[TRNSYS-users] Units of Solar radiation

[Cramer Silkworth]

Artemi,
 
TMY2 files are just plain text files, you can open them in Notepad.
However, due to the format, they're difficult to read like that. Excel
can open them and be set up to split the data fields properly, or you
can just use a template like this one:
http://sel.me.wisc.edu/trnsys/weather/tmy2.xls
 
Type 109 knows that the input from a TMY2 file is in W/m2, and converts
its output for kJ/hm2, you shouldn't have to change anything for it to
work properly. What exactly is the problem you're getting?
 
-Cramer
 

J. Cramer Silkworth

Transsolar Climate Engineering

Technical consulting for energy efficiency and environmental quality in
buildings.

145 Hudson Street

Suite 402

New York, NY 10013

Office: 212-219-2255

silkworth at transsolar.com


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From: Artemi Spanaki [mailto:spanakiart at hotmail.com] 
Sent: Wednesday, February 04, 2009 7:09 AM
To: trnsys-users at engr.wisc.edu; techsupport at tess-inc.com; Cramer
Silkworth; bradley at tess-inc.com
Subject: Units of Solar radiation



 

Dear David and TRNSYS users 

Thanks again for your helpful advice. 

 

I think I found the reason that gives me strange results. I created a
*.tm2 file of meteorological data using Meteonorm software. The created
file gives the radiation in W/m^2. The component that reads this file
(type109-TMY2), has by default the unit of solar radiation in kj/hrm^2.
Have you got any idea about how can I change this, without changing the
whole proforma (this is because the proforma has already a lot of
changes that I don’t want to be change in this project).

 

Is there any way to view this *.tm2 file? (maybe another software?). I
connect it with type65a, in order to view some data, but it seems to be
quite different in comparison to the preview results of Meteonorm. I
think that this is the reason that gives me “weird” results in my
simulation.

 

Thank you for your helpful advices.

 

Best regards,



 

Artemi Spanaki


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