[Equest-users] [SPAM] First Building Performance Simulation

[David Bastow]

Mike,
 
If you have the as-built drawings, as you mentioned, then you should set
the model up using the actual building and equipment efficiency values
from your building drawings, that are confirmed by any site visits,
rather than using the default values in the program, which are typically
minimum energy code requirements, as you mention.  You should be able to
then do base model runs that approximate the existing building's actual
2-3 year average energy usage.  Of course, you might have to adjust your
model to get it to match the actual historical energy usage of the
building within 1-2%, unless you are not required to have that close of
accuracy.  Any way, yes, a 12 year old building likely would have higher
energy usage than one built meeting to today's energy code requirements,
that is, of course, unless the building 12 years ago was built to a
standard that was better than the present energy code. 
 
Regards,
David A. Bastow 
McClure Engineering, Inc.  
507 Main Avenue West
Post Office Box 1404
Twin Falls, Idaho   83303-1404
<mailto:dbastow at mcclure-engineering.com> 
Web Site:  www.mcclure-engineering.com
<http://www.mcclure-engineering.com/> 

________________________________

From: equest-users-bounces at lists.onebuilding.org
[mailto:equest-users-bounces at lists.onebuilding.org] On Behalf Of
mike584595 at aol.com
Sent: Thursday, March 18, 2010 2:19 PM
To: equest-users at lists.onebuilding.org
Subject: [SPAM][Equest-users] First Building Performance Simulation


All:
 
I have just performed my first simulation using eQuest.  I modeled an
existing building that is about 12 years old.  The project went well and
there were few unknowns because I had free access to the original
building plans.  I have a couple of questions now.  
 
If I understand correctly, the model developed by eQuest assumes a
minimum level of efficiency that is compliant with ASHRAE 90.1 or
California Title 24 (see page 4 of the Introductory Tutorial).  If this
is the case, then it is entirely possible (or expected) that the
electric or fuel consumption will be lower than actual if the original
building was not designed to be compliant with ASHRAE 90.1 or California
Title 24.  
 
Does everyone see it this way a well?
 
Thanks,
 
Mike Porter
Porter Brothers Inc.


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