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    Su,<br>
      I think the device that you are trying to model is a heat pump
    that has a variable speed compressor in it. The compressor slows
    down and speeds up in order to maintain the desired outlet
    temperature. I was faced with a similar device this past summer
    although this one was a heat pump water heater (air on the source
    side, water on the load side). I had to modify Type921 to get the
    part load operation in there. I think you would probably have to do
    the same starting with Type927.<br>
    Best,<br>
     David<br>
    <br>
    <br>
    <div class="moz-cite-prefix">On 10/11/2012 19:52, Su Huang wrote:<br>
    </div>
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cite="mid:A81AC26ED8597E4D809C32A27E2BC91B498400F7@CH1PRD0310MB369.namprd03.prod.outlook.com"
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      <div style="direction: ltr;font-family: Arial;color:
        #000000;font-size: 10pt;">Dear All,
        <div><br>
        </div>
        <div>I am currently simulating GSHP systems, how can I make the
          type 927 Water-water source heat pump part-load operation?
          Such as the constant load outlet fluid temperature?</div>
        <div><br>
        </div>
        <div>Cheers,</div>
        <div>Su <br>
          <div><br>
            <div style="font-size:13px; font-family:Tahoma">
              <p> </p>
              <font color="#993366" face="Arial" size="2">
                <hr>
                <font color="#3366ff">Su Huang </font></font>
              <p dir="ltr" style="margin-right:0px"><font
                  color="#3366ff" face="Arial" size="2">Ph.D Candidate
                  in Sustainable Buildings Research Centre
                </font></p>
              <p><font color="#3366ff" face="Arial" size="2">University
                  of Wollongong  </font></p>
              <p><font face="Arial" size="2"><font color="#3366ff">Email:
                  </font><font color="#3366ff"><a moz-do-not-send="true"
                      href="mailto:sh377@uowmail.edu.au">sh377@uowmail.edu.au</a></font></font></p>
              <p> </p>
              <p> </p>
              <p> </p>
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    <br>
    <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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