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<p class=MsoPlainText>Hi Jason,<o:p></o:p></p>
<p class=MsoPlainText><o:p> </o:p></p>
<p class=MsoPlainText>Take a look at the attached paper. I believe this
is what the wizard does when creating slab on grade and underground floors.
The wizard creates layers that make up an equivalent construction to account
for the perimeter heat loss. When zones have different perimeter lengths,
the equivalent constructions and R-values are going to vary. Someone
please correct me if I am wrong.<o:p></o:p></p>
<p class=MsoPlainText><o:p> </o:p></p>
<p class=MsoPlainText>John<o:p></o:p></p>
<p class=MsoPlainText><o:p> </o:p></p>
<p class=MsoPlainText>John T. Forester, LEED AP BD+C<o:p></o:p></p>
<p class=MsoPlainText>Demand Management Institute<o:p></o:p></p>
<p class=MsoPlainText>35 Walnut Street<o:p></o:p></p>
<p class=MsoPlainText>Wellesley, MA 02481<o:p></o:p></p>
<p class=MsoPlainText>Phone: 781 431 1100 x14<o:p></o:p></p>
<p class=MsoPlainText>Fax: 781 431 1109<o:p></o:p></p>
<p class=MsoPlainText>email: jforester@dmiinc.com<o:p></o:p></p>
<p class=MsoPlainText>web: www.dmiinc.com<o:p></o:p></p>
<p class=MsoPlainText><o:p> </o:p></p>
<p class=MsoPlainText>-----Original Message-----<br>
From: equest-users-bounces@lists.onebuilding.org
[mailto:equest-users-bounces@lists.onebuilding.org] On Behalf Of Robinet, Jason<br>
Sent: Thursday, February 25, 2010 10:53 AM<br>
To: equest-users@lists.onebuilding.org<br>
Subject: [Equest-users] Slab Floors</p>
<p class=MsoPlainText><o:p> </o:p></p>
<p class=MsoPlainText>Hello,<o:p></o:p></p>
<p class=MsoPlainText><o:p> </o:p></p>
<p class=MsoPlainText>I have noticed that when entering detailed mode from the
design wizard that equest has put together the layers for underground floors.<o:p></o:p></p>
<p class=MsoPlainText><o:p> </o:p></p>
<p class=MsoPlainText>I have selected concrete floor on ground with no
insulation in the wizard. What I have noticed is that Equest will produce
layers using some custom materials for this slab. The material will be
called something like "EL1 UFMat (G.NE1.U2.M1)". this material
will have some arbitrary R value. it seems that Equest will generate
several different layers for different spaces using different materials like
this. The materials will have different arbitrary R values.<o:p></o:p></p>
<p class=MsoPlainText><o:p> </o:p></p>
<p class=MsoPlainText>My question is what are these supposed to represent, and
should they be left there for accurate simulation? Also wondering why the R
values are all different.<o:p></o:p></p>
<p class=MsoPlainText><o:p> </o:p></p>
<p class=MsoPlainText><o:p> </o:p></p>
<p class=MsoPlainText><o:p> </o:p></p>
<p class=MsoPlainText>Thank you,<o:p></o:p></p>
<p class=MsoPlainText><o:p> </o:p></p>
<p class=MsoPlainText>Jason Robinet<o:p></o:p></p>
<p class=MsoPlainText>Ameresco Canada<o:p></o:p></p>
<p class=MsoPlainText>jrobinet@ameresco.com<mailto:jrobinet@ameresco.com><o:p></o:p></p>
<p class=MsoPlainText><o:p> </o:p></p>
<p class=MsoPlainText><o:p> </o:p></p>
<p class=MsoPlainText><o:p> </o:p></p>
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