Windows Dimension Optimization for Better Thermal Comfort in Summer Based on Analytical Models
This paper intends to find a way to calculate appropriate width and height for rectangle window. This paper focuses on air velocity for better thermal comfort. In summer, higher air velocity results in higher thermal comfort, higher temperature tolerance and lower air-conditioner usage. Most previous researches concentrated on day lighting and air exchange rate rather than thermal comfort. Firstly, this paper gives the results of natural ventilation thermal comfort investigation and points out that higher air velocity brings on higher residents comfort in summer. Secondly, the paper analyzed the velocity and ventilation volume of single-sided rectangular window. The paper put forward the optimization design methods for single-sided model, which could be used to improve thermal comfort. It has been found out that under given thermal strength, the velocity will not increase infinitely. Moreover, theres a maximum air velocity for single-sided ventilation. The same phenomenon exists in the model of one zone with two openings. These phenomena suggest that simply vertical distance increment has limited contribution to air velocity. By using the methods in this paper, architects are able to calculate reasonable dimension of windows with cold load and heat transfer coefficient of building envelope.
Natural ventilation Thermal comfort Boyancy force Architecture windows optimum design Single-sided large opening
Wei Yin Guoqiang Zhang Wei Yang Wang Xiao
Key Lab of Building Safety and Energy Efficiency,MOE,China College of Civil Engineering,Hunan Univer Mathematics School University of Texas at Arlington,USA
国际会议
The 6th International Symposium on Heating,Ventilating and Air Conditioning(第六届国际暖通空调学术会议)
南京
英文
1058-1064
2009-11-06（万方平台首次上网日期，不代表论文的发表时间）