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Dapeng,<br>
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.<br>
Kind regards,<br>
David<br><br>
At 08:11 10/24/2007, LiDapeng wrote:<br>
<blockquote type=cite class=cite cite="">Dear trnsys users:<br>
<br>
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℃ at 10th
hour and is 12℃ at 11th hour, then what is the temperature at 11.25th
hour?<br>
thanks!<br>
regards!<br>
<br>
Dapeng<br><br>
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