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Noa,<br>
<br>
eQUEST uses the DOE-2.2 building energy simulation program as its
simulation "engine". DOE-2 takes into consideration humidity quite
well, and in humid locations latent loads can be as much as 40% of
the total cooling loads. The air-conditioner is controlled with a
thermostat that turns it on when the indoor temperatures exceed the
scheduled cooling control temperature. You can also model natural
ventilation (i.e., opening windows in a residential building) or
mechanical ventilation (i.e., an economizer in a commercial
building) when the outside conditions are suitable. In other words,
you will be able to model the building and its air-conditioning
system in a very realistic way. As far as changing the R-value of
the walls, that's certainly easy to do, but keep in mind that DOE-2<br>
models the building surfaces in a more detailed method that requires
you to input the thermal characteristics layer by layer (thickness,
conductivity, and specific heat). As for modeling the
air-conditioner, DOE-2 allows input for the steady-state or design
efficiency that are then modified hour-by-hour using performance
curves based on the outside air conditions and part-load-ratio. If
you don't have<br>
this information, there are default efficiencies and performance
curves.<br>
<br>
Joe<br>
<pre class="moz-signature" cols="90">Joe Huang
White Box Technologies, Inc.
346 Rheem Blvd., Suite 108D
Moraga CA 94556
<a class="moz-txt-link-abbreviated" href="mailto:yjhuang@whiteboxtechnologies.com">yjhuang@whiteboxtechnologies.com</a>
<a class="moz-txt-link-abbreviated" href="http://www.whiteboxtechnologies.com">www.whiteboxtechnologies.com</a>
(o) (925)388-0265
(c) (510)928-2683
"building energy simulations at your fingertips"
</pre>
<br>
On 3/5/2013 7:33 AM, noa@gbwawa wrote:
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cite="mid:!&!AAAAAAAAAAAYAAAAAAAAALZ6QFNtKjhAvxlF%2FgqqokPCgAAAEAAAAKLVn7QmOaxDoj%2FutKYHj64BAAAAAA==@gbwawa.com"
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<p><span>Hi all, </span></p>
<p><span> </span></p>
<p><span>My name is Noa and I'm just starting to get to know
e-Quest. </span></p>
<p><span>I'm doing a research on Passive elements in
pre-schools and I have a few questions: </span></p>
<p><span>1. Is e-Quest taking into consideration the
relative humidity and does it have any effect on the
results of the simulation? </span></p>
<p><span>2. When dose an air conditioner starts to work? </span></p>
<p><span>3. Can I insert only the R value of a wall and get
good results? </span></p>
<p><span>4. is there a list of common values for pre-school
air conditioner? </span></p>
<p><span> </span></p>
<p><span>Thank you very much, </span></p>
<p><span> </span></p>
<p><span>Noa Hakak </span></p>
</div>
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<p><span> </span></p>
<p><span lang="HE">ðòä ç÷à÷</span><span> </span></p>
<p><span>WAWA</span><span></span><span></span><span><span></span><span></span>
<span lang="HE">ééòåõ ìúëðåï áðéä éøå÷ä </span></span><span>
</span></p>
<p><span>03-7325126</span><span lang="HE"> </span></p>
<p><span><img
src="cid:part1.00090803.00080201@whiteboxtechnologies.com"
alt="Description: Description: Description: Description:
Description: cid:image001.jpg@01CC3CA7.08EAEAC0"></span><span
lang="HE"> </span></p>
<p><span></span><span></span><span><span></span><span></span> </span><span
lang="HE"> </span></p>
<p><span lang="HE"><a moz-do-not-send="true"
href="http://www.gbwawa.com/"><span lang="EN-US">www.gbwawa.com</span></a>
</span></p>
<p><span lang="HE"><a moz-do-not-send="true"
href="mailto:noa@gbwawa.com"><span lang="EN-US">noa@gbwawa.com</span></a></span><span
lang="HE"> </span></p>
<p><span> </span></p>
<p><span> </span></p>
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