摘要
基于热力学第一定律和质量守恒定律,建立槽式太阳能辅助燃煤发电系统模型。并针对槽式太阳能辅助燃煤机组回热系统最常见的两种集成方式,以槽式太阳能辅助某330 MW亚临界燃煤机组为研究对象,基于典型年气象数据及原燃煤机组年实际负荷,对这两种集成互补方案进行分析比较,并在此基础上,定量分析蓄热对互补发电系统年性能的影响。结果表明：串联集成方式在运行调节及系统控制方面更易实施,但并联集成互补系统具有更好的热经济性;此外,蓄热能大幅减小太阳能间歇性造成的集热子系统输出波动,且对于有条件设置较大集热面积的互补系统,加入蓄热可使其获得更好的经济性。
Based on the first law of thermodynamics and the law of conservation of mass, the trough solar assisted coalfired power generation system model was established. In view of the two most common integration methods of trough solar assisted coal-fired unit heat recovery systems, taking trough solar assisted 330 MW sub-critical coal-fired unit as the research object, two integrated complementary schemes were analyzed and compared based on typical annual meteorological data and the actual annual load of coal-fired power unit, and on this basis, the effect of heat storage on the annual performance of the complementary power generation system was quantitatively analyzed. The results show that the series integration mode is more convenient for operation adjustment and system control, but the parallel integration complementary system has better thermal economy. In addition, the heat storage energy can greatly reduce the output fluctuations of the collector subsystem caused by the intermittent solar energy, and for the complementary system where the larger collection area is conditionally set, the addition of heat storage can make it more economical.
作者
侯宏娟
梁明宇
黄畅
Hou Hongjuan;Liang Mingyu;HuangChang(National Thermal Power Engineering ＆ Technology Research Center, North China Electric Power University, Beijing 102206, China)
出处
《太阳能学报》
EI
CAS
CSCD
北大核心
2018年第4期925-932,共8页
Acta Energiae Solaris Sinica
基金
国家重点基础研究发展(973)计划(2015CB251505)
中央高校基本科研业务费专项资金(2016XS26)
关键词
太阳能
燃煤电站
系统集成
蓄热
年性能
solar energy
coal-fired power plants
system integration
thermal storage
annual performance
