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<div class="moz-cite-prefix">If this is actual equipment, not a
theoretical study, it would be nice if the equipment manufacturers
had some advice on modeling. I know that Climate Master tried to
do this for a while on their Ground Source Heat Pumps. All gone
now I think.<br>
<br>
But if it's real equipment, calling the manufacturer and saying
"I'm trying to model your equipment in EQuest" might at least give
them the vague hint that EQuest exists and is used for things that
might make their equipment more easily specified.<br>
<br>
I mean, everybody gives AutoDesk details now, right?<br>
<br>
<br>
<br>
OK, I'm dreaming, I know...<br>
<br>
<br>
<br>
<pre class="moz-signature" cols="72">Robert Wichert P.Eng. LEED AP BD&C
+1 916 966 9060
FAX +1 916 966 9068
===============================================
</pre>
On 3/27/2014 9:21 AM, Matt Hein wrote:<br>
</div>
<blockquote
cite="mid:CAFihwd9bbXreMuMLaoxRG-T7kJZCsquazWvZJWJFoq_cBEbHdA@mail.gmail.com"
type="cite">
<div dir="ltr">In the grand scheme of things it's all the same
(air movement, heat source, heat rejection, pumping, and
controls). The devil is in the (eQuest configuration) details.
<div><br>
</div>
<div>I think I would use a packaged single-zone with reheat
(SZRH) and adjust the curves and other performance parameters
to try and match the actual FCU. Coil placement and other
attributes are different but your best efforts (and good
documentation) are all you can give. </div>
<div><br>
</div>
<div>Anyone else have suggestions?</div>
<div class="gmail_extra"><br clear="all">
<div>- Matt Hein<br>
</div>
<br>
<br>
<div class="gmail_quote">On Thu, Mar 27, 2014 at 10:35 AM,
Nick Patsos <span dir="ltr"><<a moz-do-not-send="true"
href="mailto:nick.patsos@gmail.com" target="_blank">nick.patsos@gmail.com</a>></span>
wrote:<br>
<blockquote class="gmail_quote" style="margin:0 0 0
.8ex;border-left:1px #ccc solid;padding-left:1ex">
<div dir="ltr">Hi Matt,
<div><br>
</div>
<div>thanks for your answer. I have set an exhaust fan
at zone level but the problem is that still the
Outdoor air heat recovery is not enabled under the FCU
system parameters.</div>
<div>
<br>
</div>
<div>Any further thoughts ?</div>
<div class="">
<div><br>
</div>
<div>Best regards</div>
<div>Nick Patsos</div>
<div>Mechanical Engineer</div>
</div>
<div>
<div class="h5">
<div class="gmail_extra"><br clear="all">
<div>
<div>
<div
style="margin-top:0px;margin-right:0px;margin-bottom:8px;margin-left:185px">
<p
style="margin-top:0px;margin-right:0px;margin-bottom:0px;margin-left:0px"><br>
</p>
</div>
</div>
</div>
<div class="gmail_quote">On 27 March 2014 15:50,
Matt Hein <span dir="ltr"><<a
moz-do-not-send="true"
href="mailto:heinm04@gmail.com"
target="_blank">heinm04@gmail.com</a>></span>
wrote:<br>
<blockquote class="gmail_quote" style="margin:0
0 0 .8ex;border-left:1px #ccc
solid;padding-left:1ex">
<div dir="ltr">Nick,
<div><br>
</div>
<div>eQuest limits the HVAC systems for a
thermal zone to (1) air-side system that
may have reheat and/or supplemental heat,
(1) baseboard heat source, (1) exhaust
system. To model the VAM system you need
to create an equivalent system to the
overall systems operating in the thermal
zone.</div>
<div><br>
</div>
<div>I think you can model your system by
creating an exhaust fan (and schedule) for
the zone and incorporating the HEX into
the FCU using Outdoor Air Heat Recovery.
You will need to make some adjustments to
system performance (e.g. kW/cfm) to make
sure overall performance of the simulated
system and actual system align.</div>
</div>
<div class="gmail_extra"><br clear="all">
<div>- Matt Hein<br>
</div>
<br>
<br>
<div class="gmail_quote">
<div>
<div>On Wed, Mar 26, 2014 at 10:29 AM,
Nick Patsos <span dir="ltr"><<a
moz-do-not-send="true"
href="mailto:nick.patsos@gmail.com"
target="_blank">nick.patsos@gmail.com</a>></span>
wrote:<br>
</div>
</div>
<blockquote class="gmail_quote"
style="margin:0 0 0 .8ex;border-left:1px
#ccc solid;padding-left:1ex">
<div>
<div>
<div dir="ltr">Hello everyone,
<div><br>
</div>
<div>I'm trying to model in eQuest
a ventilation air machine (VAM),
which is a simple plate heat
exchanger with an OA fan and an
exhaust fan.</div>
<div><br>
</div>
<div>How can it be modelled to
operate with an FCU type of
system? (VAM for fresh air heat
recovery and FCU for
cooling/heating).</div>
<div><br>
</div>
<div>Best regards</div>
<span><font color="#888888">
<div><br>
</div>
<div>Nick Patsos</div>
<div>Mechanical Engineer
</div>
</font></span></div>
<br>
</div>
</div>
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