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Re: [TRNSYS-users] hello Trnsys user



Destin,
I need to see your *.bui file in order to be certain about the cause of the problem. However, the error that you are getting is because there is some EXTERNAL surface that is set to have an automatically calculated heat transfer coefficient. Because EXTERNAL surfaces are subject to ambient conditions (wind, etc.) and because the automatic heat transfer coefficient calculation is for natural convection, the methodology doesn't apply. Start by checking all of the wall types that you have set as EXTERNAL and make sure that the outside surface heat transfer coefficient is set to either "constant" or "input" and not to "automatic"
Kind regards,
 David


At 14:10 7/21/2007, Destin Noa wrote:
HI,
I am modeling a multi-Zone Building Using Type 56, My building has 6 zones ( C2,D2,E2, and C1,D1,and E1); But when i did edit the building I had two error: The stating that: "error in automatic heat transfer calculation for surface 24 or it adjacent surface! Automatic heat calculation is only allowed on the surfaces within a zone". I would appreciate any help or advice how to slove this problem.
Thank you

Destin
Content-Type: application/octet-stream; name="BuildingProject.tpf"
Content-Disposition: attachment; filename="BuildingProject.tpf"
X-Attachment-Id: f_f4eh8dqs

Content-Type: application/octet-stream; name="BuildingProject.log"
Content-Disposition: attachment; filename="BuildingProject.log"
X-Attachment-Id: f_f4eh8i34

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