Optimisation of the thermal and structural performance of an integrated patio door

Andy Wilkins, Adam Ellery, Nev Fowkes, Wang Jin, Andrew Macfarlane, Glen Pacholke, Ravindra Pethiyagoda, Phil Stewart, Phil Watson, Ayham Zaitouny


Frames for glass doors and windows need to be designed to be both thermally insulating and structurally strong, and there are computer programs which accurately determine the required properties. However, these programs are complex and expensive to use and are not useful for initial design work. By identifying the structural and insulating roles of the various layers within the frames we obtain simple results for the thermal transmittance and structural properties of frames. These results can be used for design guidance. More accurate (but still simple) results were obtained and coded in Excel for easy processing.

  • R. J. Roark ``Formulas for stress and strain'' McGraw-Hill (1965), 4th ed.
  • ``Thermal performance of windows, doors and sharing devices–-Detailed Calculations''. iso 15099:2003(E)
  • ``Thermal performance of windows, doors and shutters–-Calculation of thermal transmittance–-Part 2 Numerical Method for Frames''. bs eniso 10077-2-2003
  • ``Thermal performance of windows, doors and sharing devices–-Part 1 General''. bs en 10077-1:2006


Heat transfer ; Linear elasticity ; Doors and Windows

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DOI: http://dx.doi.org/10.21914/anziamj.v56i0.9407

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ANZIAM Journal, ISSN 1446-8735, copyright Australian Mathematical Society.