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Zhe,<br>
lps_air is the volumetric flow rate of the air (in liters per
second) and rho_air_dry_in is the density (in kg/m3) of the dry air
at the heat pump inlet temperature.<br>
Best,<br>
David<br>
<br>
<br>
<div class="moz-cite-prefix">On 4/19/2013 11:11, Zhe Li wrote:<br>
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<p class="MsoNormal">Dear All,<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">Thank you for your time.<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">I am trying to understand how TRNSYS
calculates power output from this air-water heat pumps
(Type941).<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">I am stuck in a line which I don’t know
what the two terms are standing for? <o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">! Determine the dry air mass flow rate<o:p></o:p></p>
<p class="MsoNormal">Flow_air = lps_air*3.6*rho_air_dry_in <o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">Could somebody let me know what are the <b>lps_air</b>
and <b>rho_air_dry_in </b>standing for?<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">I hope I did not break TRNSYS source code
rule by asking this question. <o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">Thank you for your help in advance.<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">Zhe Li <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
<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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