[Equest-users] Creating a Baseline Model

[Nick Caton]

To add to the discussion on a stepped back and more general level - the
phrase "baseline model" doesn't mean anything specifically by itself.
The decision of whether you're supposed to use 90.1 to your define your
baseline (or some other baseline standard criteria, or the existing
building, and/or your own sole judgement) is determined by the nature of
the project and why you're performing energy modeling in the first
place.

 

Pre-made baselines, in the context of 90.1, do not exist as they're
unique to every proposed design.  If you're looking for a predetermined
baseline performance based on energy consumption, you might consider
using a tool like Energy Star or similar resources that offer "average"
EUI figures for various building types/sizes/locations.

 

~Nick

 

 

 

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 

 

From: equest-users-bounces at lists.onebuilding.org
[mailto:equest-users-bounces at lists.onebuilding.org] On Behalf Of Pasha
Korber-Gonzalez
Sent: Thursday, April 29, 2010 1:39 AM
To: Ju-Yeon Julie Shin
Cc: equest-users at lists.onebuilding.org
Subject: Re: [Equest-users] Creating a Baseline Model

 

There are a couple of ways to do what you are asking.  

*	Start by creating your proposed building design with all of the
ECM features and proposed HVAC systems
*	For most of your ECM's that are straight forward you can use
parametric runs under the TOOLS menu in DDedit mode to 'back-out' the
proposed performance down to the baseline performance values.  Basic
things would include changing insulation values, changing glass
u-values, overhangs, LPD values, equipment efficiencies, etc.  The
results of your complied parametric runs will represent your baseline
building performance results.
*	OR  (I use this method when my proposed HVAC systems are
different from the required baseline HVAC systems.)  After you have
created your proposed model and have it calibrated to debug it and
reduce your throttling hours out of range to acceptable levels then do a
"Save As" of your proposed file to create an identical file that you
will adjust to represent your baseline performance values.  Using this
method allows you to re-input the baseline HVAC systems in the main
eQuest systems & plant screens rather than trying to change your systems
via the parametric runs tool.  I then go back and reinput all of the
other design characteristics to match my baseline values that I am
using.
*	Now I have two separate files for the baseline & proposed cases,
but I am assured the initial inputs of the building (area, shape, window
placement, etc.) are identical for both building models.  The only
variances are the ones I have made to represent thermal performance
values.
*	By reducing the performance values in your basline model you
will see the annual energy consumption increase above the proposed model
results provided that your simulation is working correctly.

pasha

 

 

2010/4/29 Ju-Yeon Julie Shin <juyeon519 at hotmail.com>

Hi all,
 
1) I need to make my proposed model use energy less than 300kWh/m2/yr,
and 
2) I have to indicate how much energy the proposed model can save
compared to a baseline model.
 
I am not sure how to build a baseline model.
To create a baseline model, do I have to follow all the materials on
ASHRAE 90.1 and change all the setting on eQUEST SD wizard while keeping
energy consumption of 300kWh?
Or is there a baseline already made?
 
Does anyone know how to do the above while satisfying 1) and 2)?
 
Thank you for help.

  

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