[TRNSYS-users] formatting raw weather data for use in TRNSYS17 model validation

[Jeff Thornton]

<I have raw weather data from a weather station that I want to use
in validating a simulation model against observational data in a single
room. What is the process of inputting and formatting this data (in .csv
format) so it can be used in TRNSYS17 as the weather file. From what I
have read Type 15 reads in standard formats (TMY2 etc) but my weather
data isn’t in a standard format. There are typical measurements with
this weather station (i.e. dry blub temp, RH, total incident radiation
on horizontal surface, barometric pressure, wind speed, wind direction,
etc) Do I need to use the ‘getIncidentRadiation’ function to generate
the required data? Or do i need to use a weather converter utility
outside of TRNSYS17?> 

Put the data into a pure ASCII text file (CSV,
text-file etc.) in column format and use the Type 9 data reader to read
in the weather data. You'll have to pass the solar radiation data to the
Type 16 radiation processor to get the rest of the solar quantities.
While it's not "hard" it can be tricky so take some time, look at an
example, and read the documentation for both Type 9 and Type 16 and you
should be fine. 

<Also, I do not have 8760 datapoints for each
parameter, i want to validate the model during a shorter time period,
i.e. 1 week. is this possible with TRNSYS?> 

Yes it is - just make sure
to set the correct starting day in the radiation processor and set the
correct start and stop times for the simulation. 

Jeff

---

Jeff
Thornton 

_President - TESS LLC_ 

_22 N. Carroll Street, Madison WI
USA 53703_ 

_Office: (608) 274-2577 Fax: (608) 278-1475_


_www.tess-inc.com_ 

_E-Mail: thornton at tess-inc.com_ 

 
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