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Re: [TRNSYS-users] Tr : problem of fichier air in the Calling Contam Exemple



Yujun,
 This is an interesting thing and I am not sure of the answer. I've never had such a problem but I must admit that I have never looked closely at the codes in the *.air file to make sure that they correspond to the output list. One thing you might do is to plot all of the output values and look at their magnitudes. Flows from one zone to another have the units of kg/h (it says kg/s in the CONTAM help file but this is not correct.) while flows to/from ambient have the units of airchanges per hour. I'll look at the code on my end and see if I can determine which is correct.
Kind regards,
 David


Yujun TAO wrote:
Freindly users,
I want to contiue my question.
The type Contam make me worried because a new model created in Contam by myself give the same result. The outputs showed by the type Contam in simulation studio didn't correspond to those outputs's ordre in the file "air": 1->2, 1->3.
Has someone found a solution?
Aleck

----- Message transféré ----
De : Yujun TAO <aleck1314@yahoo.fr>
À : TRNSYS USERS <trnsys-users@engr.wisc.edu>
Envoyé le : Vendredi, 4 Septembre 2009, 16h52mn 15s
Objet : [TRNSYS-users] problem of fichier air in the Calling Contam Exemple

Hello,
I found an ambiguous explanation by Contam for the fichier air in the Calling Contam Exemple.

Here is the meaning about Output in Contam :

One line for each output variable consisting of
  I  NR      - output number (index to XOUT).
  I  NZ      - number of zone the air flows from.
  I  MZ      - number of zone the air flows to.

Here is the Exemple about Output in the fichier air in the Calling Contam Exemple :
-999 inputs & outputs:
6 6
1 1 2
2 1 3
3 2 1
4 2 3
5 3 1
6 3 2
-999 end-of-data
...
       ********** AVAILABLE OUTPUTS **********

         1     Flow from zone Foyer/GroundFloor to zone MainZone/GroundFloor
         2     Flow from zone Ambient to zone MainZone/GroundFloor
         3     Flow from zone MainZone/GroundFloor to zone Foyer/GroundFloor
         4     Flow from zone Ambient to zone Foyer/GroundFloor
         5     Flow from zone MainZone/GroundFloor to zone Ambient
         6     Flow from zone Foyer/GroundFloor to zone Ambient

If we look at Output 1 and 2, the number of zone the air flows from is the same "1", but in the description "available outputs", the name is different, Output 1 = flow from foyer to mainzone well Output 2 = flow from ambient to mainzone.

So, where is the problem? just the description or the model Contam?

Aleck
Engineer



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