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> It seems that it is not
possible to enter a wall area smaller than 0.1m².
I use
TRNBuild 1.0.94 and I can enter smaller wall areas (I took 0,001 ). But TRNBuild
shows in the upper window area values not smaller then 10^-2. But open the *.inf
or the *.bui by a texteditor shows the real value.
Attention: I don't know how TRNSYS treats such small
vallues -> test it!
U-values: Did you consider the Transfer
Coefficients!!
Stefan
Dear
users,
I'm trying to model a small box
made of aluminium (2mm thick) and in order to define the walls I used a
massless layer. Thus I entered a thermal resistance (thickness divided by
conductivity) for my new layer but the U-value given in the Wall Type Manager
is different from my corresponding U-value. Does someone know why? Does it
deal with the "combined heat transfer coefficients"? Is the U-value from the
Wall Type Manager used at some point in the
calculation?
I have another question, related
to the size of the zone. It seems that it is not possible to enter a wall area
smaller than 0.1m². Is it right? if yes, is there another way to model a very
small zone?
Thanks for your
help
Virginie
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