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[EnergyPlus_Support] Re: sizing factor

Thanks. it is for Winter. The setpoint is 21C, but zone temperatures 
in the north side are only 16C. 




--- In EnergyPlus_Support@xxxxxxxxxxxxxxx, Linda Lawrie <linda@l...> 
wrote:
> For Winter or Summer?
> 
> FYI, It looks like you're using the Design Days from the "BLAST" 
library 
> set.  I'd suggest you use the ones from the USDesignConditions 
(ASHRAE 2001).
> 
> If you understand the ASHRAE design conditions, you may be able to 
make a 
> better choice for your building.
> 
> ASHRAE, heating, for example has:
> 
> 99.6% (still a .4% off the true min/max conditions)
> and
> 99%
> 
> The cooling conditions have several more options depending on the 
kind of 
> system/actual conditions that you have.
> 
> EnergyPlus makes no "built in" assumptions/safety 
factors/engineering 
> judgment.  Ergo, the sizing factor is used to take the raw/minimal 
sizing 
> (to meet certain conditions) into actual building conditions that 
would be 
> expected to meet actual extreme conditions.
> 
> Hope this helps.
> 
> 
> At 05:27 PM 7/13/2004, pizzaalan wrote:
> 
> >When I choose 1.2 and only simulate the design days, the
> >temperatures of some zone don't reach to the setpoint. The design
> 
> Linda
> 
> EnergyPlus WebSite: http://www.energyplus.gov
> Owner: EnergyPlus_Support list
> Member: EnergyPlus Development Team
> 
> 
> 
> [Non-text portions of this message have been removed]



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