摘要
Trombe墙是一种应用广泛的太阳能被动采暖结构,但依然存在夏季过热、冬季室内污染物易积累等问题。热催化净化技术是在热的作用下降解室内污染物的绿色净化技术,太阳能光热复合催化技术在热催化的基础上耦合光催化技术,不仅能同时利用光能和热能驱动净化反应,还可产生协同效应来提高反应效率。基于此,将热催化剂和光热复合催化分别应用于Trombe墙,学者们提出净化百叶型Trombe墙,冬季实现采暖和甲醛净化,夏季实现净化的同时,能够将太阳辐射反射到室外,缓解室内过热。分别比较了基于热催化和光热复合催化技术的百叶型通风墙的热性能和甲醛降解性能。搭建了光热催化百叶型Trombe墙和实验测试系统,在实际工况下分别测试了热催化和光热复合催化技术的百叶型通风墙的热性能和甲醛降解性能。研究结果表明,光热催化百叶型Trombe墙与热催化百叶型Trombe墙都具有较好的采暖性能与甲醛净化性能,前者的甲醛净化性能更好,后者具有较高的采暖性能;在11月份,当百叶翻转角度为45°时,光热催化百叶型Trombe墙的热效率和甲醛降解性能最佳。
Trombe wall is a widely used solar passive heating structure,but problems such as overheating in summer and easy accumulation of indoor pollutants in winter remain.Thermal catalytic purification technology is a green purification technology that degrades indoor pollutants under the action of heat.Solar photothermal composite catalytic technology coupled with photocatalytic technology on the basis of thermal catalysis not only can utilize light energy and thermal energy to drive purification reactions,but also generate synergistic effects to enhance reaction efficiency.Based on this,thermal catalysis and photothermal composite catalysis were respectively applied to Trombe walls,and a novel Trombe wall with purification blinds was proposed.Heating and formaldehyde purification were achieved in winter,purification was achieved in summer and solar radiation can be reflected to the outside to alleviate indoor overheating.The thermal performance and formaldehyde degradation performance of louvered ventilation walls based on thermal catalysis and photothermal composite catalysis technologywere compared.Firstly,a photothermal catalytic louvered Trombe wall and an experimental testing system were built,and then the thermal performance and formaldehyde degradation performance of the louvered ventilation wall using thermal catalysis and photothermal composite catalysis technology were tested under actual operating conditions.The results showed that both the Trombe walls with photothermal catalytic blinds and thermal catalytic blinds have good heating performance and formaldehyde purification performance.The former has better formaldehyde purification performance,while the latter has higher heating performance.In November,when the turning angle of blinds was 45°,the thermal efficiency and formaldehyde degradation performance of the Trombe wall with photothermal catalytic blinds are the best.
作者
顾涛
李雨林
樊苗苗
李念思
余本东
GU Tao;LI Yulin;FAN Miaomiao;LI Niansi;YU Bendong(Guangdong Provincial Key Laboratory of New and Renewable Energy Research and Development,Guangzhou 510640,China;College of Urban Construction,Nanjing University of Technology,Nanjing 210009,China)
出处
《新能源进展》
CSCD
2023年第4期348-355,共8页
Advances in New and Renewable Energy
基金
广东省新能源和可再生能源研究开发与应用重点实验室开放基金项目(E239kf1001)
江苏省自然科学基金面上项目(BK20221315)
国家自然科学基金项目(52238004,52278111)。
作者简介
顾涛(1999-),男,硕士研究生,主要从事太阳能多功能材料及其在建筑环境中的应用研究;通信作者:余本东(1991-),男,博士,教授,主要从事太阳能光电光热综合利用研究,E-mail:yubendonglns@163.com。
