Energy Conservation in Different Walls Construction in India by the Application of Insulation.

The energy conservation has become an important aspect in building construction. The energy in building may be considered from two different perspectives. Firstly the energy that goes into the construction of the building using a variety of materials. Secondly the energy that is required to create a comfortable environment within the building. Energy saving due to thermal insulation of brick walls construction in India for a representative room of size 5 m x 4 m x 3.5 m are consider. This investigation indicates the importance of the roof insulation, which results in a reduction up to 79 % of the heating load. The house is studied with brick wall material and insulation( Expanded Polystyrene) on wall and roof. Study suggests that brick wall with insulation reduce the energy requirement by 20 %. For same thickness of insulation, energy savings are much more with roof insulation than wall insulation. In this analysis an approach for selecting the most economic insulation material is calculated. Expanded Polystyrene is the highest economical material among the four insulation material ( i.e Expanded Polystyrene EPS , Extruded Polystyrene XPS , Foamed Polyurethane and Glass Wool). Optimum insulation thickness of brick wall construction will calculated by Degree-Day method.