[EnergyPlus_Support] Design Day Definitions Update

[Linda Lawrie <linda@xxxxxxxxxx>]

As someone noted earlier this week, the macro datasets (and the design day 
definitions from weather files where they have ASHRAE counterparts) had 0.0 
windspeed for the summer conditions.  Changing this is not so simple as it 
might seem and, in fact, you need to be aware of what you are using vs the 
traditional values.

We have updated the macro data set design day definitions (taken from 
ASHRAE tables) to have the wind speed values (99.6% - heating, 1% cooling) 
in the design day objects.

But you should be aware that traditional values for these are 6.7056 m/s 
(15 mph) for heating and 3.3528 m/s (7mph) for cooling.  This is also shown 
in the comments for the wind speed values.  Also added were the noted 
extreme temperatures from the ASHRAE tables as well as the extreme wind 
speeds -- in comments, of course.

New files uploaded:
   File        : /Updates/USDesignDayDefinitions.zip
   Description : US Design Day Definitions updated with design condition 
wind speeds for both heating and cooling as well as showing the traditional 
defaults.

You can access the file at the URL:
http://groups.yahoo.com/group/EnergyPlus_Support/files/Updates/USDesignDayDefinitions.zip 


   File        : /Updates/CanadaDesignDayDefinitions.zip
   Description : Canadian Design Day Definitions updated with design 
condition wind speeds for both heating and cooling as well as showing the 
traditional defaults.

You can access the file at the URL:
http://groups.yahoo.com/group/EnergyPlus_Support/files/Updates/CanadaDesignDayDefinitions.zip 



   File        : /Updates/WorldDesignDayDefinitions.zip
   Description : World Design Day Definitions updated with design condition 
wind speeds for both heating and cooling as well as showing the traditional 
defaults.

You can access the file at the URL:
http://groups.yahoo.com/group/EnergyPlus_Support/files/Updates/WorldDesignDayDefinitions.zip 



Once you have copied your locations you may prefer to replace the condition 
values with the more traditional values at your option.


Linda

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



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