论文部分内容阅读
为减少被动式超低能耗建筑的新风负荷对常规能源的消耗,同时,保持室内良好的空气品质,提出了一种太阳能集热系统与带热回收的新风系统相结合的方案。以西宁市为例,分析计算了该太阳能新风系统在不同集热器安装倾角、不同太阳能保证率下的集热器采光面积。结果表明在太阳能集热器的安装倾角为90°、对新风负荷的太阳能保证率为80%时每户住宅所需的集热器采光面积为4.7 m2,同时系统一年可节约能耗4 022.13 MJ,换算成电量约1 117.26 k W·h,表明该太阳能新风系统在被动式超低能耗建筑中的应用是经济可行的。
In order to reduce the consumption of conventional energy by the fresh air load of passive ultra-low energy buildings and to maintain good indoor air quality, a solar energy heat-collection system combined with a fresh air system with heat recovery is proposed. Taking Xining City as an example, the area of collector lighting under different solar collector installation angles and different solar energy guaranteed rates was analyzed and calculated. The results show that when the installation angle of solar collectors is 90 ° and the solar energy guarantee rate of fresh air load is 80%, the collector lighting area required by each house is 4.7 m2, and the system can save 4 022.13 energy consumption per year MJ, converted into electricity about 1 117.26kW · h, indicating that the solar air system in the passive ultra-low energy consumption of buildings is economically feasible.