Abstract
Indoor air quality in university classrooms is closely related to human thermal comfort, and proper air distribution can dilute indoor air pollutants in time and create a healthy and comfortable indoor environment. This paper selects the classroom of a university in Shenyang as the research object, through numerical simulation of the ventilation modes of up-flow and up-return, up-flow and down-return, and side-flow and down-return, the indoor temperature field, velocity field, CO2 concentration field and PMV-PPD index were obtained. The results show that the most ideal temperature field, velocity field, CO2 concentration field and thermal comfort can be obtained by using the side-flow and down-return air supply mode in the classroom, the temperature in the classroom is in the range of 16–24 ℃, the wind speed is low, and the air distribution is uniform in the area where people are concentrated; The pollutant removal efficiency is high, and CO2 is taken away from the release source position with the air flow, which reduces the CO2 exposure intensity of the breathing microenvironment; Students’ thermal feeling is in a slightly warm state, and the percentage of dissatisfaction with the thermal environment is the lowest.
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Acknowledgement
This paper is supported by the scientific research project of Liaoning Provincial Department of Education: Optimal control of indoor local thermal comfort environment based on indoor personnel positioning technology (No. Z2219121).
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Kang, Z., Yin, N., Hao, B., Wang, Y. (2024). Simulation of Different Ventilation Methods on Indoor Air Quality and Thermal Comfort in College Classroom. In: Guo, W., Qian, K., Tang, H., Gong, L. (eds) Proceedings of the 2023 International Conference on Green Building, Civil Engineering and Smart City. GBCESC 2023. Lecture Notes in Civil Engineering, vol 328. Springer, Singapore. https://doi.org/10.1007/978-981-99-9947-7_72
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DOI: https://doi.org/10.1007/978-981-99-9947-7_72
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