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Re: [TRNSYS-users] [hypocaust type460] air density and capacity



Didier,
  There is an equation in Type460 for the air density as a function of the air pressure:
 
RhoAir=PrAir*MmolAir/Rgas/(Tair+273.15)
 
I do not see an equation in there for pressure dependency of the air specific heat.
Kind regards,
 David





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----- Original Message -----
Subject: [TRNSYS-users] [hypocaust type460] air density and capacity
From: "Didier De Kerpel" <didierdekerpel@gmail.com>
Date: Sun, May 18, 2008 14:11

Dear TRNSYS users,
 
Does somebody know if the air density (rho) and the air capacity c_p are hardwired into the programming of the type460?

In other words do their values change in function of temperature (like they do in reality).

I have the impression that they are hard programmed.
 
Thanks,
Didier


--
Didier De Kerpel
student University Ghent
member BEST Ghent
Didier.DeKerpel@UGent.be
http://www.best.eu.org/
+32 474 27 89 79

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