, 2013 - 10:43 am
In the case of the baseline having both exhaust and supply fans, how is the fan power calculated for each individual fan? The normal formulas assume the total "supply" air flow (including exhaust), but I guess it is applied to each fan and its airflow, right?
Marcus Sheffer
LEED Fellow7group / Energy Opportunities
LEEDuser Expert
5909 thumbs up
July 17, 2013 - 11:04 am
Appendix G does not say how to distribute the fan power so it is up to the individual modeler to do so. Your approach sounds logical.