[Equest-users] 90.1 and Appendix A Materials

[Paul Riemer]

Seth,
My point was simply that someone at ASHRAE considered the DOE-2.1e library of materials suitable for reference and if a reviewer challenged my use of the DOE2 library I would point that out as well as showing that they worked reasonably.

Nick wondered about an inp snip it file of the constructions but I don't think the ASHRAE DOE-2 files have many of the constructions and I am not aware of any public ones.

I do like the approach to Import snip its of inp files of things like constructions, layers, glass types, schedules, etc.  They still have to follow the inp file syntax but once you have a good working one you can import it for multiple projects.
Of course the value all depends on how long it takes you to make them and how many times you can reuse them.
Editing and managing library files has other risks and rewards.

Paul Riemer
Dunham
Celebrating 50 years of service





From: Seth P. Spangler [mailto:sspangle at rmf.com]
Sent: Tuesday, April 27, 2010 7:26 AM
To: Paul Riemer; equest-users at lists.onebuilding.org
Cc: Seth P. Spangler
Subject: RE: [Equest-users] 90.1 and Appendix A Materials

Paul,

I've been browsing through the ASHRAE DOE-2 files since receiving your email. I believe I have been following the same rabbit trail that Nick has so it would be great to have canned constructions. Can you explain the best method for importing the ASHRAE constructions into a model? I assume the edit must be made in the INP file. I typically try to avoid editing the INP file since my knowledge of the "code" behind eQuest is limited.

Thanks

Seth Spangler, LEED® AP
Project Engineer

RMF Engineering, Inc
Ph: (843) 971-9639 ext:1497
Fax: (843) 971-9641
sspangle at rmf.com
From: equest-users-bounces at lists.onebuilding.org [mailto:equest-users-bounces at lists.onebuilding.org] On Behalf Of Paul Riemer
Sent: Monday, April 26, 2010 5:00 PM
To: 'Nick Caton'; equest-users at lists.onebuilding.org
Subject: Re: [Equest-users] 90.1 and Appendix A Materials

Nick,
The DO2.1e input files available as part of the 90.1 User's Manual rely on the DOE2 library of construction materials.

Paul Riemer
Dunham


From: equest-users-bounces at lists.onebuilding.org [mailto:equest-users-bounces at lists.onebuilding.org] On Behalf Of Nick Caton
Sent: Monday, April 26, 2010 3:43 PM
To: equest-users at lists.onebuilding.org
Subject: [Equest-users] 90.1 and Appendix A Materials

Has anyone invested the time to create or otherwise stumbled across an *.inp file that contains the materials defined in Appendix A9 for easy import/use?

I had a model reviewer (not USGBC) who was unsatisfied with the material thermal properties in the default DOE2 library.  I ultimately went through the enormously entertaining exercise of defining materials with matching prescriptive R-values, while still using library data to retain appropriate thermal massing properties to avoid construction errors from weightless constructions.

This was an isolated case, but I could see such a file being a very handy resource for most modelers, particularly if it contained the contents of Tables A9.2A and 9.2B to pull the effective insulation/framing properties into our custom construction layers.

If this is flying over anyone's head who's interested, attached is a partial example of what I'm talking about - if you click File à Import File... and navigate to this file, you'll have a couple defined materials ready to access for your project within seconds - conceivably everything within 90.1 if someone had the time to invest...

On a related note... and I should have asked before, but does Section A9.2 possibly exempt the rest of Section A9 for eQuest users who rely on unmodified default library entries to define their custom envelope constructions?

~Nick


[cid:image001.jpg at 01CAE5DC.D6077820]

NICK CATON, E.I.T.
PROJECT ENGINEER
25501 west valley parkway
olathe ks 66061
direct 913 344.0036
fax 913 345.0617
Check out our new web-site @ www.smithboucher.com

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