[Equest-users] Duct Insulation

[Keith Swartz]

Thanks, Rohini. That’s what I needed.

Keith Swartz, PE, BEMP, LEED AP
Senior Energy Engineer | Energy Center of Wisconsin | Madison.Chicago.Minneapolis
608.210.7123 | www.ecw.org<http://www.ecw.org/>

From: R B [mailto:slv3sat at gmail.com]
Sent: Monday, February 23, 2015 12:01 PM
To: Keith Swartz
Subject: Re: [Equest-users] Duct Insulation

Did you look at the output file itself - it gives the errors as
***ERROR***********************************************************************
             Duct losses are specified without a DUCT-LOSS-ZONE;
             No plenum exists for default duct losses.

 ***ERROR***********************************************************************
             In System: AHU-3                           the duct thermal
             losses based on the DUCT-DT, MIN-SUPPLY-T, and
             zone DESIGN-COOL-T are either excessive or
             impossible.  Check these values for consistency.

I have never used duct-loss keyword, so not sure what will fix it other than having a dedicated zone or plenum for it as it says in the errors.

Good luck.
-Rohini


On Mon, Feb 23, 2015 at 11:31 AM, Keith Swartz <kswartz at ecw.org<mailto:kswartz at ecw.org>> wrote:
Good morning, all,

I’m encountering a run-time error trying to model duct heat loss. Normally when eQUEST has a run-time error I can find the cause of the error by searching for “error” in the .BDL file, but not in this case. I am entering 2F for DUCT-DT to simulate the temperature rise of the supply air through the duct. I also tried raising the Zone Entering Min Supply Temp, but the error still occurred. Any suggestions?

The attached files are from version 3-65.

Thanks,
Keith Swartz, PE, BEMP, LEED AP
Senior Energy Engineer | Energy Center of Wisconsin | Madison.Chicago.Minneapolis
608.210.7123<tel:608.210.7123> | www.ecw.org<http://www.ecw.org/>


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