银川地区太阳能地板辐射供暖性能测试分析
Performance test and analysis of solar floor radiation heating in Yinchuan region
摘要：
针对银川地区冬季常规供暖方式造成的能源消耗量大和环境污染问题，设计搭建了太阳能低温地板辐射供暖系统。通过测试供暖期实验日室内外空气温度、太阳辐射照度、集热介质进出口温度等参数，分析了太阳能供热量、集热器集热效率、供暖节能率，探讨了太阳能地板辐射供暖在银川地区应用的可行性。测试数据表明：太阳能地板辐射供暖全天可维持室内平均温度高于室外平均温度12 ℃；集热系统运行时间为10:30—16:30，太阳能集热效率可达60%以上；日太阳辐射得热量为65 MJ，占总供暖热量的70%以上。
Abstract：
Regarding to the problems of large energy consumption and environmental pollution caused by the conventional heating methods in Yinchuan region in winter, designs a solar low-temperature radiant floor heating system. By testing the experimental parameters including indoor and outdoor air temperature, solar irradiance, inlet and outlet temperature of heat collect medium during the heating period, analyses the solar energy heating load, collection efficiency, and energy saving rate. Discusses the application feasibility of solar floor radiation heating in Yinchuan. The test results show that the average indoor air temperature can be maintained higher than the average outdoor temperature by 12 ℃ during a whole day with solar low-temperature radiant floor heating. The suitable running time of the solar energy collecting system is 10:30-16:30, and the solar thermal efficiency can reach above 60%. The daily solar radiation heat gain is 65 MJ, which accounts for rnore than 70% of total heating loads.
Keywords:Yinchuan, solar energy, floor radiation heating, heating performance, energy saving rate, heat collection efficiency