[TRNSYS-users] TRNFlow Cs of Large Opening , Simulink integrated with TRNSYS

[王洋]

Dear all,



I have some questions about TRNFlow and Calling Matlab.

1) For Closed Opening in TRNFlow: There is a flow coefficient Cs per m crack
length, the default value is 0.0001 kg/s/m at 1 Pa. Why is it this value?
How to get or calculate it? Since I don't know how many meters of the cracks
are in the zone.  I seeked from the TRNFlow manual but there is nothing
about it.


when I set Cs as 0 kg/s/m at 1 Pa, BUT I found there is still air flow
escaping from the zone (there is only one zone in my project). Because I
observed CO2 concentration is still decreasing all the time after closed all
the openings.


If I want to simulate the infiltration rate (0.4 1/h) after closing all the
openings, How could I set this Cs? What equations can I use? Many thanks in
advance!



2) For Calling Simulink: Which experts have some experience for calling
Simulink? I designed a Controller using Simulink, I need connect the
controller’s output and input with the TYPE 56’s input and output, and set a
set-point value using Simulink. Who could tell me some general guides or
pass me your examples about that. I will appreciate very much for your help!
Since I also didn't find anything in Manual or others.



Or must I translate Simulink into M-file, then connect with TYPE 56?






Many thanks in advance!



Br




2011/10/25 王洋 <wanghongyang1767 at gmail.com>

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> wang
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