Analysis of Energy Conservation of an Institutional Building using Design Builder Software

Abstract

Buildings contribute impact on CO 2 emission and energy consumption. Electric energy consumption in buildings is about 40% of the total energy consumption of India. In this work building simulation technology is used to evaluate a variety of envelope thermal characteristics and low carbon technology in an integrated manner at the early design stage itself to assist the delivering of sustainable green buildings with a high rating of performance and energy consumption. Building simulation enables designer to identify the key energy loads, test their strategies and compare permutation of design strategy in order to optimize the energy consumption. Design Builder (DB) software is used to carry out a series of sensitivity analysis on set of design parameters, with an aim to achieve a comfortable and energy efficient building. Several parametric studies have been conducted to enable building designers to carry out analysis of energy efficient building model related to building orientation, construction, air infiltration, natural ventilation, window type, openings, and lighting. To calculate the energy saving, basic condition of building model is compared with Energy Conservation Building Code (ECBC) building model. Consider basic condition of building is case A and condition of building according to ECBC is case B.