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Re: [TRNSYS-users] TRNSYS-users Digest, Vol 29, Issue 36



Dear Mr. Chehal,
I think that the problem can be in the fact that if the room have a Tint fixed to 26°C, your equation don't consider this case. Perhaps is sufficient to change the equation in the following form:

Output = lt(time,2880)*16735 + ge(time,2881)*le(time,6552) *( lt(Tint,26)*16735+ge(Tint,26)*33470 ) + gt(time,6553)*16735

Hoping to be helpful I wish you success in your work anyway,
Best regards,
Michele Liziero

--
Ing. Michele Liziero
Politecnico di Milano - Dipartimento di Energetica
32, Piazza Leonardo da Vinci
20133, Milano, Italy

Tel.:         +39 02 2399 3818
Fax:         +39 02 2399 3868

Work e-mail:        michele.liziero@polimi.it


2007/5/16, trnsys-users-request@engr.wisc.edu <trnsys-users-request@engr.wisc.edu >:

  2. Problem with an output (Chehal, Samir)

---------- Messaggio inoltrato ----------
From: "Chehal, Samir" <Samir.Chehal@jacobs.com>
To: <trnsys-users@engr.wisc.edu>
Date: Wed, 16 May 2007 15:25:31 +0200
Subject: [TRNSYS-users] Problem with an output

Dear Trnsys users,

I have a problem.

I insert the equation:

Output = lt(time,2880)*16735 + ge(time,2881)*le(time,6552) *( lt(Tint,26)*16735+gt(Tint,26)*33470 ) + gt(time,6553)*16735

And I obtain in my chart :

16735   for 0<time<2880

0          for 2881<time<6552

16735   for 6553<time

There is an incoherence.

<<Wizard25.tpf>> <<Wizard25.bui>>

Best Regards

 



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