[Equest-users] Window6 eQUEST Results

[Dahlstrom, Aaron]

Otto -

Re: baseline strategy - what you describe used to be our strategy as well (selecting the window that was closest from the library).

However, on LEED projects, a number of reviewers took issue with that approach, and requested that our models match the u-val and SHGC of the standard exactly.

We often define baseline windows using the simplified method to match the standard.

One of the caveats with the "close as possible" library approach is that ASHRAE hasn't released specific spectral / angular performance curves for the baseline glass ...

Aaron Dahlstrom , PE, LEED(r) AP
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From: equest-users-bounces at lists.onebuilding.org [mailto:equest-users-bounces at lists.onebuilding.org] On Behalf Of Otto Schwieterman
Sent: Thursday, April 28, 2011 10:33 AM
To: Bruce Easterbrook
Cc: equest-users at lists.onebuilding.org
Subject: Re: [Equest-users] Window6 eQUEST Results

Thanks Bruce,

I ended up selecting a window in the eQUEST library that was very similar to the results that I got from Window6.

What are others doing for creating their windows in eQUEST? Are you selecting the window from the library that is the most similar to the window that you are using? Are you importing the glass from Window6 or are you creating the window in eQUEST?

What are you using for the ASHRAE 90.1 baseline window? I typically select the window from the library that is the closest to the baseline window values.

From: Bruce Easterbrook [mailto:bruce5 at bellnet.ca]
Sent: Thursday, April 28, 2011 10:28 AM
To: Otto Schwieterman
Cc: equest-users at lists.onebuilding.org
Subject: Re: [Equest-users] Window6 eQUEST Results

eQuest treats the glass and the frame as separate items.  They are totally different thermodynamically.  There is much more to window glass than just insulation value.  I normally create windows and frames inside eQuest.  You could then just check with window6 to confirm your overall value.  I don't believe many people are having success importing window data from other programs.
Bruce Easterbrook P.Eng.
Abode Engineering

On 28/04/2011 09:23 AM, Otto Schwieterman wrote:
Hello everyone,

I created a window using Window6 and the results appear to be correct but when I import it into eQUEST the frame does not appear to import. The total window U-Value in eQUEST is 0.25 which makes sense if it does not include the frame but the results from Window6 shows a complete U-Value of 0.434.

Any help is appreciated.

Otto



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