The Role of Building Thermal Simulation for Energy Efficient Building Design

In this paper, the results of building thermal simulation of office buildings in Jakarta, Indonesia are presented using the simulation and visualization tool of DesignBuilder, an Energy Plus based dynamic thermal simulation engine. The simulation results show that for new office design, building envelope optimization and utilizing high efficiency office equipment and HVAC system, the annual energy consumption decreased by 43%. For the renovated building, implementing task lighting will reduce the energy consumption by 25%. In addition, applying task lighting with scenario improving glazing material with increasing chiller's efficiency will give additional potential reduction of 30%.