[TRNSYS-users] loss coefficient pipe/duct

[Roel De Coninck (3E)]

Jean,
you have to convert your loss coefficient (based on pipe length) into a loss coefficient based on pipe surface.  Calculate the pipe surface for 1 m pipe length and divide your coefficient by this surface in order to find the value in W/m²K

regards,
roel

 
 
 
 

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-----Original Message-----
From: jean.goetschy at insa-strasbourg.fr [mailto:jean.goetschy at insa-strasbourg.fr] 
Sent: woensdag 25 juni 2008 9:40
To: TRNSYS USERS
Subject: [TRNSYS-users] loss coefficient pipe/duct

Hi every body,

I have a little question about the Type31 Pipe_Duct.
I also have a problem to give a value for the loss coefficient because  
TRNSYS want a loss coefficient in W/m²K. The problem is that i only  
find loss coefficient in W/m.K.... so, if someone of you have an answer.

thank you very much

regards, Jean



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