Hello,
GIBc12 - District heating and cooling requires that "annual district pumping energy consumption that exceeds 2.5% of the annual thermal energy output of the heating and cooling plant must be offset by increases in the component’s efficiency beyond the 10% improvement".
What is included in the district pumping energy consumption? Only distribution pumping? Or other pumping consumption must be included too?
Thank you
Eliot Allen
LEED AP-ND, PrincipalCriterion Planners
LEEDuser Expert
303 thumbs up
September 30, 2018 - 3:32 pm
Vincent, in addition to distribution network pumps you should also include central plant pumps.
Eliot
Vincent Dupuy
1 thumbs up
October 9, 2018 - 9:40 am
Thank you Eliot.
Here the questions of my colleagues responsible for this projet, for whom requirements seem very difficult to achieve.
“ Additionally, annual district pumping energy consumption that exceeds 2.5% of the annual thermal energy output of the heating and cooling plant (with 1 kWh of electricity equal to 3,413 Btus) must be offset by increases in the component’s efficiency beyond the specified 10% improvement.”
Our understanding is each pump shall not consume more than 2.5% of the annual cooling output of the DCS plant. This sentence seems to apply per equipment, and not for the whole plant.
Is it a proper understanding? I have some doubts..
Eliot Allen
LEED AP-ND, PrincipalCriterion Planners
LEEDuser Expert
303 thumbs up
October 14, 2018 - 2:32 pm
Vincent, the sentence should be applied to each pump. The reference in the middle of the sentence to "the component's" is a singular possessive reference to an individual pump.
Eliot