Abstract
A numerical three-dimensional investigation is performed to estimate the optimum doping content (i.e. thickness) of the PCM filling a double glazed window. For the summer weather of Baghdad, Iraq. Finite Volume method combined with the enthalpy method is utilized to acknowledge the conduction related with phase change problems within the wax by using a constructed FORTRAN (F90) program. Based on the constructed numerical model, the transient heat transfer characteristics of the insulation were calculated and analyzed in detail. The obtained results indicate that optimum doping content of wax filling the window can be estimated, The required thickness of wax paraffin (melting point 40 °C) to keep temperature within the required range were as follows: May 2 cm, June 3 cm, July 3.5 cm, August 3.5 cm, September 3 cm and October 1.5 cm.
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