基于分析的CO_2零排放SOFC复合动力系统研究  

Exergy Analysis of Zero CO_2 Emission SOFC Hybrid Power System

作　　者：段立强[1] 张潇元[1] 杨勇平[1] 徐钢[1] 

机构地区：[1]华北电力大学能源动力与机械工程学院能源的安全与清洁利用北京市重点实验室电站设备状态监测与控制教育部重点实验室,北京102206

出　　处：《工程热物理学报》2011年第5期745-749,共5页Journal of Engineering Thermophysics

基　　金：国家自然科学基金项目(No.50606010);国家重点基础研究发展计划项目(No.2009CB219801);长江学者和创新团队发展计划资助项目(No.IRT0720);中央高校基本科研业务费专项资金项目(No.10ZG03)

摘　　要：本文建立了SOFC复合动力系统模型,提出了两种CO_2零排放的SOFC复合动力系统,并对这两种系统的性能进行了详细的比较和分析。与常规的进行脱除CO_2电厂相比,极大地降低了回收CO_2的能耗。基于分析理论,详细比较了系统各单元损系数,找出损的最大部位并提出解决措施。通过优化分析,得到运行参数的最佳值。本文研究成果将为进一步研究高效的CO_2零排放SOFC复合动力系统提供有益的参考。Based on a traditional SOFC（Solid Oxide Fuel Cell） hybrid power system,zero CO_2 emission SOFC hybrid power systems are proposed in this paper,and the comparison results of the all systems are revealed in detail.Compared with the conventional power plants with CO_2 capture, the new systems greatly reduce the energy consumption for CO_2 capture.Based on exergy analysis method,the exergy loss distribution for every unit of system is revealed and compared.The largest exergy destruction part is pointed out and some feasible ways to further lowering the exergy loss are provided.In addition,some key operation parameters are optimized.The research achievements from this paper will provide the valuable reference for further study on of zero CO_2 emissions SOFC hybrid power systems with higher efficiency.

关 键 词：固体氧化物燃料电池 复合发电系统 CO_2零排放 分析 

分 类 号：TK123[动力工程及工程热物理—工程热物理]