[TRNSYS-users] Data file that is not dependend on time

[Jeff Thornton]

Jan,

I’d use two instances of Type 42.  The first is a single independent variable that takes temperature and returns category.  The second Type 42 would then be a two independent variable that takes category and climate region and returns your table value.

Jeff 

Sent from my iPhone

> On Apr 6, 2022, at 7:43 AM, Böttner, Jan via TRNSYS-users <trnsys-users at lists.onebuilding.org> wrote:
> 
> 
> Hi,
> I am trying to implement the VDI 4655 into TRNSYS. Maybe someone knows it and allready used it – then I’d appreciate if you could tell me, how you did it.
> Otherwise it doesn’t really matter what the VDI is about.
>  
> My problem is the following:
> 
> I know how to implement a data file, that has time-dependent values and that is read for each timestep (Type 9e).
> But what I need is a Type, that just reads values in that can then be accessed.
> I try to explain what I mean exactly.
>  
> Depending on the outside temperature, a day is classified into a category (e.g. 3 categories.) Depending on this category, a factor is applied to a formular. Furthermore, the factor is also dependend on a climate region (e.g 15 regions).
> So that means, i want to insert the Matrix (15*3) into TRNSYS and then, a secific value is chosen, depending on the input variable. E.g. the temperatur is 10°C which means category 2 and the climate region is No. 4 (Input 1 (category): 2, Input 2 (region) 4). I therfore want the entry X2Y4 of my Matrix as the output.
> 
> Is this even possible? Or do i have to insert that Matrix into the F90 code of a new type?
> 
> Any help is highly appreciated.
>  
> Best regards,
> Jan Boettner
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