Building corner thermal insulation - QuickField simulation example
External corners of the building walls are responsible for major heat losses, so it is important to take additional measures to insulate them.
How to find thermal bridging at building corners?
Answer Typical applications Geometry
Given
Task
Result
Engineering question
Set up a plane-parallel QuickField Steady-state Heat Transfer problem for a building corner structure and evaluate thermal bridging from computed field results.
building envelope corners, wall corner insulation zones, thermal bridge locations
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Simulation problem
Problem Type
Plane-parallel problem of heat transfer.
thermal conductivity of brickwork: 0.8 W/K-m
thermal conductivity of plaster: 0.93 W/K-m
air temperature outside: -20 °C, convection coefficient: 14 W/K-m²
air temperature inside: +20 °C, convection coefficient: 8.7 W/K-m²;
Plot temperature fields of various options for external corners thermal insulation.
Temperature distribution and dew point isotherm (10.7°C) for the initial wall corner structure (A) and for the different insulation design options:
B. Rounding the inner corner with plaster
C. Rounding the corner of a wall with bricks
D. Adding the brick layer to the outside corner surface
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