[TRNSYS-users] New Type development with very high number of parameters

[David BRADLEY]

George,

  I think that you are on the correct track with putting the parameter 
values into an external file that gets read during the start time 
manipulations section. Your Type could take a parameter that is the 
logical unit number of the data file containing the values then use 
pretty standard Fortran "open" and "read" commands to take the data from 
the file and insert it into whatever data structure you want inside your 
Type. I'd suggest looking at Type15 for some ideas on implementing the 
"open" and "read" commands.

kind regards,

  David


On 07/12/2021 07:44, George Kyriakarakos via TRNSYS-users wrote:
>
> Hi to all!
>
> I am trying to develop a new type in TRNSYS. I have done this multiple 
> times in the past successfully but this time I have 512 parameters to 
> pass in the type (essentially an array of 16 lines x 32 columns). This 
> data is calculated externally in MS Excel prior to running any 
> simulation in TRNSYS.
>
> One approach I have thought about is to make all data in two columns 
> in excel, use that file as an external file to the new type and during 
> "Start Time" Manipulations to read the data and store them in the 
> array I ultimately want to be accessible in the new type. If it gets 
> in there it is easy to manipulate the data / include new arrays / etc. 
> I would follow TYPE90 as a template in accomplishing this. This is not 
> optimal though since I will have a very long list of data (512 lines) 
> instead of having much less lines with more columns (this makes it 
> easier to check as well).
>
> Is there any way to read a multi-columned external file? Is there a 
> tutorial of some sort or a type I could follow as a template to 
> develop this?
>
> Do you maybe have another suggestion on how to implement this?
>
> Thank you in advance,
>
> George
>
> --
>
> Dr. George Kyriakarakos, Agricultural Engineer
> PhD, MSc Energy Systems & Renewable Energy Sources
> Agricultural University of Athens,
> Dept. of Natural Resources and Agricultural Engineering
> Iera odos street, 75, Athens 11855, Greece
> Tel. +30.210.5294046 (direct), Fax:+30.210.5294023
> Mobile +30.6942.046895
> e-mail: gk at aua.gr <mailto:gk at aua.gr>
>
> Skype: georgekyriak
>
>
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-- 
***************************
David BRADLEY
Principal
Thermal Energy Systems Specialists, LLC
3 North Pinckney Street - suite 202
Madison, WI  53703 USA

P:+1.608.274.2577
d.bradley at tess-inc.com

http://www.tess-inc.com
http://www.trnsys.com

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