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Re: [TRNSYS-users] Ground Convection coefficient

As noted in TRNBuild (where you set the back side convection coefficient), a value smaller than 0.001 is used to indicate direct contact between a BOUNDARY wall and a temperature. A large value (such as 999) is used with other wall categories (ADJACENT, EXTERNAL, etc.) to indicate good thermal contact.
Best,
 David


On 4/13/2011 10:30, pseudomino@gmx.com wrote:
Hello,

Usually, when using the assistant to create a multizone building, the convection coefficient between the soil and the floor is set to 999 to reproduce the absence of thermal resistance.

But when I create a file using the Trnsys3D import from Sketchup, this same coefficient is set by default to 0,001.
Why is that ?

Please help me understand 

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David BRADLEY
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