Analysis of Thermal Bridges - Scottish Energy Systems Group ...
Analysis of Thermal Bridges - Scottish Energy Systems Group ...
Analysis of Thermal Bridges - Scottish Energy Systems Group ...
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Overall heat transfer coefficient or U Value<br />
T int<br />
T<br />
T 2<br />
1<br />
T<br />
T 4<br />
3<br />
T ext<br />
x 1<br />
x 2 x 3<br />
Q<br />
= UA∆T<br />
1<br />
U<br />
=<br />
AΣR<br />
=<br />
h<br />
conv _ i<br />
1<br />
+<br />
h<br />
rad _ i<br />
+ Σ<br />
x<br />
k<br />
+<br />
h<br />
conv _ e<br />
1<br />
+<br />
h<br />
rad _ e<br />
<strong>Scottish</strong> <strong>Energy</strong> <strong>Systems</strong> <strong>Group</strong><br />
samuel@esru.strath.ac.uk
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