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[EnergyPlus_Support] Re: Heating degree days and cooling degree days

Yes, I know that.
But, why, for cooling, EP uses 'base' of 10°C?
Does it means that when the outside air temperature is 15°C, then cooling is required??

Thanks

--- In EnergyPlus_Support@xxxxxxxxxxxxxxx, Don Shirey <shirey@...> wrote:
>
> Notice that the "base" is different (18.3C vs 18C vs 10C).
> 
> 
> rahmiandarini wrote:
> > Hi,
> >
> > I have question regarding weather data of DRYCOLD.TMY, provided for simulation of case 600, ANSI/ASHRAE Standard 140-2004.
> > I have converted the weather so that i can use the simulation in DesignBuilder & EnergyPlus.
> > When I checked the documentatio of ANSI/ASHRAE Standard, it is mentioned :
> > Heating degree-days (Base 18.3°C) : 3636.2°C - days
> > Cooling degree-days (Base 18.3°C) : 487.1°C - days
> >
> > and in the DesignBuilder
> >
> > Heating degree-days (Base 18°C) : 3379.2°C - days
> > Cooling degree-days (Base 10°C) : 1446°C - days
> >
> > and my question is that, what does it means, and why those values are difference as they're originally from the same data.
> >
> > Thanks,
> > Rahmi
> >
>




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