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Our project has a large process load—75%. Despite our efforts to make an efficient HVAC design, the cost savings are minimal. What can we do to earn this prerequisite and be eligible for LEED certification? Is there any flexibility in how we model the p

Can SHGC be higher in the proposed than in the baseline model?

Our process load is higher than 25%. Do we have to justify that?

Do I need to justify the electrical and fuel rates I am using in my model?

Our local code references ASHRAE 90.1-2010. Should I use that for my documentation, or 90.1-2007?

Can I claim exterior lighting savings for canopy lighting even though a baseline model cannot include shading elements?

The project is built on a site with existing exterior lighting installed. How should this be accounted for?

Can mezzanines open to floors below be excluded from the energy model?

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How commonly are the 90.1 mandatory compliance forms submitted as part of EAp2/EAc1?

The Section 9 space-by-space method does not include residential space types. What should I use?

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Is it acceptable to model a split-type AC with inverter technology compressor as a heat pump, like modeling VRF?

Can the Trace 700 'LEED Energy Performance Summary Report' by uploaded to LEED Online in lieu of the Section 1.4 tables spreadsheet?

A portion of our building envelope is historic. Can we exclude it from our model?

Which baseline HVAC system do I use if my building has no heating or air conditioning?

For an existing building, do I need to rotate the model?

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Forum discussion

NC-2009 EAp2:Minimum Energy Performance

Calculate pump power

PAWAN DAHIWAL

LEEDuser Basic Member

7 thumbs up

March 22, 2013

hi, i need an answer to calculate pump power. We know the how much gallon of hot water is required per day to serve 26 floor building to meets its DHW requirements. But i am not sure what will be the capacity of pump that i should installed which supply this hot water to different floor of building. I think its not possible to use pump power formula [(=GPM*SG*Head/3690*Np). In this formula we need gallon per minutes and head.]. Finally, all that i have is gallon per day requirement and building floor 26 and on each floor two apartment

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Marcus Sheffer

LEED Fellow

7group / Energy Opportunities

LEEDuser Expert

4454 thumbs up

Mon, 04/01/2013 - 19:58

This is a plumbing design question and not really applicable to a LEED specific discussion forum related to minimum energy performance.

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