窗墙比对华北农村住宅能耗影响规律研究

通过DeST模拟的方法,结合华北地区农村住宅的特点,分别计算了不同类型住宅空调能耗指标、供暖能耗指标以及全年空调、供暖的总能耗指标。并研究了在不同外窗材质、是否遮阳、窗墙比对供暖能耗、空调能耗以及全年供暖、空调总能耗的影响规律。结果表明:在东向、西向、北向随着窗墙比的增大,全年总能耗指标呈增长趋势,应尽量降低其窗墙比;在南向,随着窗墙比的增大,全年总能耗指标呈先降低后增长趋势;采用外窗遮阳及传热性能良好的外窗既可以降低全年的能耗指标,也可以降低窗墙比对全年能耗的影响,在外窗保温性能良好、增设外窗遮阳的条件下可以适当增大南向窗墙比。

The research about energy consumption of rural residential building influenced by the window-wall ratio in North China

Combined with the characteristic of rural residential building in north China, the energy consumption of a typical design of a building was simulated by the software DeST to gain different types of building's annual energy consumption of air conditioning, annual heating energy consumption and the annual total energy consumption of air conditioning and heating. Then, this paper research the changing regulation of them under the influence of window-wall ratio with different orientations, different material the window, whether shading. The results show that the total energy consumption index showed a trend of growth with increase of window-wall ratio in east, west, north. and could try to reduce window-wall ratio; The total energy consumption index is on the decline with increase of window-wall ratio in south; shading on outside the window and using the window which heat transfer performance is good can reduce influence of the window-wall ratio on the whole year energy consumption. so can appropriately increase the window -wall ratio on south of building.