太阳能辅助燃煤发电系统的储热量优化研究  

The Optimization Study on Heat Storage Capacity of Solar Assisted Coal-Fired Power Generation System

作　　者：宋立信 田存仁 郭凌云 马超 Song Lixin;Tian Cunren;Guo Lingyun;Ma Chao(Guangdong Datang International Chaozhou Power Generation Co.,Ltd.,Guangdong,Chaozhou,515723,China)

机构地区：[1]广东大唐国际潮州发电有限责任公司,广东潮州515723

出　　处：《仪器仪表用户》2019年第1期101-104,共4页Instrumentation

摘　　要：用太阳能辅助燃煤发电并预热燃煤电厂给水是一种高效、经济的太阳能热利用方式。本文以太阳能辅助燃煤发电系统为研究对象,通过对系统的主要子系统进行模型仿真,证明通过设置储热系统可以提升互补发电系统的年太阳能光电转化效率稳定性。配置0.5h蓄热量时,互补发电系统的经济性最优,所对应的标准化发电成本和集热面积分别为:0.0629$/kWh和1.413×105m2(100%负荷)、0.0654$/kWh和9.42×104m2(75%负荷)以及0.0730$/kWh和5.89×104m2(50%负荷)。Using the solar assisted coal-fired power generation and preheating feed water was a high efficient and economic way of solar energy heat utilization.By taking the solar assisted coal-fired power generation system as the research object,the main subsystem model of the solar assisted coal-fired power generation system was set up,and the result showed that configuring heat storage system could improve the annual photoelectric conversion efficiency stability of complementary power generation system.When heat storage is 0.5h,the economy of complementary power generation system is best.And the standardized generation cost and collector area are 0.0629$/kWh and1.413×105m^2(100%load),0.0654$/kWh and9.42×104m^2(75%load),0.0730$/kWh and5.89×104m^2(50%load).

关 键 词：太阳能辅助燃煤发电系统 优化 储热系统 光电转化效率 标准化发电成本 

分 类 号：TK519[动力工程及工程热物理—热能工程]