[EnergyPlus_Support] Re: Converting weather data files

["fbio_reis" <fabioreis23@xxxxxxxxx>]

I understood it now. I'm gonna read that pdf file. 

Thanks for the help.

--- In EnergyPlus_Support@xxxxxxxxxxxxxxx, Linda Lawrie <linda@...> wrote:
>
> The def files describe what is in your Solterm 
> file -- in general terms.  It accompanies the 
> actual data file.  It tells the weather converter how to read the data file.
> 
> If you wish to modify an existing file:
> How do I modify an EPW file?
> The easiest way is:
> 1) run the weather converter on the original file
> 2) convert the file to "EnergyPlus CSV"
> 3) open the EnergyPlus CSV file in your favorite spreadsheet program.
> 4) make the mods, saving it as CSV from the spreadsheet program.
> 5) run the weather converter again, this time 
> selecting the CSV and make sure the File type is "EnergyPlus CSV"
> 6) convert it to EPW.
> 
> if your regional settings aren't like US, you 
> could run into a couple of problems, such as the 
> spreadsheet program changing the DataPeriods line 
> from 1/1, 12/31 to 01-Jan -- you'd need to hand edit that before step 5
> 
> Be aware that specific year data is not usually 
> deemed appropriate for Energy Analysis.
> See this document for more details:
> Information on selecting weather data is described in this paper:
> Drury B. Crawley. 1998. "Which Weather Data 
> Should You Use for Energy Simulations of 
> Commercial Buildings?" in ASHRAE Transactions, 
> pp. 498-515, Vol. 104, Pt. 2. Atlanta: ASHRAE. (PDF 197 KB)
> 
> PDF: 
> http://energyplus.gov/pdfs/bibliography/whichweatherdatashouldyouuseforenergysimulations.pdf
> 
> 
> 
> 
> At 08:26 AM 2/21/2011, fbio_reis wrote:
> >The Solterm files are text files. How can i create a def file?
> >
> >"&location
> >City=<cityname>
> >StateProv=<state/province>
> >Country=<country>
> >InWMO=<wmo>
> >InLat=<latitude>
> >InLong=<longitude>
> >InElev=<elevation>
> >InTime=<timezone>
> >/
> >&wthdata
> >NumInHour=1
> >InputFileType='CUSTOM'
> >InFormat='DELIMITED'
> >DataElements=year,month,day,hour,minute,datasource,Dry_Bulb_Temperature,Dew_Point_Temperature,Relative_Hum
> >idity,Atmospheric_Pressure,Extraterrestrial_Horizontal_Radiation,Extraterrestrial_Direct_Normal_Radiation,
> >Horizontal_Infrared_Radiation_Intensity_from_Sky,Global_Horizontal_Radiation,Direct_Normal_Radiation,Diffu
> >se_Horizontal_Radiation,Global_Horizontal_Illuminance,Direct_Normal_Illuminance,Diffuse_Horizontal_Illumin
> >ance,Zenith_Luminance,Wind_Direction,Wind_Speed,Total_Sky_Cover,Opaque_Sky_Cover,Visibility,Ceiling_Height
> >,Present_Weather_Observation,Present_Weather_Codes,Precipitable_Water,Aerosol_Optical_Depth,Snow_Depth,Day
> >s_Since_Last_Snow,Albedo,Liquid_Precipitation_Depth,Liquid_Precipitation_Quantity
> >DataUnits='x','x','x','x','x','x','C','C','%','Pa','Wh/m2','Wh/m2','Wh/m2','Wh/m2','Wh/m2','Wh/m2','lux','
> >lux','lux','Cd/m2','deg','m/s','tenths','tenths','km','m','x','x','mm','{.001}','cm','x','{.01}','mm','hr'
> >DataConversionFactors=1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1
> >DelimiterChar=','
> >/
> >&miscdata
> >Comments1='Standard EPW Custom def format for 
> >reading EPW files in EnergyPlus Weather Converter'
> >SourceData='EPW'
> >/
> >&datacontrol
> >NumRecordsToSkip=8
> >MaxNumRecordsToRead=8784
> >MissingWindDirAction=RANDOM
> >/"
> >
> >Do i have to fill since the "&wthdata" for each hour?
> >
> >Another way i could do this is search for a 
> >weather file near the location i want that is 
> >already done and change the values according to 
> >the weather files in Solterm. Is this a good solution?
> >
> >Thanks for the answer,
> >Fábio Reis
> >
> >--- In EnergyPlus_Support@xxxxxxxxxxxxxxx, Linda Lawrie <linda@> wrote:
> > >
> > > If your Solterm files are text files, you will need to create a "def"
> > > file (definitions file) and use the procedure in the Auxiliary
> > > Programs document for "custom data".
> > >
> > > If they are binary files -- you will need to get them to text and
> > > then follow the above.
> > >
> > > At 07:55 AM 2/21/2011, fbio_reis wrote:
> > > >Hi all,
> > > >
> > > >I'm having some problems converting weather files using the auxiliar
> > > >program from Energy Plus. I have a software (Solterm) that have
> > > >weather files in the extension .dat and when i do the conversion
> > > >with the auxiliar program from E+ it gives me an error but in the
> > > >output i have 2 files (.stat, .audit).
> > > >
> > > >Is there anything i'm doing wrong? There is a way to do this differently?
> > > >
> > > >Thanks,
> > > >Fabio Reis
> > > >
> > > >
> > > >
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------------------------------------

Primary EnergyPlus support is found at:
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