机械辅助式太阳能光催化复合通风室内污染净化分析  

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

作　　者：蔡阳 黄若楠 何建炜 刘子瑞 赵福云[3] CAI Yang;HUANG Ruonan;HE Jianwei;LIU Zirui;ZHAO Fuyun(School of International Energy,Jinan University,Zhuhai 519070,Guangdong,China;State Key Laboratory of Photocatalysis on Energy and Environment,Fuzhou University,Fuzhou 350116,China;School of Power and Mechanical Engineering,Wuhan University,Wuhan 430072,China)

机构地区：[1]暨南大学国际能源学院,广东珠海519070 [2]福州大学能源与环境光催化国家重点实验室,福建福州350116 [3]武汉大学动力与机械学院,湖北武汉430072

出　　处：《西安工程大学学报》2025年第1期72-80,共9页Journal of Xi’an Polytechnic University

基　　金：广东省基础与应用基础研究基金自然科学基金面上项目(2023A1515010681);广东省普通高校重点领域专项项目(2022ZDZX1005);能源与环境光催化国家重点实验室开放基金(SKLPEE-KF202213)。

摘　　要：太阳能光催化自然通风因其具有被动式通风和室内污染物净化作用受到广泛关注,但存在通风净化效率不高等缺陷。利用机械通风加以辅助构建光催化多元通风能够有效克服被动式通风不足,同时提高室内污染物净化效率。首先构建了光催化多元通风墙与室内环境耦合的污染物流动扩散模型。其次分析了该通风墙结构优化与室内气流分布之间的联系。最后探讨机械通风辅助相较于传统模型对室内污染物通风净化能效的影响,并对模型系统能耗进行分析,从而验证模型的实用性与室内舒适性。结果表明:机械辅助太阳能光催化自然通风模型较传统模型的室内污染物平均质量分数可降低89%且净化率最高可达29%。当模型倾角高为0.15 m时,通风性能最优且通风量可达0.349 m^(3)/s。系统模型的热性能得到优化且最高可降低11 J,能够有效避免传统通风墙模型夏季室内过热难题。研究充分考虑建筑节能优化与室内舒适性并降低传统太阳能自然通风墙季节局限性影响,为提升太阳能通风墙性能与改善室内环境提供参考和依据。Solar photocatalytic natural ventilation has attracted wide attention because of its passive ventilation and indoor pollutant purification effect,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 0.15 m,the ventilation performance is optimal and the ventilation volume can reach 0.349 m^(3)/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.

关 键 词：太阳能 自然通风 机械通风辅助 室内环境 通风净化 

分 类 号：TU834[建筑科学—供热、供燃气、通风及空调工程]