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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Calculating the psi value I<br />
U factor is the heat flow through one meter depth <strong>of</strong> the model.<br />
This is used to calculate the psi value as follows:<br />
Psi value = U factor * length <strong>of</strong> 2D model – sum <strong>of</strong> U value * length <strong>of</strong> flanking element<br />
Associate a U factor with all internal surfaces <strong>of</strong> the model as follows:<br />
1. Create a new U factor: Libraries > U factor names > Add > “unique name” e.g.<br />
Simple_internal_UFactor > close<br />
2. Select the two internal BC: press the shift key while carefully clicking on the two<br />
surfaces > press return and the U Factor window should appear<br />
3. Select the appropriate U Factor name and press OK<br />
<strong>Scottish</strong> <strong>Energy</strong> <strong>Systems</strong> <strong>Group</strong><br />
samuel@esru.strath.ac.uk
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