[Equest-users] e-Quest doubt

[Anthony Hardman]

This is just saying that your simulated fan demand never reaches the design day values (probably calculated by different engineers, using different assumptions and different software) shown on mechanical schedules.  Take a look at your SS-L reports and you’ll be able to see what your fans are doing relative to design day conditions.

Anthony Hardman, PE, BEAP, LEED AP BD&C
Senior Building Performance Analyst, Owner
The Green Engineer
Sustainable Design Consulting
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From: Balaji Jaishankar [mailto:bjaishankar at mepcinc.com]
Sent: Friday, March 1, 2019 12:25 PM
To: equest-users at lists.onebuilding.org
Subject: [Equest-users] e-Quest doubt

We are modelling a typical office building with multiple shells in e-Quest.
1)      The fan demand in the “Performance output tab” which is obtained from “PS-E Energy End use summary “ is less compared to the Fan design input in “ Air side HVAC tab which is obtained through “ SV-A System Design Parameters” report.
This henceforth creates a flag in the final performance outputs tab which reads “The fan demand ( as reported from performance outputs tab) for the baseline and or proposed exceeds the fan power as reported from “ Air side HVAC tab”.

Please advise on where we could be going wrong with the inputs that we are seeing this difference in both proposed and baseline models. Fan curves are as per ASHRAE 90.1 using method 2 of table G3.1.3.15


Balaji Jaishankar, LEED AP BD+C, EMIT | Energy Engineer       [MEPC Logo] <http://www.mepcinc.com/>


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