Investigation of heat transfer of wall with and without using phase change material

As part of reducing energy use for building application like cooling and heating, the phase change
material (PCM) plays a vital role, it be incorporated into building structure and materials in an effective
manner. In this research concentrated to find the effect of heat transfer of PCM filled hollow block
(wall) and unfilled one, tested in a natural climatic condition of Chennai. In this regard Organic
Material OM29 PCM is chosen based on average temperature persists on the selected location, it acts as
thermal barrier also minimize the heat entering to the room. Heat gain of the building wall is
respective to seasonal variations based on that the selected OM29 is to be effective only where the
clear sunny days, over the period the PCM performance is to be optimized. The result shows that
temperature drop of 5.7% and heat gain reduction of 33% are observed across the dimensions of thehollow block in the indoor surface, the temperature at various points in a surface is similar. The resultsshowed the selected PCM have great influence in reduction of heat transmission from external face tointernal face in hot climates, however for a moderate climate, the solar intensity differs from day to dayso cooling transmission loads it varies, so employability of PCM influenced by ambient factors. The