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    <p>Ilyas,<br>
    </p>
    <p>  Npipes is the number of parallel paths through the radiator.
      Please refer to 06-HVACLibraryMathematicalReference.pdf located in
      ..\TrnsysXX\Tess Models\Documentation for an explanation of how
      nPipes affects the model.</p>
    <p>kind regards,</p>
    <p> David</p>
    <p><br>
    </p>
    <br>
    <div class="moz-cite-prefix">On 06/04/2018 08:17, Ilyas KHELIFA
      KERFAH via TRNSYS-users wrote:<br>
    </div>
    <blockquote type="cite"
cite="mid:CWXP265MB0374E484186CD8D8E53F67D0E0670@CWXP265MB0374.GBRP265.PROD.OUTLOOK.COM">
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        <div><span style="font-family: "Times New Roman",
            Times, serif;">Hello,</span></div>
        <div><span style="font-family: "Times New Roman",
            Times, serif;"><br>
          </span></div>
        <div><span style="font-family: "Times New Roman",
            Times, serif;">I'm working on the type 1231 of the TRNSYS
            library (radiator model).</span></div>
        <div><span style="font-family: "Times New Roman",
            Times, serif;">However in their parameters, I see Npipes
            (Number of pipes in unit).</span></div>
        <div><span style="font-family: "Times New Roman",
            Times, serif;"><br>
          </span></div>
        <div><span style="font-family: "Times New Roman",
            Times, serif;">Is it the number of vertical elements in the
            radiator or verticlals and horizontals?</span></div>
        <div><span style="font-family: "Times New Roman",
            Times, serif;"><br>
          </span></div>
        <div><span style="font-family: "Times New Roman",
            Times, serif;">Thank you.</span></div>
        <div><span style="font-family: "Times New Roman",
            Times, serif;"><br>
          </span></div>
        <div><span style="font-family: "Times New Roman",
            Times, serif;">Regards.</span></div>
        <div id="Signature">
          <div id="divtagdefaultwrapper" dir="ltr"
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            <div style=""><span style="font-family:"Times New
                Roman",Times,serif; font-size:12pt;
                line-height:22.72px; background-color:rgb(255,255,255);
                color:rgb(0,0,0)">Ilyas.</span></div>
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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
<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>
<a class="moz-txt-link-freetext" href="http://www.trnsys.com">http://www.trnsys.com</a></pre>
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