[Bldg-sim] LEED Comments for EAC1 - Optimize Energy Performance

[Ashraf Khan]

Hello,

 

I received some comments from USGBC regarding my project initial review, in
Credit EAC1 – Optimize Energy Performance. Please advise me how I can solve
below mentioned comments in the review submission,

 

1.	It is unclear whether one Baseline Constant Volume system was
modeled per thermal zone in the Baseline Case as required. Please verify
that one system was modeled per zone, and that the Baseline System
efficiency for each zone was modeled consistently with the capacity for the
Baseline System serving that zone. (please guide me how to solve this
comment)

 

2.	Section G3.1.2.9 describes calculation used to determine the fan
power in the baseline building. Please list the total fan volume,
capacities, and fan power for the Baseline and Proposed system. (As my
system doesn’t have any Return fan, so i am dividing the ASHRAE total Fan
power by 70% supply, 20% return, 10% exhaust based on my understanding.
Please guide me if any changes required)

 

3.	Based on supporting document, supply fan volumes of some of the
zones in the baseline design appear to be modeled as “AUTOSIZED”. For the
baseline design the fan supply volumes should be calculated based on the
system capacity and a temperature differential of 20°F, as set forth in
Section G3.1.2.8.(Please guide me Where can we enter the temperature diff,
is in Cooling Coil or any other ways.) 

 

Thanks & Regards,

Khan

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