基于夏热冬冷气候冬季非空调工况的真空水流窗热性能测试  

Thermal performance test of vacuum water flow window under non-air conditioning conditions in winter based on hot summer and cold winter climate

作　　者：李骏 吕原丽 刘灿 LI Jun;LYU Yuan-li;LIU Can

机构地区：[1]西华大学,四川成都610000

出　　处：《节能》2022年第2期5-10,共6页Energy Conservation

基　　金：国家自然科学基金项目“真空水流窗的热特性及其节能研究”(项目编号:51808449);创新基金项目“真空水流窗太阳得热系数研究”(项目编号:YCJJ2020067)。

摘　　要：真空水流窗是一种新型透明围护结构技术,其应用能够降低建筑能耗。在成都市搭建试验测试平台,进行真空水流窗、中空水流窗和双层水流窗的对比试验,分析真空水流窗在冬季非空调工况下的热性能。结果表明,真空水流窗和中空水流窗对室内热环境均有良好的调节作用,双层水流窗调节能力略差。在强太阳辐射条件下,真空水流窗的太阳能集热能力显著高于中空与双层水流窗;在太阳辐射较弱时,水流层散热量受外界环境影响较大。相比双层水流窗和中空水流窗,真空水流窗的保温性能更好,因而具有更高的热利用率,节能效果更佳。当供水流量在600 mL/min以下时,实验窗内表面热通量随供水流量的增大明显增加。Vacuum water flow window(VWFW)is a novel transparent facade,which can reduce building energy consumption.In this paper,thermal performance of VWFW,normal triple-glazing water flow window(TWFW)and double-glazing water flow window(DWFW)was compared.An experimental testing was completed in Chengdu,under the non-air-conditioning condition in winter season.The results show that VWFW and TWFW have good potential of indoor thermal environment,while that of DWFW is poor.Under the condition with strong solar radiation,the solar thermal collection capacity of VWFW is significantly higher than those of TWFW and DWFW;while under the small solar intensity condition,heat release of the water layer is influenced by the outdoor environment.The VWFW is advantageous in thermal insulation compared to DWFW and TWFW,resulting in larger thermal utilization efficiency and better energy saving effect.When the water supply flow is less than 600 mL/min,heat gain from the inner surface increases significantly with the increase of water flow rate.

关 键 词：真空水流窗 热性能 保温性 

分 类 号：TU228[建筑科学—建筑设计及理论]