Re: [TRNSYS-users] Small Bug in Type536?

Hi Jeff,

thanks for the answer. So don’t worry changing the proforma is really easy and works fine.

All the best,

Hermann.

_______________________________________________________________

DI Dr. mont. Hermann Schranzhofer
Institut fuer Wärmetechnik / Institute of Thermal Engineering
TU Graz / Graz University of Technology
Inffeldgasse 25 / B, A-8010 Graz

Tel.:        +43 316 873 7314
mobil:     +43 664 60 873 7314
Fax :        +43 316 873 7305
http://www.iwt.tugraz.at/
_______________________________________________________________

Von: Jeff Thornton [mailto:thornton@tess-inc.com]
Gesendet: Mittwoch, 18. Juli 2018 18:27
An: Schranzhofer, Hermann <hermann.schranzhofer@tugraz.at>
Cc: TRNSYS users mailing list at OneBuilding.org <trnsys-users@lists.onebuilding.org>
Betreff: Re: Small Bug in Type536?

Hermann,

There was a problem with the Type 536 proforma that we caught a few weeks ago - and that you have unfortunately discovered. All you have to do is move the logical unit parameter to #17 from #19 (as you have done), and everything is back as it should be. We have made the fix in the official version and it will be in the next release. Thanks for the help and sorry for the bug!

Jeff

---
Jeff Thornton

President - TESS LLC

22 N. Carroll Street, Madison WI USA 53703

Office: (608) 274-2577  Fax: (608) 278-1475

www.tess-inc.com

E-Mail: thornton@tess-inc.com

On 07/18/2018 5:29 am, Schranzhofer, Hermann wrote:

Dear TRNSYS-User, dear Jeff Thornton,

I just started to Type536 for a linear parabolic concentrating solar collector and have to change the IAM data file. I found the necessary information in the Mathematical References. I use not 10 but 7 values. The problems started when I tried to include this data file.

There were error messages about wrong number of data points or that die unit number is wrong. So I had a look at the source code because I had the feeling that there is something mixed up.

And this is what I found:

In the Proforma for Type536 Parameter 17 is for Number of Transverse IAM Data Points and Parameter 18 for Number of Longitudinal IAM Data Points. Parameter 19 is the unit number for the data file. But in the source code (line 214 to 216) Parameter 17 is the unit number and 18 and 19 for the numbers of the IAM values. I am not really sure so maybe someone can have a look at it.

Nevertheless, changing the proforma helps. My simulation is running now.

Best regards,

Hermann.

_______________________________________________________________

DI Dr. mont. Hermann Schranzhofer
Institut fuer Wärmetechnik / Institute of Thermal Engineering
TU Graz / Graz University of Technology
Inffeldgasse 25 / B, A-8010 Graz

Tel.:        +43 316 873 7314
mobil:     +43 664 60 873 7314
Fax :        +43 316 873 7305
http://www.iwt.tugraz.at/
_______________________________________________________________