Experimental investigation of phase change materials for insulation of residential buildings

In this paper, an experimental study has been conducted for using PCM as thermal insulation materials by its incorporating with layers of the walls and the ceiling. The effect of PCM and its role in improvement of thermal performance and thermal comfort is experimentally studied. Two room's models have been built, the first model is a standard room for comparison and the second model is an experimental room for testing. Wasit university in Kut city, (32.5° N) latitude, was the place of the building models and testing of PCM. The type of PCM which was used in this experiment is paraffin wax with a melting point (44 °C). Many cases were studied according to the thickness of the PCM and according to the orientation (North wall, South wall, East wall, West wall, and ceiling). Results obtained showed a reduction in indoor temperature of the zone and the reduction in cooling load and as a result saving in electricity consumption with using PCM as insulation materials.