Re: [TRNSYS-users] Trnsed and parameters cycle

[Thibaut VITTE <thibaut.vitte@h3c-energies.fr>]

Thanks for the answer, Matt.

I see what you explain, but I don't see if it can apply to my problem. For instance, if I continue with the type 16 example. My question is : If the end-user wants to implement a variable number of surfaces, how to implement that in a "user friendly" way.

The way I see now is to use a default type 16 with a given numer of surfaces, let's say ten. But if I don't want to see all inputs in the GUI, I need to use check boxes that make appear inputs for the "checked" surface. Is there a way to make it work the same way  cycles work in Trnsys, with a numer defining the right inputs avalaible?

Best regards

Thibaut


Le 07/12/2011 20:04, Matt Duffy a écrit :

Dear Thibaut,

I ran into a similar problem with this in TRNSED the other day: I wanted to give the end-user the option of using one of two modes for the Type16 radiation processor, and as it turns out these two different modes had a different number of parameters or inputs. Fortunately, I work with the Trnsys savvy, David Bradley, and he contrived a solution. Implement both of the components in the input file, then when the user selects either component (in your case checks a box), it will turn on or off the appropriate outputs of the appropriate component in an equation. Here is a simple example.

I have two different Type16 in the input file. In mode 1 is Unit 2 Type16, and in mode 2 is Unit 22 Type16. When the user selects the mode 1, I set a variable to 1 (RM1=1) and set the other variable to 0, (RM2=0). Then I simply make an equation for the output of consideration that has both of the outputs from both of the components with the variable's "swi tch" to enable or disable that appropriate output.

EQUATIONS 1
QTotSurf=[2,7]*RM1+[22,7]*RM2



Best regards,

Matt Duffy

----- Original Message -----
From: "Thibaut VITTE" <thibaut.vitte@h3c-energies.fr>
Sent: Tue, December 6, 2011 12:15
Subject: [TRNSYS-users] Trnsed and parameters cycle

Dear Trnsys users,

I'm creating a trnsed application, and I need to define walls for a 
simplified building. I'm having difficulties to program a cyle for 
parameters. I've tried to use a model with a cycle implemented in the 
tmf, but it does not work, and if I understand well how trnsed works, it 
seems normal.

So I tried to make one using check box group that ask how many walls 
need to be inputed. But it is not what we can call "user friendly" since 
a numerical value would do the trick with a lot of space spared.

So my question is : Is it possible to take into account tmf cycles, or 
is it possible to make it with a numerical value, or does anyone have a 
good tip to share? I've looked into the applications I've found on the 
web, but I did'nt found anything relevant. (If you have a good example 
of an application using advanced trnsed possibilities that is avalaible, 
even if it does'nt answer my question, I would be happy to have a look 
!!! )

Many many thanks in advance.

Thibaut

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