[TRNSYS-users] user format 109

Eleni Ampatzi ampatzie at Cardiff.ac.uk
Tue Apr 22 07:37:34 PDT 2008


Dear all,

I am still experiencing problems while working with type 109 user format, although I had help from
the Forum in the past. One of the suggestions was to work with types 9 and 16 instead, but I have
invested time on the use of type 109 and I just want it to work...

I have done several corrections to the file I have attached here, including deleting negative or
non-zero radiation values between sunset and sunrise. It is one year's data (originally recorded in
5 min innervals, but I have averaged it in 15 mins) of temperature, rel humidity and Iglob_h and
Idiff_h. 

The problems now:
1)If I compare input and output of Iglob_h and Idiff_h, I see that the data is misread by the
component.
2) In the list file I find lots of comments of this type:
 ***** WARNING ***** UNIT  2 TYPE109
    BEAM RADIATION:    121.76 EXCEEDS EXTRATERRESTRIAL AT TIME  2202.75
    EXTRATERRESTRIAL RADIATION:     59.03 USED

I do not get the role of the extraterrestrial radiation (the solar radiation in absence of the
atmosphere?)... I guess this value is computed by the type and is then compared to the computed
Ibeam_h. Can you please help me with this problem? Any advice will be appreciated. Thank you in
advance,

Best Regards

Eleni Ampatzi

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