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合理的建筑挑檐构型是暖通空调领域节能的一个途径。本文首先从建筑节能的角度出发,以太阳能建筑为研究对象,以夏季与冬季遮阳量之差E达到最大为目标,并兼顾建筑要求,对挑檐构型进行优化;而后利用Matlab程序的图形用户界面技术编制人机交互界面,实现了对全国270个台站最佳挑檐宽度范围的可视化计算。研究结果表明,存在最佳的挑檐距窗户上沿距离d和挑檐宽度W使E最大;对于单层住宅建筑,当窗户高度Hw处于1.5～2.4m之间时,E的最大值随Hw的增大而增大,但同时会带来建筑造价和围护结构热损失增大的问题,应进行综合分析;北方地区挑檐的节能优势明显高于南方地区,应加大其节能优化的力度。
Reasonable building cornice configuration is a way of energy saving in HVAC field. This paper first from the perspective of building energy efficiency, solar energy buildings for the study to summer and winter sunshine amount to achieve the maximum difference between E as the goal, taking into account the construction requirements of cornices eaves configuration optimization; and then use the Matlab program of graphical users Interface technology The preparation of human-computer interaction interface, to achieve the best of 270 stations across the country wide visual range of visual computing. The results show that there is the best pick eaves away from the window along the distance d and eaves width W to E maximum; for single-storey residential buildings, when the window height Hw is between 1.5 ~ 2.4m, the maximum E with Hw But will also bring about the increase of construction cost and the heat loss of the envelope structure, and should be analyzed comprehensively. The energy-saving advantage of the northern eaves is obviously higher than that in the south, and the energy-saving optimized Strength.