Re: [EnergyPlus_Support] ground temp calculation

["Michael J. Witte" <mjwitte@xxxxxxxx>]

1.  MatlProps.  Changes may also be needed in the Insulation and BldgProps 
objects, plus the AP ratio in EquivSlab.

2.  From the dimensions of the building being modeled.  Area of the entire slab 
divided by the length of the slab perimeter.

Mike

On 1 Dec 2005, at 9:37, hbn_pch wrote:

> Hi,all
>     When we use the slab.exe utility to calculate the ground temp,we 
> can start with a copy of the example file 
> EnergyPlus\PreProcess\GrndTempCalc\SlabExample.idf. But at a minimum, 
> the thermal properties and area-perimeter ratios must be changed to 
> match the slab you are simulating in EnergyPlus.I have some doubts for 
> the change:
>  1.Which object in the idd description correspond the thermal 
> properties?That is which object should i change.
> 
>  2.How to set the area-perimeter ratios?Is there some rules or some 
> standard?
> 
>  Thanks.
> 
>  pch
> 
> 
> 
> 
> 
> 
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> 
> The primary EnergyPlus web site is found at:
> http://www.energyplus.gov
> 
> The group web site is:
> http://groups.yahoo.com/group/EnergyPlus_Support/
> 
> Attachments are not allowed -- please post any files to the appropriate folder
> in the Files area of the Support Web Site.
> 
> EnergyPlus Documentation is searchable.  Open EPlusMainMenu.idf and press the
> "search" button.
> 
> Yahoo! Groups Links
> 
> 
> 
> 
> 
> 
> 
> 



========================================================
Michael J. Witte, GARD Analytics, Inc.
EnergyPlus Testing and Support      
EnergyPlus-Support@xxxxxxxx




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