[Equest-users] ASHRAE 90.1 ERV 50% energy recovery effectiveness - eQUEST inputs?

[Bishop, Bill via Equest-users]

I'd appreciate some sensible guidance. Please don't dampen my spirits...

Section 6.5.6.1 describes that required energy recovery systems (ERVs) "shall have at least 50% energy recovery effectiveness", meaning "a change in enthalpy of the outdoor air supply equal to 50% of the difference between the outdoor air and return air enthalpies at design conditions".
My reaction is to model this by setting both the sensible and latent effectiveness (ERV-SENSIBLE-EFF and ERV-LATENT-EFF) to 50% (0.50).
Is this correct?

Ye be thanked,
~Bill

William Bishop, PE, BEMP, BEAP, CEM, LEED AP | Pathfinder Engineers & Architects LLP
Senior Energy Engineer

[cid:image007.jpg at 01D2CFD5.C3882970]  [cid:image008.jpg at 01D2CFD5.C3882970]



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bbishop at pathfinder-ea.com<mailto:wbishop at pathfinder-ea.com>             www.pathfinder-ea.com<http://www.pathfinder-ea.com/>

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