摘要
集热器面积与倾角是太阳能热水工程设计中的重要参数。综合考虑气候、用水方式、太阳辐射和热水负荷的季节性等因素,建立完整的组合优化计算模型,在合理年太阳能保证率的前提下确定集热器面积,以年辅热量最小的原则确定与集热器面积相配的倾角,并以3个城市为例进行计算。结果表明,当太阳辐射与热水负荷变化趋势相反,最佳倾角随集热器面积增加而增大;当太阳辐射与热水负荷变化趋势相同,最佳倾角随集热器面积增加基本不变。
Collector area and angle are important parameters in the design of solar hot water engineering. Comprehensively considering the climate, water supply, and seasonal factors of solar irradiation and heating load, the integrated combinatorial optimization calculation model was established, it could be used to determine the collector area under the premise of reasonable solar fraction, to determine the optimum angle matching with the collector area under the principle of minimizing the year＇ s auxiliary heat consumption, calculations were conducted to three typical cities. The results indicated that when the change of solar irradiation and heating load displays opposite tendency, the best angle increases with the increasing of collector area. When the change of the two factors displays same tendency, the best angle almost remains unchanged with the increase of collector area.
出处
《太阳能学报》
EI
CAS
CSCD
北大核心
2015年第11期2651-2658,共8页
Acta Energiae Solaris Sinica
基金
建筑环境与能源高效利用四川省青年科技创新研究团队项目(2015TD0015)
中央高校基本科研业务费专项资金(2682015CX038)
四川省住房和城乡规划建设项目(2013K05)
四川省住房和城乡建设厅科研课题(2014K07)
关键词
太阳能热水系统
集热器面积与倾角
太阳辐射与热水负荷季节性
组合优化
年辅热量
solar hot water system
collector area and angle
seasonality of the solar radiation and heating load
combinatorial optimization
year＇ s auxiliary heat consumption
