Potential of Energy Savings Through Distribution of Window and Daylight Integration in Indian Building
Abstract
Application of glazing is increasing in modern building architecture around the world. Glazed surface on building envelope provide good aesthetic view and nature light inside the working space. Window glazing system in building envelope is not only responsible for healthy daylight penetration into the working space but also greatly influences energy consumption of the building. Daylighting inside the building reduces lighting energy consumption of the building but at the same time heat gain of the building increases. Increasing heat gain causes higher cooling energy requirement of the building. Building sector is one of the largest global energy consumer hence conservation of energy in building is essential. In the present study window area has been distributed to different wall for better integration of daylight through the window combinations. Artificial lighting system is controlled according to daylighting in building for better energy efficiency of the building. A parametric study has been conducted with five different WWR and distribution of window around the building envelope for the climatic condition of Kolkata located in India. The applicability of the results has been tested with two more locations in Indian climatic conditions. Results shows substantial energy savings opportunity is there with control daylight integration through distribution of window into the building in India.
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