[TRNSYS-users] Strange result from the weather data reader

[Jeff Thornton]

Mr. Lee

TRNSYS does not output instantaneous values, so the value that you are 
seeing at a particular point in a printer is the average over the 
timestep.  If you plot the temperatures at the midpoint of the timestep, 
as I have done in the attached spreadsheet, you will see that the 
profiles are identical.

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 at tess-inc.com


On 08/14/2014 7:58 pm, C K Lee wrote:
> Dear all.
> 
> I am using the Type15-6 to read the weather data of Beijing from the
> data file provided by TRNSYS.  However, I find that when I use
> different simulation time steps, the output of the weather data at
> particular times will be different (see attached file).  I try both
> TRNSYS 16 and 17, and the same problem occurs in both platforms.  Can
> anyone advise why this happens?  Thank you!
> 
> Best Regards
> Chun Kwong LEE
> City University of Hong Kong
> 
> _______________________________________________
> TRNSYS-users mailing list
> TRNSYS-users at lists.onebuilding.org
> http://lists.onebuilding.org/listinfo.cgi/trnsys-users-onebuilding.org
-------------- next part --------------
A non-text attachment was scrubbed...
Name: Weather profile of Beijing at different simulation time steps.xls
Type: application/vnd.ms-excel
Size: 91136 bytes
Desc: not available
URL: <http://lists.onebuilding.org/pipermail/trnsys-users-onebuilding.org/attachments/20140814/cfbb7336/attachment-0001.xls>