Application of personalized thermal comfort equipment to naturally ventilated classrooms

In a warm environment, naturally ventilated university classrooms may suffer overheated risk due to warm weather and high occupancy density, affecting students’ thermal comfort and learning efficiency. To study the effect of personalized thermal comfort equipment (desktop fans and ventilated cushion) on the thermal comfort of university classroom occupants, divides the subjects into two groups — with and without personalized thermal comfort equipment (PCS group and CON group), and conducts a subjective questionnaire survey during the normal class. The results show that the neutral temperature of the PCS group is 28.2 ℃, 2.3 ℃ higher than that of the CON group (25.9 ℃). The upper limit temperature of the 80% acceptability of the PCS group is 32.7 ℃, 3.5 ℃ higher than that of the CON group (29.2 ℃). Students’ thermal comfort and upper acceptable temperature limit can be improved by using personalized thermal comfort equipment.