<div>Didier,</div>
<div> There is an equation in Type460 for the air density as a function of the air pressure:</div>
<div> </div>
<div>RhoAir=PrAir*MmolAir/Rgas/(Tair+273.15)</div>
<div> </div>
<div>I do not see an equation in there for pressure dependency of the air specific heat.</div>
<div>Kind regards,</div>
<div> David</div>
<div>
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<br>
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<br>Technical Support Team<br>Thermal Energy System Specialists, LLC<br>2916 Marketplace Dr, Suite 104<br>Madison, WI 53719<br>techsupport@tess-inc.com
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<br>----- Original Message -----
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Subject: [TRNSYS-users] [hypocaust type460] air density and capacity
<br>
From: "Didier De Kerpel" <didierdekerpel@gmail.com>
<br>
Date: Sun, May 18, 2008 14:11
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<div>Dear TRNSYS users, </div>
<div> </div>
<div>Does somebody know if the air density (rho) and the air capacity c_p are hardwired into the programming of the type460?<br>
<br>In other words do their values change in function of temperature (like they do in reality).
<br>
<br>I have the impression that they are hard programmed.</div>
<div> </div>
<div>Thanks,
<br>Didier</div>
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<br>--
<br>Didier De Kerpel<br>student University Ghent<br>member BEST Ghent<br>Didier.DeKerpel@UGent.be<br><a href="http://www.best.eu.org/" target="_new">http://www.best.eu.org/</a>
<br>+32 474 27 89 79 </div><!-- end sanitized html -->
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