[TRNSYS-users] Trnedit and parametric runs, trnsys output modification

[C.ARBOLEDA at sanden-europe.fr]

David,

Thank you very much for your quick answer.

It works great.

King regards.

__________________________________________________ 
Carlos ARBOLEDA

E-mail : c.arboleda at sanden-europe.fr



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From:   David BRADLEY <d.bradley at tess-inc.com>
To:     "TRNSYS users mailing list at the Solar Energy Lab, UW-Madison" 
<trnsys-users at cae.wisc.edu>
Cc:     C.ARBOLEDA at sanden-europe.fr
Date:   28/08/2013 16:57
Subject:        Re: [TRNSYS-users] Trnedit and parametric runs, trnsys 
output modification



Carlos,
  You can do this but in a slightly more indirect way. Say that you have a 
3 node tank and that the temperature of the 3 nodes are given by outputs 
21, 22, and 23 of UNIT 35. You will need to write an equation such as:

EQUATIONS 1
tempToWatch = isRun1*[35,21] + isRun2*[35,22] + isRun3*[35,23]

isRun1, isRun2 and isRun3 are all new variables that will be defined both 
in the input file and in the parametric table. You can write:

CONSTANTS 3
isRun1 = 1
isRun2 = 0
isRun3 = 0

for each run that you make, all three of the constants must be set and 
only one of them should be set to a value of 1; all others should be zero.

Lastly, you will need to go through the deck and replace the text [35,21] 
with the variable tempToWatch.
Kind regards,
 David
 

On 8/28/2013 05:30, C.ARBOLEDA at sanden-europe.fr wrote:
hi, 

I'm trying to simulate a DHW system, and I would like to make a parametric 
run using TRNedit. 
In this parametric study, I would like to change the node of my storage 
tank which is use to regulate my DHW system. 

In TRNedit, the TRNSYS outputs are referenced like this: [Unit#, Output#] 
Is it possible to replace the Unit# or the Output# by a constant or an 
equation? 

Example: 

TANK: UNIT 35 TYPE 534 

[35,21] is the temperature of the 1st node of my tank 

I want to replace [35,21] by [35,x], x will vary every new simulation 
following my parametric table. 

I do not undertand very well the properties of the object:  [Unit#, 
Output#] 

If it's not possible is there another solution to this problem? 

Thank you in advance for your answer 

Carlos Arboleda 

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-- 
***************************
David BRADLEY
Principal
Thermal Energy Systems Specialists, LLC
22 North Carroll Street - suite 370
Madison, WI  53703 USA

P:+1.608.274.2577
F:+1.608.278.1475
d.bradley at tess-inc.com

http://www.tess-inc.com
http://www.trnsys.com
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