摘要
塔式太阳能热发电系统中,由于镜场辐射投射到吸热器受热面上同一目标点(即单点聚焦),造成受热面局部区域高度集中,呈现出时间和空间分布的不均匀现象,导致系统工质流量分配及水循环安全特性恶化。为此,在前面研究的基础上,研究了多点聚焦方式下,腔式吸热器热负荷分布和受热管组内工质流量分配、热偏差及流动特性,为塔式太阳能腔式吸热器安全运行及其水动力特性优化控制提供参考。
For the characteristics of one-target focus type of the heliostats in the tower solar power system,the distribution of the heat flux of the solar cavity receiver is non-uniform and concentrated on the certain heat panels of the cavity receiver,which causes the deterioration of the flow rate distribution,thermal deviation and the flow reliability,and also affects the stability and security of the whole system.Thus,based on the study under one-target focus type of the heliostats,the flow rate distribution,thermal deviation and the flow reliability under the multi-target focus type of the heliostats field is developed to provide general guidance for the security operating and the optimal control strategy of the hydrodynamic characteristics of the solar power tower system.
出处
《工程热物理学报》
EI
CAS
CSCD
北大核心
2015年第1期106-110,共5页
Journal of Engineering Thermophysics
基金
国家自然科学基金面上项目(No.51276144)
国家973计划课题(No.2010CB227102)
关键词
多点聚焦
腔式吸热器
热负荷
水动力特性
multi-target focus
cavity receiver
heat panel
hydrodynamic characteristics
