摘要
基于平板型集热器日均能量输出模型,建立了太阳能热水系统水箱水量与集热器面积的配比模型.以云南省10个城市的典型气象数据为例,利用所建模型对太阳能热水系统的水量配比进行了计算.为便于实际应用,给出了水箱终温为60℃时各城市各季节和全年使用太阳能热水系统水量配比与倾角间相关系数大于0.999的数学关系式.进一步研究发现,这10个城市春季、夏季、秋季、冬季和全年使用太阳能热水系统集热器的最佳倾角及其对应的水量配比分别在5~15°,0~0°,29~38°,43~50°,20~30°和50~62,44~60,43~56,44~58,46~56kg/m2之间.依据供热目的的不同,可利用该研究结果对太阳能热水系统进行优化设计.
The model for discussing the tank-volume-to-collector-area ratio（the ratio is abbreviated as MAR）for south-facing flat-plate solar water heating system was established based on the energy output model of the flat-plate solar collector.The MARs were calculated by using the typical meteorological data of ten cities in Yunnan Province.The final water temperature in the storage tank is 60℃in the calculation process.To facilitate engineering applications,the quadratic fit relations between the MARs and the tilt angles of the solar collector have been obtained with high correlation coefficients（R20.999）.Further discussions found that the optimal tilt angles and the corresponding MARs for spring,summer,autumn,winter and year-round operation of the solar water heating system are respectively in 5~15°,0~0°,29~38°,43~50°,20~30°,50~62kg/m2,44~60kg/m2,43~56kg/m2,44~58kg/m2 and 46~56kg/m2.Depending on the purpose and requirement of heating,the seasonal or year-round solar hot water systems can be optimized and designed by using the key results from this paper.
出处
《西南大学学报（自然科学版）》
CAS
CSCD
北大核心
2016年第7期185-190,共6页
Journal of Southwest University(Natural Science Edition)
基金
NSFC-云南联合基金重点项目(U1137605)
云南省科技厅面上项目(2013FZ111)
关键词
太阳能热水系统
水量配比
平板型集热器
最佳倾角
solar water heating system
mass area ratio（MAR）
flat-plate solar collector
optimal tilt angle
