摘要
针对一种燃气辅助太阳能组合系统,测试并分析了太阳辐照强度对系统能效比及太阳能保证率的影响。试验表明:在阴天测试工况下太阳能保证率为0,系统能效比在间歇运行时达0.88,连续运行时达0.87;在晴天测试工况下,太阳能保证率达0.2以上时,系统能效比可升高至1.23;太阳能保证率达0.3以上时,系统能效比可升高至1.55;太阳能保证率达0.45以上时,系统能效比可升高至2.07。日平均太阳辐照强度低于200 W/m2时,集热系统开启会大幅降低系统能效比。
A gas-assisted solar energy combination system was introduced.The influence of solar radiation intensity on the system energy efficiency ratio and solar energy guarantee rate was tested and analyzed.The experimental results show that the solar energy guarantee rate was 0 under overcast condition and the energy efficiency ratio of the system was 0.88 in intermittent operation mode and 0.87 in continuous operation mode.Under the condition of sunny day,the energy efficiency ratio of the system could be increased to 1.23 when the solar guarantee rate was above 0.2.The energy efficiency ratio of the system could be increased to 1.55 when the solar guarantee rate was above 0.3.The energy efficiency ratio of the system could be increased to 2.07 when the solar guarantee rate was above 0.45.When the daily average radiation intensity of solar energy was lower than 200 W/m2,the energy efficiency ratio of the system would be greatly reduced when the collector system was turned on.
作者
刘凯
蔡颖玲
Liu Kai;Cai Yingling(School of Mechanical Engineering,Shanghai University of Engineering Science,Shanghai 201620,China)
出处
《流体机械》
CSCD
北大核心
2020年第2期69-73,共5页
Fluid Machinery
关键词
组合系统
太阳能保证率
EER
combination system
solar energy guarantee rate
EER
