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Re: [TRNSYS-users] equation
Michaël,
Thanks already.
But when a constant is defined in the control card, can I use it in an
equation which is defined in an equation bloc on the assembly panel? Or
do I have to write that equation in the control card too ? (hope it is
clear ...)
Best regards,
Isabelle
A 11:29 27/01/2005 -0600, Michaël Kummert a écrit :
Isabelle,
Is it possible, in Trnsys
simulation studio, tu use a Constant value defined in the simulation
cards ?
You can use any constant in other equations, as a parameter or as an
initial value (for the last 2 options you need to set the variable type
to "string").
The Studio creates the following 3 constants by default:
START : simulation start time
STEP : simulation time step
STOP : simulation stop time
You can also add your own equations/constants in the control cards (in
the "simulation cards" field, e.g.
CONSTANTS 1
MyConstant = 123.45
(This is the same as creating an equation block in the Studio, except
that CONSTANTS are picked by the parametric table tool in TRNEdit,
EQUATIONS are not)
And don't forget that in TRNSYS 16, you do not have to pay attention to
the order of equations anymore. You can have things like:
Var1 = Var2+6
Var2 = 4
in that order.
I hope this helps,
Michaël Kummert
--
_________________________________________________________
Michaël Kummert
Solar Energy Laboratory - University of Wisconsin-Madison
1303 Engr Res Bldg, 1500 Engineering Drive
Madison, WI 53706
Tel: +1 (608) 263-1589
Fax: +1 (608) 262-8464
E-mail: kummert@engr.wisc.edu
SEL Web Site:
http://sel.me.wisc.edu
TRNSYS Web Site:
http://sel.me.wisc.edu/trnsys
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Isabelle
Bruyère
Université Catholique de Louvain
Place
du Levant, 1 à 1348 Louvain-la-Neuve
Unité d'architecture - Architecture et
Climat Tél
: 010/47 21 38 - Fax : 010/47 21 50