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<font size="+1"><tt>I find the best way for me to model a DOAS is to
use the heat recovery option in the HVAC system parameters under
the outdoor air tab. Proportion the OA air for each zone and
the sum will be your DOAS. This way you are dealing with the
return and supply air for each zone. There are lots of
variables to tune your air and keep track of the heating and
cooling required.</tt> Sure you are dealing with the air flows
piecemeal but it is much more accurate and pretty simple to sum up
at the end.<br>
Bruce Easterbrook P.Eng.<br>
Abode Engineering<br>
</font><br>
On 09/04/2012 11:51 PM, Jiao, Joey wrote:
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<p class="MsoPlainText">Hi, Jaya.<o:p></o:p></p>
<p class="MsoPlainText">As I know, DOAS can't simulation a
system with heat recovery. I made some test model before, it
seems the system calculate the return air volume and
temperature only include its own zone. I used single zone
with reheat as the test system.<o:p></o:p></p>
<p class="MsoPlainText">But I made the test a long time ago,
can't sure about it .If you want to check it , please make a
simple model and check the SIM report to confirm it .<o:p></o:p></p>
<p class="MsoPlainText">Anyone else put some light on it? <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">Joey<span style="color:#1F497D"><o:p></o:p></span></p>
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1.0pt;padding:3.0pt 0cm 0cm 0cm">
<p class="MsoNormal"><b><span
style="font-size:10.0pt;font-family:宋体" lang="ZH-CN">发
件人</span></b><b><span
style="font-size:10.0pt;font-family:宋体">:</span></b><span
style="font-size:10.0pt;font-family:宋体"> Jaya
Mukhopadhyay [<a class="moz-txt-link-freetext" href="mailto:jaya_mukho@yahoo.com">mailto:jaya_mukho@yahoo.com</a>] <br>
<b><span lang="ZH-CN">发送时间</span>:</b> 2012<span
lang="ZH-CN">年</span>4<span lang="ZH-CN">月</span>9<span
lang="ZH-CN">日</span> 12:47<br>
<b><span lang="ZH-CN">收件人</span>:</b>
<a class="moz-txt-link-abbreviated" href="mailto:equest-users@lists.onebuilding.org">equest-users@lists.onebuilding.org</a><br>
<b><span lang="ZH-CN">主题</span>:</b> [Equest-users] Help
on Modeling DOAS in eQUEST<o:p></o:p></span></p>
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<p class="MsoNormal"><o:p> </o:p></p>
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<p class="MsoNormal" style="background:white"><span
style="font-size:10.0pt;font-family:"Arial","sans-serif";color:black">Hello:<o:p></o:p></span></p>
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<p class="MsoNormal" style="background:white"><span
style="font-size:10.0pt;font-family:"Arial","sans-serif";color:black">Can
anybody share their experiences on modeling the DOAS
using eQUEST?<o:p></o:p></span></p>
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<p class="MsoNormal" style="background:white"><span
style="font-size:10.0pt;font-family:"Arial","sans-serif";color:black">I
am especially not clear about whether it is possible to
model energy recovery, given the fact that we are
defining a dummy zone with no loads.<o:p></o:p></span></p>
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<p class="MsoNormal" style="background:white"><span
style="font-size:10.0pt;font-family:"Arial","sans-serif";color:black">Thanks<o:p></o:p></span></p>
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<p class="MsoNormal" style="background:white"><span
style="font-size:10.0pt;font-family:"Arial","sans-serif";color:black">Jaya
Mukhopadhyay<o:p></o:p></span></p>
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