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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Mathematical pro<strong>of</strong> <strong>of</strong> psi values from U factors<br />
(Not required for generating psi values from THERM)<br />
ψ<br />
L∆T<br />
ψ<br />
=<br />
=<br />
=<br />
=<br />
=<br />
P<br />
P<br />
U<br />
U<br />
U<br />
2D<br />
2D<br />
P<br />
P<br />
L∆T<br />
f<br />
f<br />
f<br />
−<br />
−<br />
1D<br />
1D<br />
L∆T<br />
− ΣUA∆T<br />
L∆T<br />
L − ΣUL×<br />
1<br />
1<br />
L − ΣUL<br />
<strong>Scottish</strong> <strong>Energy</strong> <strong>Systems</strong> <strong>Group</strong><br />
samuel@esru.strath.ac.uk