[Equest-users] HVAC Loads Based on eQuest

[Hernandez, Arturo]

You are correct. Therefore one would just have to schedule that to be off all the time in HDD. So are there any other any concerns with using eQuest? Is the answer simply: It is easier to get the load calculations from Trane Trace? 

 

From: Howe, Timothy [mailto:Timothy.Howe at stantec.com] 
Sent: Thursday, November 05, 2009 10:32 AM
To: Hernandez, Arturo; James Hess; equest-users at lists.onebuilding.org
Subject: RE: [Equest-users] HVAC Loads Based on eQuest

 

Not sure if that is accurate.  If you schedule your internal loads HDD to be zero in each hour, then the winter peak loads should not include these values/gains.

 

 

Timothy Howe, MS, LEED® AP
Mechanical Engineer
Stantec
2060 Brighton-Henrietta Town Line Road
Rochester NY 14623-2792
Ph:   (585) 413-5347
Fx:   (585) 272-1814
Cell: (585) 330-8681

stantec.com <http://www.stantec.com/>  

 

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From: equest-users-bounces at lists.onebuilding.org [mailto:equest-users-bounces at lists.onebuilding.org] On Behalf Of Hernandez, Arturo
Sent: Thursday, November 05, 2009 11:27 AM
To: James Hess; equest-users at lists.onebuilding.org
Subject: Re: [Equest-users] HVAC Loads Based on eQuest

I guess the problem is when calculating loads you may want to be a little more conservative with you internal loads and when you are doing energy modeling you want to be more exact with your assumptions. In addition, my understanding is that internal loads contribute to space heating in eQuest load calcs. Which something that many engineers would not feel comfortable with. 

 

ARTURO HERNANDEZ, Mechanical Engineering

 

From: equest-users-bounces at lists.onebuilding.org [mailto:equest-users-bounces at lists.onebuilding.org] On Behalf Of James Hess
Sent: Thursday, November 05, 2009 10:03 AM
To: equest-users at lists.onebuilding.org
Subject: Re: [Equest-users] HVAC Loads Based on eQuest

 

That's the way are offices typically do it as well (i.e. Trace for loads, eQuest for energy).

 

I have found that when both programs use the same inputs for envelope, lighting, misc equipment, etc., the two programs produce results that are pretty close.

 

 

Regards,

 

James A.  Hess, PE, CEM

Energy Engineer

TME, Inc.

Little Rock, AR

ph   501-666-6776

cell  501-351-4667

jhess at tmecorp.com <mailto:email at tmecorp.com> 

 

 

From: equest-users-bounces at lists.onebuilding.org [mailto:equest-users-bounces at lists.onebuilding.org] On Behalf Of Hernandez, Arturo
Sent: Thursday, November 05, 2009 9:13 AM
To: equest-users at lists.onebuilding.org
Subject: [Equest-users] HVAC Loads Based on eQuest

 

Just wondering... Has anyone based their HVAC design on eQuest results? Typically we us Trane Trace for load calcs and do our energy models in eQuest. However, this questions was brought up in our office. I just wanted to see what everyone thought of this matter.

 

Arturo Hernandez

 

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