[TRNSYS-users] TR: division between cero

["Manuel Daconceicao" <daconceicao@matriciel.be>]

 

Hello Ana

 

Maybe you can use an equation box and make these equation:

 

Beam_rad/(Global_rad+0.000001)

 

So you don’t have divison by 0 and if global_rad = 0 it gives you a great number like 10000000000 so you know that’s infinity.

 

Good work

 

Manuel

 

MATRIciel sa

Ir Manuel da Conceição Nunes
                                         
Place de l'Université, 25 Etage 2 à 1348 Louvain-la-Neuve
Tél : 010/24 15 70 - Fax : 010/24 15 60

daconceicao@matriciel.be
http://www.matriciel.be

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De : Ana Rodríguez Iglesias [mailto:rodrigueziana@uniovi.es]
Envoyé : vendredi 19 décembre 2008 9:11
À : trnsys-users@cae.wisc.edu
Objet : [TRNSYS-users] division between cero

 

Hello all!!

 

I´m new with Trnsys and I need some help.

I need to make a division between beam radiation and global radiation. And, of course, at night these radiations are negative or zero, so trnsys give me wrong.

Can you help me to know the way to find the answer for this?

 

Thank you so much!!