Dear
Sir/Madam
I am validating
EnergyPlus according to the VDI directive 6020. Tests require surfaces which
absorption coefficients are zero, a constant external temperature and no solar
radiation. In the case of one example a room has to be simulated with a load of 1000 W, one
time 100% convective, the other time 100 % radiant. While the radiant load
produces an equilibrium temperature of about 52 °C (conform to the reference
results of the directive) the convective load raises the room temperature to
only 36 °C (reference temperature in the directive is about 50 °C).
There is no
doubt that the convective load causes the room temperature to increase quicker,
but I wonder why the same load of 1000 W (either radiant or convective)
produces such different equilibrium temperatures at constant external
conditions.
I would appreciate
your help.
Alexander Beisteiner
__________________________________
alexander.beisteiner@xxxxxxxxxxxxxxxxxx
Forschungs- und Technologietransfer
Pinkafeld GmbH
Steinamangerstrasse 21
7423 Pinkafeld
http://www.fh-pinkafeld.ac.at
Tel.: 0043/3357/45370-1324
Fax: 0043/3357/45370/1010
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