Parametric equations for energy and load estimations for buildings in India

Detailed simulations have been performed for a single zone building to calculate the maximum heating and cooling loads as well as specific annual energy consumption for a single zone building. Numerical results have been used to derive parametric equations as a function of the thickness of insulation as well as the surface to volume ratio (A/V) taking into account the effect of increasing height as well as increasing length and width. For un-insulated building, the energy consumption increases steeply with increasing height, whereas for an insulated building, the energy consumption decreases slightly. For increasing lengths and widths, the change in energy consumption is a mild positive slope. The optimum thickness of the insulation obtained in the paper corresponds to the recommended U-values of roof and the walls in the building code of India, U being the total heat transfer coefficient.