[Equest-users] One question about eQUEST

Paul Diglio paul.diglio at sbcglobal.net
Thu Sep 19 05:24:23 PDT 2013


Vikram:

FYI; Jeff Hirsh responded to a question that I posed and stated that eQuest does not support an OA-from systems with an ERV.  While I find it possible to add one, the airflow and recovery through the ERV do not make sense.

Have you found a work-around?

 
Paul Diglio


87 Fairmont Avenue
New Haven, CT  06513
203-415-0082


________________________________
 From: "Sami, Vikram" <vikram.sami at zgf.com>
To: "Sami, Vikram" <vikram.sami at zgf.com>; James Mathias <mathias at engr.siu.edu>; "equest-users at lists.onebuilding.org" <equest-users at lists.onebuilding.org> 
Sent: Wednesday, September 18, 2013 3:03 PM
Subject: Re: [Equest-users] One question about eQUEST
 


 
Ok here goes – copying the group in case anyone else has better feedback
 
At first glance here’s a couple of impression. I don’t do too many single family homes, so my mental validation might be off. 
 
·         The fan load is high compared to everything else. Partly because everything else is really low. Your annual EUI is 13.2 KBTU/ft2-yr – that’s very low – even for a house. This makes sense with a GSHP. 
·         1” static pressure on your fans might be high for a residential terminal unit that’s not ducted. 
·         PVVT might not be the best system choice to go with a ground loop – try a water loop heat pump. You will still have fan energy, but with a terminal unit (as opposed to a ducted one) you should see that go down. 
·         The heat recovery system for the ventilator is a more complex matter that will require you to go well beyond the SD wizard. You will need to model a DOAS with energy recovery. 
 
 
 
 
Vikram Sami
Associate Partner   ZGF ARCHITECTS LLP
T 206.521.3509 E vikram.sami at zgf.com
925 Fourth Avenue, Suite 2400 
Seattle, WA 98104 
 
From:equest-users-bounces at lists.onebuilding.org [mailto:equest-users-bounces at lists.onebuilding.org] On Behalf Of Sami, Vikram
Sent: Tuesday, September 17, 2013 3:17 PM
To: James Mathias; equest-users at lists.onebuilding.org
Subject: Re: [Equest-users] One question about eQUEST
 
James,
 
What is your system selection? Also – could you attach your inp file? 
 
Vikram Sami
Associate Partner   ZGF ARCHITECTS LLP
T 206.521.3509 E vikram.sami at zgf.com
925 Fourth Avenue, Suite 2400 
Seattle, WA 98104 
 
From:equest-users-bounces at lists.onebuilding.org [mailto:equest-users-bounces at lists.onebuilding.org] On Behalf Of James Mathias
Sent: Monday, September 16, 2013 3:04 PM
To: equest-users at lists.onebuilding.org
Subject: [Equest-users] One question about eQUEST
 
Hello,
 
I have one, I think fairly simple questions about eQUEST.
 
1. My simulation shows quite a bit of energy used by ventilation fans but it is for a simulation of a house that does not have ventilation fans. Where can I tell eQUEST there are no ventilation fans? I do actually have an heat recovery ventilation system but it runs for about only 2 hours each day. Does eQUEST have the ability to simulate that also?
 
James Mathias, Ph.D., P.E.
Associate Professor
Mechanical Engineering and Energy Processes
Mailcode 6603
ENGR E-024, 1230 Lincoln Drive
Carbondale, IL 62901
618-453-7016, -7658 fax
 

-- 
This message has been scanned for viruses and 
dangerous content by MailScanner, and is 
believed to be clean. 
 

________________________________
 
The contents of this email and any attachments to it contain confidential and/or legally privileged information from Zimmer Gunsul Frasca Architects LLP or its affiliates. If you are not the intended recipient, or an employee or agent responsible for delivering this message to the intended recipient, be aware that any disclosure, copying, distribution, or use of the information contained herein is strictly prohibited. If you received this transmission in error, please contact the sender and destroy the material in its entirety, whether in electronic or hard copy format.
________________________________
 The contents of this email and any attachments to it contain confidential and/or legally privileged information from Zimmer Gunsul Frasca Architects LLP or its affiliates. If you are not the intended recipient, or an employee or agent responsible for delivering this message to the intended recipient, be aware that any disclosure, copying, distribution, or use of the information contained herein is strictly prohibited. If you received this transmission in error, please contact the sender and destroy the material in its entirety, whether in electronic or hard copy format.
 
_______________________________________________
Equest-users mailing list
http://lists.onebuilding.org/listinfo.cgi/equest-users-onebuilding.org
To unsubscribe from this mailing list send  a blank message to EQUEST-USERS-UNSUBSCRIBE at ONEBUILDING.ORG
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://lists.onebuilding.org/pipermail/equest-users-onebuilding.org/attachments/20130919/fec9ab94/attachment-0002.htm>


More information about the Equest-users mailing list