Evaluation of Energy-Efficient Office Building through Glass Thermal Properties, Shading Devices and Window-wall Ratio

Abstract

Sustainable development is a more concerning topic due to rapid urbanization, population growth, and comfort in building services. As India is a developing country it consumes almost 30% of energy in lighting, cooling, and heating form, in the commercial building sector.  By implementation or adopting energy-efficient codes could provide lead to a sustainable future. In India, BEE has introduced ECBC (Energy Conservation Building Code) 2017 to optimize energy use by using passive strategies and providing comfort levels to occupants in a commercial building. This paper will present the energy performance of the building, for developing process data needed for modeling a new commercial office building was collected from past research related to energy-efficient building. By adopting ECBC prescriptive compliance approaches the reference office building was model through simulation software Design Builder along with the Energy Pulse engine. Using energy-efficient code as a guideline further evaluation of the same building is done by changing 3 building parameters via window glass with increase WWR and shading devices. After simulating the model the results were analyzed for annual total energy consumption and all summer energy consumption. Making use of ECBC's prescriptive compliance approach and simulation software will help in easy implementation and imposing. The use of such codes will lead to a reduction in future barriers and using software will lead to a reduction of manual calculation barriers. After that lastly, the Discount payback period analysis was done for 10% and 6% rates.