Physics:Heat loss due to linear thermal bridging
From HandWiki
Short description: Used to calculate the energy performance of buildings
The heat loss due to linear thermal bridging ([math]\displaystyle{ H_{TB} }[/math]) is a physical quantity used when calculating the energy performance of buildings. It appears in both United Kingdom [1] and Irish[2] methodologies.
Calculation
The calculation of the heat loss due to linear thermal bridging is relatively simple, given by the formula below:[3]
- [math]\displaystyle{ H_{TB} = y \sum A_{exp} }[/math]
In the formula, [math]\displaystyle{ y = 0.08 }[/math] if Accredited Construction details used, and [math]\displaystyle{ y = 0.15 }[/math] otherwise, and [math]\displaystyle{ \sum A_{exp} }[/math] is the sum of all the exposed areas of the building envelope,
References
- ↑ "User Manual, JPA Designer". http://www.techlit.co.uk/JPA%20Designer%20manual%20v5.pdf.
- ↑ "Dwelling Energy Assessment Procedure". 2006. http://www.sei.ie/getFile.asp?FC_ID=1591&docID=188.
- ↑ "Steel Construction and Thermal Bridging". http://www.steelconstruction.org/steelconstruction/view?entityID=1675&jsp=nsc_source&sessionID=-1166914701324&entityName=magazinearticle. [|permanent dead link|dead link}}]
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