[TRNSYS-users] problem with weather file .109

David BRADLEY d.bradley at tess-inc.com
Mon Aug 20 09:54:10 PDT 2012


Faustine,
   If you are using Trnsys17, it is highly recommended that you change 
from using Type109 to using Type99. Type99 is the "user format" mode 
from Type109. Type109's ability to read standard format weather files 
(such as TMY2/Meteonorm) has been replaced by Type15.

   Whether you are using Type109 in Trnsys16 or Type99 in Trnsys17, 
there are a number of lines at the top of the data file being read that 
dictate which column in the file contains which pieces of the data. Look 
at the example data files:

..\Trnsys16\Examples\Data Files\Type109-UserFormat.109
..\Trnsys17\Examples\Data Files\Type99-UserFormat.99

The line:

<var>    TAMB    <col>    3  <interp> 2 <add>  0  <mult>  1     <samp>   
0    !...to get °C

dicates that the ambient temperature data is in column 3, that it should 
be interpolated, and that the values are already in °C (and therefore do 
not need to be converted).

Kind regards,
  David


On 8/17/2012 11:29, faustine escoffier wrote:
> Dear all,
> I have a big problem with my weather files. I'm trying to compare a 
> meteonorm file with a real weather file for the same place.
> I'm using for my real case a type 109 using the Perez model.
> To compare outside temperature I decided to plout out my two files 
> with a type 65.
> I get the following problem: My ouside temperature plotted out (from 
> my type 109) does not correspond to the temperature of the column 
> defined as TAMB ?
> I need ur help please...How could you explaine this problem? Where 
> does the error come from? I have no idea about it!
> Thaks a lot
>
> -- 
> *ESCOFFIER Faustine*
>
>
> _______________________________________________
> TRNSYS-users mailing list
> TRNSYS-users at cae.wisc.edu
> https://mailman.cae.wisc.edu/listinfo/trnsys-users

-- 
***************************
David BRADLEY
Principal
Thermal Energy Systems Specialists, LLC
22 North Carroll Street - suite 370
Madison, WI  53703 USA

P:+1.608.274.2577
F:+1.608.278.1475
d.bradley at tess-inc.com

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

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