Energy Performance of Window System in Residential Buildings

摘要：

Heat gain through the external window accounts for 25-28% of the total heat gain,and it is up to 40 % adding in the infiltration in hot summer and cold winter zone of China,so it is important to carry out the sustainable window system design with low energy consumption.The effects of window system including area ratio of window to wall and categories of glazing on energy consumption of air conditioner (AC) are simulated by using eQUEST software.Results show that the west and east windows have more obvious effects on decreasing the AC annual electric consumption.It is also shown that the low-e glazing (both single glazing and double glazing) has obvious effect on the energy conservation of heating electric consumption and reflective glazing has the better effect on the reduction of cooling electric consumption.The limit values of glazing heat-transfer coefficient with different glazing shading coefficients and area ratios of window to wall in hot summer and cold winter zone in China are suggested to carry out the 50% of energy saving compared with the original building basecase.All the results can be the reference of revising ＜design standard for energy efficiency of residential buildings in hot summer and cold winter zone＞ (JGJ134-2001) and window designing for residential buildings.

关键词： Energy performance Window system Area ratio of window to wall Heat-transfer coefficient Shading coefficient

作者: Jinghua Yu Changzhi Yang Liwei Tian Dan Liao

作者单位: College of Civil Engineering,Hunan University,Changsha,China College of Civil Engineering,Hunan University,Changsha,China

会议类型: 国际会议

会议名称: The First International Conference on Building Energy and Environment(第一届建筑能源与环境国际会议)

会议地点: 大连

会议语种:英文

页码: 200-207

在线出版日期: 2008-07-01（万方平台首次上网日期，不代表论文的发表时间）