应用方法分析PFBC-CC系统的环境影响  

An Analysis of the Environmental Impact of a PFBC-CC (Pressurized Fluidized Bed Combustion Combined Cycle) System by Using an Exergy Method

作　　者：郑莆燕[1] 蔡宁生[2] 肖军[1] 裘放放 

机构地区：[1]东南大学洁净煤发电及燃烧技术教育部重点实验室,江苏南京210096 [2]清华大学热能系,北京100084

出　　处：《热能动力工程》2003年第1期74-77,共4页Journal of Engineering for Thermal Energy and Power

基　　金：国家重点基础研究发展规划基金资助项目 (G19990 2 2 10 5 33)

摘　　要：采用火用方法建立了系统排放的废弃物和废热分析模型 ,从火用的概念出发分析排放物对环境的影响 ,并对一个增压流化床联合循环 (PFBC -CC)发电系统的环境影响进行分析。结果表明 ,系统排放的CO2 和热量对环境的影响是不可忽视的 ,S元素从SO2 转移到CaSO4 可大大降低系统的环境影响。为了用火用方法建立更全面的环境影响分析 ,还需要对参考环境模型进行更深入的研究。By using an exergy method a model for the thermal analysis of system emissions and waste heat was set up. Starting from the concept of exergy the environmental impact of emissions is analyzed in general. Furthermore, the impact on environment of a PFBC-CC (pressurized fluidized bed combustion combined cycle) power generation system has also been analyzed. The results of the analysis indicate that the environmental impact of CO 2 emissions and waste heat of the system should not be ignored. The transfer of element S from SO 2 into CaSO 4 can drastically reduce the environmental impact of the system. To achieve a more comprehensive analysis of the environmental impact with the help of the exergy method, it is necessary to conduct a more thoroughgoing research on a reference environment model.

关 键 词：yong方法 PFBC-CC系统 环境 排放物 增压流化床联合循环 发电系统 硫酸钙 

分 类 号：X773[环境科学与工程—环境工程]