410-不同窗帘材料对川西地区供暖房间的热影响分析.pdfVIP

不同窗帘材料对川西地区供暖房间的热影 响分析 重庆大学城市建设与环境工程学院，重庆 400045 曹耕硕 1 黄屹 刘勇 王勇 摘 要：对于日间太阳辐射较强而夜间室外气温较低的川西地区，外窗成为日间得热夜 间失热的重要建筑构件，窗帘作为其必备附属设施，对外窗的节能性具有重要作用，其调控 方式也是外窗节能的重要研究内容。本文基于四川省甘孜州康定县某居住建筑，根据其外窗 传热过程建立了外窗传热得热、失热数学分析模型，并通过理论计算，得出窗帘调控可使房 间平均净得热量增加 20%。现有供暖能耗计算忽略了其冷辐射散热，为了分析窗帘材质对外 窗冷辐射的影响，建立了外窗夜间冷辐射计算模型，并通过理论计算分析，得出采用绒布窗 帘和镀铝膜窗帘相较于无窗帘工况，外窗夜间辐射传热量分别降低 43%和 70%。通过实地测 试验证了理论计算分析的实际效果，实测数据表明相比无窗帘工况，绒布窗帘和镀铝膜窗帘 可分别提升室温 1-3℃，窗帘调控对房间温度提升及室内热环境的改善具有显著作用，本研 究为降低该地区的供暖能耗及改善室内热环境提供相应的理论依据。 关键词：窗帘调控；外窗冷辐射；外窗节能；太阳辐射；金属镀膜窗帘 Analysis of Thermal Effect of Different Curtain Materials on Heating Room in Western Sichuan (1. Key Laboratory of the Three Gorges Reservoir Region’s Eco-Environment, Ministry of Education, Chongqing University, Shapingba District, Chongqing 400045, China; 2. National Centre for International Research of Low-carbon and Green Buildings, Chongqing University, Shapingba District, Chongqing 400045, China) Gengshuo Cao, Yi Huang, Yong Liu, Yong Wang Abstract: The window is a device of heat gain and loss in the western Sichuan area where the solar radiation is high during the day and the temperature is low at night. Curtain is an essential device of light environment control that play an important role in energy saving of window. Curtain adjustment is an important research to energy saving of window. In this study, a mathematical model to describe the heat transfer process of window was established based on an actual residential building in Kangding. The theoretical calculation showed that the curtain adjustment could improve the heat gain by 20%. In order to analyze the effect of curtain material on the cold radiation of window, a calculation model to describe cold radiation of window was established based on the actual situation of the test site. The theoretical calculation showed that the flannelette curtain and the curtain with metal film