Abstract
A field study was carried out during monsoon and winter seasons of 2015–16 to investigate the thermal environment and thermal comfort in naturally ventilated (NV) indoor environment of classrooms of a Government residential school located in composite climatic zone of Ambala, India. A total of 640 responses from 130 students in the age group between 10 and 18 years belonging to rural background were collected. An indoor operative temperature of 27.1°C was recorded as neutral temperature. The slope of the regression line plotted between thermal sensation and indoor operative temperature was found to be 0.056/°C which varies considerably from earlier similar studies on classrooms across tropics. It has been found that the students feel comfortable within operative temperature range of 15.3–33.7 °C for 80% acceptability. This range exceeds beyond the comfort temperature range as specified by Indian and international standards for adult population. The results show that the heat tolerance of the students is quite high. In India, till so far there are no thermal comfort standards for school classrooms in any of the climatic zones. The findings of this study should provide guidelines for India specific thermal comfort standards for schools for the efficient use of energy.
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