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Re: [EnergyPlus_Support] Summer/Winter Design Days for system autosize



Look at the .stat data from when you generated the weather file (Meteonorm 6 can generate EPW directly).  Or run the WeatherConverter program on your EPW file now. 

There is a section that should say:
 - Using Design Conditions calculated from this weather file.

 -  The following design temperature statistics are calculated based on THIS weather file ONLY
 -  and may not be representative of a long-term  period of record normally used for
 -  design temperatures. Also, note that dew point temperatures are listed where
 -  wet-bulb temperatures are normally presented.

        Design Stat     Coldest Month   HDB 99.6%       HDB 99%
            Units            {}             {C}            {C} 
          Heating        1        4.9     5.9

        Design Stat     Hottest Month   CDB .4% CDB 1%  CDB 2%  CDP ..4% CDP 1%  CDP 2%
            Units            {}            {C}     {C}     {C}     {C}     {C}     {C}
          Cooling        8       49.1    48.1    47.1    29.8    27.4    26.5

        Design Stat     Jan      Feb      Mar      Apr      May      Jun      Jul      Aug      Sep      Oct      Nov      Dec
            Units        {m/s}    {m/s}    {m/s}   {m/s}    {m/s}    {m/s}   {m/s}    {m/s}    {m/s}   {m/s}    {m/s}   {m/s}
        Max WS   13.0    13.0    15.0    12.0    12.0    12.0    13.0    12.0    11.0    12.0    13.0    11.0

Alternatively, if Meteonorm did not know the WMO for your station and there is one, there might be a ASHRAE design condition.  You can put the WMO in the proper place and then use the WeatherConverter again to slurp up the design day information in IDF form.  (Using the above from your file, you will have to define your own design days).

Linda

EnergyPlus WebSite: http://www.energyplus.gov
Owner: EnergyPlus_Support list
Member: EnergyPlus Development Team

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