Design of passive cooling system for a building in composite climatic conditions in India

A combined solar chimney?wind tower concept has been developed for a typical urban institution building in Delhi. Due to site limitations, the concept of solar chimney based ventilation has been introduced through roof mounted thermo-siphon air panels of 70 m? absorber area. A wind tower provided on the suction side of fresh air has potential for cooling incoming air by 5?C by using 250 m? of stone cladding. Openings for airflow inside the buildings are designed to suit smooth natural ventilation. Evolution of the final design through various constraints is explained in this paper.