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<p class=MsoNormal><span style='color:#1F497D'>I’m interested in this as well –
I know that in DOAS systems like active chilled beams, the primary air often
takes on a fairly large chunk of space latent cooling, and if this can’t be
passed on from the DOAS system to the space, then I don’t see how we can
believe the results.<o:p></o:p></span></p>
<p class=MsoNormal><span style='color:#1F497D'><o:p> </o:p></span></p>
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</span></b><b><span style='font-family:"Arial","sans-serif"'><ns0:PersonName><span
style='color:black'>James Hansen</span></ns0:PersonName></span></b><b><span
style='color:black'>, PE, LEED AP<o:p></o:p></span></b></p>
<p class=MsoNormal><b><span style='font-size:10.0pt;font-family:"Arial","sans-serif";
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<p class=MsoNormal><b><span style='font-size:10.0pt;font-family:"Tahoma","sans-serif"'>From:</span></b><span
style='font-size:10.0pt;font-family:"Tahoma","sans-serif"'>
equest-users-bounces@lists.onebuilding.org
[mailto:equest-users-bounces@lists.onebuilding.org] <b>On Behalf Of </b>Greg
Collins<br>
<b>Sent:</b> Thursday, April 08, 2010 4:39 PM<br>
<b>To:</b> equest-users@lists.onebuilding.org<br>
<b>Subject:</b> [Equest-users] Active Chilled Beam/Fan Coil System<o:p></o:p></span></p>
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<p class=MsoNormal><o:p> </o:p></p>
<p class=MsoNormal>Hi all,<o:p></o:p></p>
<p class=MsoNormal> <o:p></o:p></p>
<p class=MsoNormal>I’m working on modeling an active chilled beam system.
It consists of the chilled beams and a dedicated unit to provide primary air
(mainly ventilation air) to the beams at 55 degrees. I’ve modeled the
chilled beam system as a fan coil system, but am wondering about my options for
modeling the primary air. <o:p></o:p></p>
<p class=MsoNormal> <o:p></o:p></p>
<p class=MsoNormal>My question is this: If I attach the
primary/ventilation air unit to the fan coil system in the FC’s Outdoor Air tab
under “Outside Air from System” will the temperature of the air coming from
that unit have an impact on the load in the space? I have a ton of hours
at very low load during the winter months, and I want eQuest to use the 55
degree primary air as the first stage of cooling for the space and not “double
up” the cooling energy by cooling the 55 degree air and then not use that for
cooling in the zones.<o:p></o:p></p>
<p class=MsoNormal> <o:p></o:p></p>
<p class=MsoNormal>If anybody has some input, it would be appreciated. <o:p></o:p></p>
<p class=MsoNormal> <o:p></o:p></p>
<p class=MsoNormal><b><span style='font-size:10.0pt;font-family:"Arial","sans-serif"'>Greg
Collins</span></b><span style='font-size:12.0pt;font-family:"Times New Roman","serif"'><br>
</span><span style='font-size:10.0pt;font-family:"Arial","sans-serif"'>Design
Engineer / Energy Analyst</span><o:p></o:p></p>
<p class=MsoNormal><span style='font-size:10.0pt;font-family:"Arial","sans-serif"'>Mechanical
Department</span><span style='font-size:12.0pt;font-family:"Times New Roman","serif"'><br>
</span><span style='font-size:10.0pt;font-family:"Arial","sans-serif"'>LEED®
Accredited Professional</span><span style='font-size:12.0pt;font-family:"Times New Roman","serif"'><br>
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src="cid:image001.gif@01CAD73A.FBF605C0"
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