Recent Advances in Passive Cooling Techniques for Indoor Thermal Comfort

Shivendra Singh; Amit Vishwakarma; N.K. Sagar

doi:10.69968/ijisem.2026v5i2507-514

Authors

Shivendra Singh Assistant Professor, Department of Mechanical Engineering, Sagar Institute of Research and Technology, Bhopal
Amit Vishwakarma Assistant Professor, Department of Mechanical Engineering, Sagar Institute of Research and Technology, Bhopal
N.K. Sagar Head of Department, Department of Mechanical Engineering, Sagar Institute of Research and Technology, Bhopal

DOI:

https://doi.org/10.69968/ijisem.2026v5i2507-514

Keywords:

Passive Cooling Techniques, Thermal Comfort, Natural Ventilation, Air Quality, Indoor Air Temperature

Abstract

Passive cooling techniques are proving to be effective and sustainable approaches to achieve adequate indoor thermal comfort in buildings with less energy consumption. With the rising atmospheric temperature and the rapid growth of the urban population along with the negative environmental effects of air-conditioning systems, energy efficient cooling solutions have become more important than ever. This review paper covers the recent developments of the passive cooling methods to provide comfortable indoor environments by natural cooling process and climate responsive building design. The study emphasizes to the main passive cooling methods: natural ventilation, shading systems, thermal mass, evaporative cooling, windcatchers, green roofs, and innovative building material. New advances in adaptive ventilation, smart shading and sustainable architecture are also mentioned. Also, the review will investigate the contribution of passive cooling to achieve a better indoor environment and to enhance the well-being of the occupants. The results show a significant improvement in thermal comfort and a decrease in cooling loads and environmental impacts when multiple passive cooling strategies are combined. In conclusion, passive cooling technologies are viable and sustainable solutions for future building design with an aim to low energy consumption.

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