[TRNSYS-users] R: Stability criteria not fullfilled

["latara" <latara@libero.it>]

Hello Trnsys Usertrnsys-users,
my name's Laura, if you have a wall with more than 50cm insulation you have
to increase the timebase in the window Project of TRNBUILD (output) from 
1 hr to 2 or 3 hr. I had the same problem.

-----Messaggio originale-----
Da: T. Tian [mailto:thomas.geier3@freenet.de] 
Inviato: domenica 30 marzo 2008 20.30
A: trnsys-users
Oggetto: [TRNSYS-users] Stability criteria not fullfilled

Hallo Trnsys Usertrnsys-users,

I found one message from internet as blow:

"Actually with your defined wall ( heavy, very well insulated) the transfer
function method reaches its limits.
We would suggest to simulate only the concrete part as thermal mass while
the insulation part can be ".
As the insulation material has a low thermal mass this will not create a big
error."

I am newbie with TRNSYS. Can someone explain to me this more: "simulated as
resistance"? What should people do if the wall has more than 50cm insulation
in Trnsys?

Thanks a lot   



No virus found in this outgoing message.
Checked by AVG. 
Version: 7.5.519 / Virus Database: 269.22.1/1352 - Release Date: 31/03/2008
10.13