[TRNSYS-users] Hourly values for dry and wet bulb temperature from daily values

Diego A. Arias daarias at wisc.edu
Tue Jul 10 08:01:50 PDT 2007

Dear José Luis,

I would recommend that you take a look at the book 'Solar Engineering of 
Thermal Processes', by professors Duffie and Beckman.  Section 2.13 
deals with 'Estimation of hourly radiation from daily data'.
Best regards,


> I have found data for the daily temperature and relative humidity 
> averages for this concrete day, and I would like to generate hourly 
> values for these two parameters, is there any way to do it? I found 
> that Type 54 can generate hourly weather data based on monthly 
> averages. That its no so conveninent for me, i think, as i already 
> have the irradiation data (and all simulations of the solar thermal 
> system) for one concrete day, and the air condition should fit with 
> these data.
> Does someone have any other suggestion? All will be appreciated.
> Thank you for your help.
> José Luis Corrales Ciganda
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Diego A. Arias
TRNSYS Coordinator
Solar Energy Laboratory
University of Wisconsin - Madison
1500 Engineering Drive
Madison, WI 53706

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