The urban population in India is growing at a fast rate along with the growth in the construction of residential concrete houses. Though a majority of these residential buildings are still of naturally ventilated type due to the lower-middle-income group of the population, these buildings will be subjected to indoor overheating with climate change in future climatic years. This can cause severe thermal discomfort among the indoor occupants and reduce their well-being and satisfaction towards the indoor environment, and increase the possibilities of heat-related illness and even death. This paper presents the results of the effect of climate change on the thermal comfort of indoor occupants of low-rise naturally-ventilated buildings in two different physiographic and climatic regions of eastern India. The assessment methodology of indoor overheating hours and indoor overheating degree based on adaptive temperature limits are used to evaluate the indoor condition. Different simulation variants of archetypes, orientation, wall types, ventilation rates, roof types, etc. resulted in 13,824 conditions. The results show that these concrete dwellings existing in the region are unable to suppress the effects of global warming and the indoor environment deteriorates in these buildings in future conditions. The decrease in the number of annual overcooling hours caused by the increasing ambient temperature due to global warming is lesser than the increase in the number of annual overheating hours, which ultimately results in the decline of the number of indoor annual comfortable hours.

随着住宅混凝土房屋建设的增长，印度的城市人口正在快速增长。尽管这些住宅建筑中的大多数由于人口中低收入群体的原因仍然是自然通风的，但这些建筑在未来的气候变化中将受到室内过热的影响。这会导致室内居住者严重的热不适，降低他们对室内环境的幸福感和满意度，并增加与热相关的疾病甚至死亡的可能性。本文介绍了气候变化对印度东部两个不同地理和气候区域的低层自然通风建筑室内居住者热舒适度影响的结果。采用基于自适应温度限值的室内过热小时数和室内过热度评估方法对室内状况进行评估。原型、方向、墙壁类型、通风率、屋顶类型等的不同模拟变体产生了 13,824 个条件。结果表明，该地区现有的这些混凝土住宅无法抑制全球变暖的影响，未来这些建筑的室内环境会恶化。全球变暖导致的环境温度升高导致的年过冷小时数的减少小于年过热小时数的增加，最终导致室内年舒适小时数的下降。