Determination of Thermal Performance of Wall Materials for the Construction of Green Building

The thermal performance of a building depends on a large number of factors. The Energy Conservation Building code 2007 (ECBC-Given by Bureau of Energy conservation, Government of India) suggest that the wall of a Building should minimize Conduction losses by using modern/conventional wall material preferably with insulation like air gaps etc. They can be summarized as design variables (geometrical dimensions of building elements such as walls, roof and windows, orientation, shading devices, etc.); material properties (density, specific heat, thermal conductivity, transmissivity, etc.); weather data (solar radiation, ambient temperature, wind speed, humidity, etc.); and building's usage data (internal gains due to occupants, lighting and equipment, air exchanges, etc.). A total of 13-different types of wall material are experimentally tested under controlled condition to measure their thermal performance including new material like Gyprop(M/s Saint Gobain) for a given size of wall (21cm). Based on the thermal resistance value brick type-2 and Gyprop (M/s Saint-Gobain, Bangalore) with cement mortar with insulation offers the best thermal resistance for the construction of a green wall.