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Re: [TRNSYS-users] time calculation

Dear Matthieu,
There are two options: you may try to connect to another program, such as EES or MATLAB, but I think that you will experience a similar speed issue. A more definite solution is to write your component in Fortran. The best way to get started is to read section 1.9 in the Volume 1 "Getting Started". From there on, you can check the Volume 8 "Programmer's guide" for detailed information of how to create components. Finally, you can look at the source of the standard components and get ideas of how to develop you own type. 
Best regards,

Diego

Matthieu Cosnier wrote:

So i created an excel file that calculate all this equations with the option "solveur". The procedure is a step by step one, and consist of impose arbitrary values of each temperatures, to solve each system, to compare the calculated values to the imposed ones, and to start again if not.
It works very good but it's quite slow (about 5 seconds).
The problem is that i have linked this program with Trnsys
(type 62), but as you can imagine it's very long to complete my simulation because each timestep is about 5 second long.
My questions are : have i some solutions to do my simulation faster? may i use a fortran program (or another one)? and if yes, how to write it? ( i've never use fortran)

Apologize for this bad english long text
Best regards
Matthieu.

°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°
COSNIER Matthieu
Doctorant
LOCIE
ESIGEC-Université de Savoie, Campus Scientifique,
Savoie Technolac, 73376
Le Bourget-Du-Lac cedex
Tel :   06 77 75 09 31
Fax :  04 79 75 81 44
E-mail : matthieu.cosnier@etu.univ-savoie.fr
°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°


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Diego A. Arias
TRNSYS Coordinator
Solar Energy Laboratory
University of Wisconsin - Madison
1500 Engineering Drive
Madison, WI 53706