太阳能光催化与多元通风协同作用下室内污染物迁移特性分析  

ANALYSIS OF INDOOR POLLUTANT MIGRATION CHARACTERISTICS UNDER COUPLING EFFECT OF SOLAR PHOTOCATALYSIS AND HYBRID VENTILATION

作　　者：何建炜 黄晓燕[1] 黄若楠 蔡阳 赵福云[3] HE Jianwei;HUANG Xiaoyan;HUANG Ruonan;CAI Yang;ZHAO Fuyun(Energy and Electricity Research Center,Jinan University,Zhuhai 519070,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]暨南大学能源电力研究中心,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,福州350116 [3]武汉大学动力与机械学院,武汉430072

出　　处：《环境工程》2024年第4期148-156,共9页Environmental Engineering

基　　金：能源与环境光催化国家重点实验室开放基金“纳米TiO2光催化太阳能通风墙及其室内污染物净化机理研究”(SKLPEE-KF202213);2022年广东省基础与应用基础研究基金自然科学基金面上项目“亚热带地区相变型光伏复合建筑围护结构室内热环境调控特性”(2023A1515010681)。

摘　　要：为实现太阳能光催化通风墙系统全年空气净化同时强化室内通风,提出一种太阳能光催化与多元通风协同的模型,并分析了其冬、夏季污染物迁移特性。通过计算流体力学方法研究了太阳光照强度以及风机初始风速对系统污染物去除率与综合评价指标的影响。数值模拟结果表明:所建立的多元通风污染物去除协同模型可靠且可行;随着光照强度增大,冬季模型综合评价指数逐渐升高,从0.00提升至1.00,而夏季模型整体呈负相关,从0.50降低至0.37;随着风机初始风速提高,冬季模型综合评价指数逐渐减小,降幅高达97%,而夏季模型综合评价指数呈先增大后减小再增大规律。可见,通过调整外界热流输入以及初始风速对促进室内污染物去除具有积极意义。To realize all-year-round air purification together with strengthening indoor ventilation in indoor environment,this study has numerically proposed a solar photocatalytic ventilation wall system coupling with hybrid ventilation and further investigated the diffusion characteristics of pollutants in winter and summer.Based on computational fluid dynamics,key parameters of solar radiation intensity and initial velocity have been comprehensively studied to analyze the effects on system pollutant removal rate and comprehensive evaluation index.The simulated results showed that the collaborative model for pollutant removal and hybrid ventilation is reliable and feasible.Especially,the comprehensive evaluation index for winter mode gradually increased from 0.00 to 1.00 with an increase in radiation intensity,while the summer model showed a negative correlation from 0.50 to 0.37.Increasing the initial velocity caused the comprehensive evaluation index of the winter model to decrease by up to 97%,while that of the summer model initially increased,then decreased and finally increased again.The adjustment of the external heat flow input and initial velocity has positive significance for promoting the removal of indoor pollutants.

关 键 词：多元通风 太阳能光催化通风墙 冬季采暖 夏季隔热 全年空气净化 

分 类 号：X51[环境科学与工程—环境工程]