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Dear trnsys users,
I'm struggling with a trnsed application regarding defining a building's envelope. I want let the user add walls when one after the oether to define the envelope. I use the following scheme with checkboxes involved : input wall 1 Uw1, Area_w1 Do you want to input another wall ? Input wall 2 Uw2, Area_w2 Do you want ton input another wall ? etc. It seems to me that this is the most user friendly way to make a simili-cycle in trnsed. I managed to code it in Trnsed language. But now I'm struggling with the trnsys code. I did'nt think of that before but here's the problem : I don't know how many walls are to be inputed ! The problem can be simplified like this : I want to calulate a mean value for 1, 2 or 3 values. First Group: A=10 2nd group B=5 3rd group C=6 I can calculate each time the mean value : First Group: A=x M1=A/1 2nd group B=y M2=(A+B)/2 3rd group C=z M3=(A+B+C)/3 But the problem is: If I want to reuse that mean value as an input for another component, how do I do? If I use an equation I will automatically call an input that does'nt exist if there are only 2 values for instance. If I define the 3 values for each group and calculate the mean at the end like : First Group: A=x B=0 C=0 2nd group B=y C=0 Then I get an error because I define an value twice ! In fact that was the way I thought of firstly... I think I mixed coding in Trnshell and in Fortran in my head.. So do you see a way to get the right "mean value" (ie the right overall heat transfer coefficient in my case)? It can include to write a piece of code, I thought of that solution but I don't see neither how it can work. I hope I've been clear enough ! Happy new year to all Trnsys users. Thibaut
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