CFD-based optimization of air quality of an educational institution

Hong Hao; Wenhao Huang; Hongjun Dong; Wen Luo; Guiwen Shi

doi:10.1117/12.2635417

6 May 2022 CFD-based optimization of air quality of an educational institution

Hong Hao, Wenhao Huang, Hongjun Dong, Wen Luo, Guiwen Shi

Proceedings Volume 12256, International Conference on Electronic Information Engineering, Big Data, and Computer Technology (EIBDCT 2022); 1225612 (2022) https://doi.org/10.1117/12.2635417
Event: 2022 International Conference on Electronic Information Engineering, Big Data and Computer Technology, 2022, Sanya, China

Abstract

In order to achieve the purpose of removing indoor pollutants to ensure that children and adults can perform physical and mental activities safely.The TVOC,temperature and wind speed data were monitored throughout the year in an educational institution in Shenyang,and physical and mathematical models were established to carry out transient and steady-state simulations,and the concentration of TVOC and other data were compared and analyzed at the six measurement positions for each time period,and the TVOC flow characteristics and influencing factors were obtained according to the mathematical model simulations.The highest concentration of TVOC was found in December,with an average value of 0.85mg/m³,which is 1.7 times of the standard.Because the density of TVOC is larger than that of air.The 0.7m plane at the lowest height in the simulated field was the most polluted,and the average temperature of 293K is low in winter.Except for the wind speed at the outlet,which was more than 2m/s,but the wind speed in the rest of the area was not good.By changing the ventilation mode to open doors and windows for natural ventilation,changing the air velocity at the air supply outlet to 1.5 times of the actual measurement, and setting the number of air changes to ACH=1.5,the simulation results of these schemes were found to be effective in removing pollutants and improving indoor air quality.

Citation Download Citation

Hong Hao, Wenhao Huang, Hongjun Dong, Wen Luo, and Guiwen Shi "CFD-based optimization of air quality of an educational institution", Proc. SPIE 12256, International Conference on Electronic Information Engineering, Big Data, and Computer Technology (EIBDCT 2022), 1225612 (6 May 2022); https://doi.org/10.1117/12.2635417

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KEYWORDS

Computer simulations

Mathematical modeling

Data modeling

Atmospheric modeling

Environmental sensing

Optimization (mathematics)

Statistical modeling

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