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Dear Remon, The operative temperature is calculated depending on whether you’ve defined a comfort position or simply used the operative temperature of the
airnode. The simple calculation is based on an area weigted mean radiant temperature calculation (in this case the mean radiant temperature is the same
for every airnode in your zone) and parameter 3 weighting factor for operative temperature. The default value is 0.5 i.e. the mean radiant temperature and the temperature of the airnode is Weighted 50:50 in the operative temperature calculation.
The detailed calculation is based on the defined position and is calculated considering the viewfactors. This only works when you set up your model
with TRNSYS 3D (geometrical information is needed). You might check the manual chapter 5.4.6 for further information. Best __________________________________________________________________________________________________ Jochen Lam TRNSYS Software Team
Curiestraße 2 70563 Stuttgart Fax: +49 711 67976-11 Web: www.trnsys.de
Von: trnsys-users-bounces@cae.wisc.edu [mailto:trnsys-users-bounces@cae.wisc.edu]
Im Auftrag von Remon Lapisa Hallo every one, I would to
realize a temperature stratification model of
monozone building with 12 pcs of air nodes. I would like to know how TRNSYS 17 (type 56) calculates the operative temperature of the center node (not in contact with roof and floor). Is the radiation part of surfaces (i.e floor,roof) from
others air nodes has been included in operative temperature calculation of this middle node ? I am very happy if some one would like to share the information Thank you
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