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Talib<br>
Without looking at your project file, it isn't really possible to
know what the problem might be. If the tank temperature is going
negative, I would imagine that there is a cold stream of water
coming into the tank (perhaps coming back from the chiller under
low-load situations?) To investigate, use an online plotter and plot
the temperature and flow rate into and out of all the ports in the
tank; see if it is obvious which one is the cause of the problem. As
for the collector, again, plot the flow rate and temperature into
and out of each device in the flow loop. Look also at your controls;
it may be that the collector never gets hot enough for the collector
pump to turn on or it may be that the system is operating only on
its auxiliary heat and that the collector just isn't contributing
much to the overall performance. <br>
Kind regards,<br>
David<br>
<br>
<br>
<br>
<div class="moz-cite-prefix">On 1/2/2013 08:28, Talib Ahmadu wrote:<br>
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<div>Dear users</div>
<div>In my model of an absorption cooling for a multizone
office, I have some issues which i would like to get
clearification from users.</div>
<div>I considered the system to be working by checking the
zone temperatures to see if they have dropped in
temperature, is this correct? (temperatures dropped).</div>
<div>Secondly, i tried to vary the collector area to see
the effect on the performance, but it stays thesame even
with a collector area of zero, why is this so?</div>
<div>Thirdly, i see negative values in the hot storage
tank temperature.</div>
<div>Positive responses will be appreciated.</div>
<div>Thanks.</div>
<div>Talib</div>
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<pre class="moz-signature" cols="72">--
***************************
David BRADLEY
Principal
Thermal Energy Systems Specialists, LLC
22 North Carroll Street - suite 370
Madison, WI 53703 USA
P:+1.608.274.2577
F:+1.608.278.1475
<a class="moz-txt-link-abbreviated" href="mailto:d.bradley@tess-inc.com">d.bradley@tess-inc.com</a>
<a class="moz-txt-link-freetext" href="http://www.tess-inc.com">http://www.tess-inc.com</a>
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