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Mattias,<br>
The source and load sides remain the same whether the heat pump is
in heating or cooling mode. The load side is defines as the side
whose temperature you are trying to control. The source side absorbs
energy from its surroundings when the heat pump is in heating mode
and rejects energy to its surroundings when the heat pump is in
cooling mode.<br>
kind regards,<br>
David<br>
<br>
<br>
<div class="moz-cite-prefix">On 3/26/2015 4:28 AM, Mattias Ericsson
wrote:<br>
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<p class="MsoNormal">Dear TRNSYS users!<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal"><span lang="EN-GB">I am creating my own
performance files for the TESS Type 927 Water-Water heat
pump.<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-GB"><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="EN-GB">In the sample files
“source side” and “load side” is used to define the two
sides of the heat pump. In heating mode I assume the source
side is the evaporator and the load side is the condenser
but is the situation reversed in cooling mode? i.e. the load
side is the evaporator and the source side is the condenser?
In the sample files this seems to be the situation judging
by the temperatures used.
<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-GB"><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="EN-GB">However when defining
the component one also has to give the model a “rated source
flow rate” and “rated load flow rate” as well as fluid
properties on source and load side respectively. This is
where I got confused since it does not say if it is in
cooling or heating mode. <o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-GB"><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="EN-GB">Best regards<o:p></o:p></span></p>
<p class="MsoNormal"><i><span style="mso-fareast-language:SV">Mattias
Ericsson<o:p></o:p></span></i></p>
<p class="MsoNormal"><span style="color:#1F497D"><o:p> </o:p></span></p>
<p class="MsoNormal"><o:p> </o:p></p>
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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
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