Re: [TRNSYS-users] weather data reader

[David Bradley <bradley@tess-inc.com>]

Dapeng,
  TRNSYS interpolates weather data when you use a time step less
than an hour. For variables such as temperature and humidity, a linear
interpolation is used. For solar radiation, a more complex algorithm
based on cumulative radiation distributions functions is used.
Kind regards,
 David

At 08:11 10/24/2007, LiDapeng wrote:

Dear trnsys users:
 
    Now I want to simulation something in small time step, for example timestep=0.25hour, but the weather data is the hourly data. Then how does trnsys deal with it? eg:air temperature is 10¡æ at 10th hour and is 12¡æ at 11th hour, then what is the temperature at 11.25th hour?
    thanks!
    regards!
 
 Dapeng

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