机械辅助式太阳能光催化复合通风室内污染净化分析

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中图分类号：TU834 文献标志码：ADOI：10.13338/j.issn. 1674-649x.2025.01.009

Purification analysis of indoor air pollutants by mechanical ventilation-assisted solar photocatalytic natural ventilation

CAI Yang1'²，HUANG Ruonan1 ，HE Jianwei1 ，LIU Zirui1 ，ZHAO Fuyun³ （1.School of International Energy，Jinan University，Zhuhai 5l9o7o，Guangdong，China;

2.State Key Laboratory of Photocatalysis on Energy and Environment，Fuzhou University， Fuzhou 350116，China; 3. School of Power and Mechanical Engineering，Wuhan University，Wuhan 43oo72，China）

Abstract Solar photocatalytic natural ventilation has attracted wide attention because of its passive ventilation and indoor pollutant purification efect，but it has low ventilation and purification efficiency. Using mechanical ventilation to assist in the construction of photocatalytic multiple ventilation can effectively overcome the lack of passive ventilation，and improve the purification efficiency of indoor pollutants. A pollutant flow diffusion model coupled between photocatalytic multiple ventilation wall and indoor environment was constructed. Secondly，the connection between the structural optimization of the ventilation wall and the indoor air flow distribution was analyzed.Finally，the influence of mechanical ventilation assistance on indoor pollutant ventilation and purification energy efficiency of the model system was analyzed to verify the practicability and indoor comfort of the model. The results show that the average indoor concentration of the mechanically assisted solar photocatalytic natural ventilation model can be reduced by 1 step compared with the traditional model，and the purification rate can be up to 29% .When the inclination height of the model is 0.15m ，the ventilation performance is optimal and the ventilation volume can reach 0.349m3/s . The thermal performance of the system model is optimized and can be reduced by up to 11 J，which can effectively avoid the indoor overheating problem of the traditional ventilation wall model in summer.The research fully considers the optimization of building energy saving and indoor comfort and reduces the seasonal limitation impact of traditional solar natural ventilation wall，so as to provide reference and basis for improving the performance of solar ventilation wall and the indoor environment.

Keywordssolar energy;natural ventilation;ventilation assistance;indoor environment;ventilation and purification

0引言

当前能源需求规模随着世界人口增长不断扩大，全世界 80% 以上能源由化石能源提供，由此带来严重的能源危机[1-2]。（剩余11423字）