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NC-2009 EAp2:Minimum Energy Performance

MEPCalculator - Process Loads tab

Greetings, The abreviation EFLH applied to Garage Fan Power Calculation is unnown to me. Could someone please explain it and also if there are some special provisions related to it, please advice. Thanks

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Marcus Sheffer
LEED Fellow
7group / Energy Opportunities
LEEDuser Expert
4454 thumbs up

Thu, 07/13/2017 - 14:42

Equivalent Full Load Hours = energy use/demand (kWh/kW) This is a simple method to determine the number of hours a system is operating. Reviewers use it as a quick check on the validity of the modeling results compared to the reported modeling inputs and the expected operational schedule of the project. Garage fans usually run 8760 hours/year.

Thu, 07/13/2017 - 14:54

Hi Marcus, Thanks for the reply. In our case, the project designer has established an operating schedule, upon which the garage ventilation are not workinng weekends, hollidays and during the nights (exeption only for emergency cases). Such a schedule we've applied also in the Baseline. The project design has been calculated in accordance to the local norms, whereas the Baseline - as per 62.1. The project design has also designed CO control, but the energy savings in result of the air flows different air flows are big enough, so that's why we've applied an eaquivalent schedule, because otherwise the energy saving will be more than 75%. Is it OK such an approach? Thanks
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Marcus Sheffer
LEED Fellow
7group / Energy Opportunities
LEEDuser Expert
4454 thumbs up

Thu, 07/13/2017 - 15:19

Hard to say without seeing the details but in general the approach sounds right. I assume you are applying the latest LEED Interpretation 10371 on this subject.

Thu, 07/13/2017 - 15:55

Yes, I do, The operatinf schedule we've applied identically in both cases is very similar to a shcedule with DCV - meaning lot less than 8760 hours/year. Hope it is OK Thanks.
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Marcus Sheffer
LEED Fellow
7group / Energy Opportunities
LEEDuser Expert
4454 thumbs up

Thu, 07/13/2017 - 16:10

It should be fine, just explain the operating schedule in the narrative to the reviewer.

Thu, 07/13/2017 - 16:23

Thanks a lot, Marcus

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