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本文针对夏热冬冷地区的气候特点,以南京地区某一南墙窗为模型,分别选取PVC塑料普通中空窗和Low-E中空玻璃窗,利用MATLAB编程研究分析当这两种窗无外遮阳时和普通中空窗采用不同外遮阳方式时的外窗传热性能。结果表明:普通中空窗无外遮阳、水平固定外遮阳、卷帘活动外遮阳和Low-E中空窗无外遮阳这四种情况下,外窗的全年累计耗电量分别约为104.89kW.h、110.93 kW.h、73.38 kW.h和111.06 kW.h。普通中空窗水平固定外遮阳和Low-E中空玻璃窗无外遮阳时耗电量较大,都比普通中空窗无外遮阳时大了约5.8%;普通中空窗卷帘活动外遮阳时其耗电量比其无遮阳时减少了30.04%,比其他两种方式时减少了约34%。
In this paper, aiming at the climatic characteristics of hot summer and cold winter area, taking a certain southern wall window in Nanjing as the model, PVC plastic common hollow window and Low-E hollow glass window were selected respectively. Using MATLAB programming, When the window and the ordinary use of different external sun shade outside the window when the heat transfer performance. The results show that the total annual power consumption of the external windows is about 104.89kW under the four conditions of no external sun-shading, horizontal fixed external sun-shading, blind shading and Low-E hollow window. h, 110.93 kW.h, 73.38 kW.h and 111.06 kW.h. Ordinary hollow window horizontal fixed outer shade and Low-E hollow glass window without external shade when the power consumption is larger than the normal hollow window when no shade big about 5.8%; ordinary hollow window roller shade activities when the shade Electricity was 30.04% less than when it was unaspirated and about 34% lower than the other two.