Thermal performance of thermochromic smart windows in different indoor environments

被引:0
|
作者
Li, Wenxin [1 ]
Tao, Tao [1 ]
Xu, Jiakui [1 ]
Chen, Zhenqian [1 ,2 ,3 ]
机构
[1] Southeast Univ, Sch Energy & Environm, Nanjing, Peoples R China
[2] Southeast Univ, Sch Energy & Environm, Jiangsu Prov Key Lab Solar Energy Sci & Technol, Nanjing, Peoples R China
[3] Southeast Univ, Sch Energy & Environm, Key Lab Energy Thermal Convers & Control, Minist Educ, Nanjing, Peoples R China
基金
中国国家自然科学基金;
关键词
Thermochromic smart window; Phase transition; Air-conditioning; CFD; Thermal performance; ENERGY;
D O I
10.1016/j.enbuild.2024.114941
中图分类号
TU [建筑科学];
学科分类号
0813 ;
摘要
Thermochromic (TC) smart windows can passively respond to the exterior and interior temperature, which further adjust their indoor thermal environments due to the varied photo-thermal parameters. This study investigated the thermal performances of practical TC windows in a room with/without air-conditioning or with stratified temperature distribution through a validated 3D CFD model. The application of TC windows could decrease the window, indoor ambient and floor temperatures, and also improve their temperature uniformity. The upper interior window could be 3.13 degrees C higher than the bottom in a room without air-conditioning, which could be reduced to 2.48 degrees C if the TC window was utilized. The uniformity improvement could be more significant for indoor environments with apparent air temperature differences, especially for the air-conditioning case. It is suggested that the indoor air temperature and its uniformity may affect the temperature and uniformity of the TC window surface in turn, specifically its phase transition time.
引用
收藏
页数:13
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