Energy management in residential building using phase change materials

This study aimed to calculate the heat losses from the building through walls, windows, and waste energy in boiler flue gases, where the problem of this study is to reduce the heat loss through the building using phase change materials and to extract the waste energy from boiler flue gas and store it in phase change materials as a thermal mass storage. The study revealed a group of results among which by adding a new layer from phase change material to the wall, it behaves as a thermal insulation due to low thermal conductivity and contributed to reduce heat loss through walls by (72%). In the south side of the building phase change material work as a thermal energy storage and contributed to reduce heat load by (43%) of the total heat load. The study found that the paraffin wax is suitable for use in building applications because of its physical properties and relatively low cost, and there are a significant amount of energy wasted in boiler flue gases, which can be recovery to use as a heating sourc