The green side of passive cooling: building facades inspired by evapotranspiration in trees
Monish Siripurapui*, Pranjal Maheshwari
Ant Studio Pvt Ltd, Noida, India
DOI: 10.62744/CATE.45273.1160-131-139
Email: monish.siripurapu@ant.studio
Abstract:
Buildings suffer from uncontrolled heat gain through their skin, which creates an urgent need for thermal comfort. In hot climates such as India, a growing economy with a rising per capita income is leading to an expected rise in cooling demand-by 11 times in the next two decades. The use of passive cooling strategies to reduce direct heat gain through building envelopes is an integral step in reducing the energy demand for cooling. The system works as a shading device similar to adjustable louvers, moreover, the terracotta's porosity mimics cooling evapotranspiration. It adapts to sun angle, building orientation, and design. It combines terracotta and water to effectively cool, especially in multi-story buildings. The efficiency of the proposed passive cooling system was tested in the composite climatic regions of Raipur and Hyderabad, the nature-inspired passive cooling system reduced cooling energy needs by 30% and 47% respectively. The future of space cooling in buildings can benefit by using efficient passive cooling envelopes that can reduce the heat gain in the buildings. Climatically adaptive designs hold the potential to influence the shape of future buildings, landscapes, and cities, perhaps with
earthy tones.
Keywords: Envelope Cooling, Passive Cooling, Building Fa?ade, Climate Responsive, Biomimicry