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NC-2009 EAp2: Minimum Energy Performance

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Do I model part-load curve for the DES default efficiency?

February 4, 2014

X. Chen

Stantec

LEEDuser Premium Member

1 thumbs up

February 4, 2014

The DES guideline (2010) allows us to model DES cooling plant with a COP of 4.4, which includes cooling towers and primary pumps. When we use this default efficiency, can we still apply a part-load curve? (something like 90.1 default curve) Or is it an average efficiency which already count for all part-load and full-load condition? (in which case we need to apply a flat curve to the cooling plant) Thanks.

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Marcus Sheffer

LEED Fellow
7group / Energy Opportunities

LEEDuser Expert

5925 thumbs up

February 10, 2014 - 9:32 am

It is an average efficiency so the curve is flat.

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Jean Marais

b.i.g. Bechtold DesignBuilder Expert

LEEDuser Basic Member

832 thumbs up

February 11, 2014 - 8:55 am

Now there is room for improvement code wise, eh?

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