Re: [EnergyPlus_Support] Re: Ground tempe rature of Singapore

[Linda Lawrie <linda@xxxxxxxxxxxxxx>]

Read the auxiliary programs document on Ground heat transfer with 
EnergyPlus.  Look at the EPW file ground temperatures as well (which are 
not suggested for the Site:groundTemperatures values)

On 2013-01-18 18:49, academicryan wrote:
> Update: *EnergyPlus developer please respond*
>
> OK I now know how to calculate soil temperature as a function of
> depth from Hillel, 1982.
>
> Essentially his equation says that at 0 m depth, monthly average soil
> temperature is the monthly average air temperature plus 1°C. This is
> basically a sine wave. With increasing depth, the soil temperature
> gets closer to the annual mean air temperature plus 1°C.
>
> NEW QUESTION: Is this what 'Site:GroundTemperature:BuildingSurface'
> wants? i.e. 0 m depth soil temperature. Or some other depth? Or some
> other 'ground temperature' altogether?
>
> --- In EnergyPlus_Support@xxxxxxxxxxxxxxx, "academicryan"  wrote:
> > Can somebody please help me do a very simple task.
> >
> > Calculate/find the monthly ground temperature for Singapore. To 
> > clarify, this is the input for the 
> > 'Site:GroundTemperature:BuildingSurface'.
> >
> > ------
> >
> > Extra info - I've already tried the Slab utility, it comes up with 
> > very unbelievable results. Calculating some months below 17°C when 
> > Singapore air temperatures never drops below 21°C.
>
>
>
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