PG6541B燃气轮机燃用煤基合成气的性能及分析  

Performance Calculation and Analysis of PG6541B Gas Turbine Combined Cycle When Firing Coal-based Synthesis Gas

作　　者：张学镭[1] 朱娜[2] 

机构地区：[1]华北电力大学动力工程系,保定071003 [2]山东省科学院能源研究所,济南250014

出　　处：《汽轮机技术》2010年第5期356-358,362,共4页Turbine Technology

基　　金：华北电力大学博士学位教师基金(No.93102802);中央高校基本科研业务费专项资金(No.09MG34)资助

摘　　要：以PG6541B燃气轮机为例，建立了燃气-蒸汽联合循环关键部件的数学模型，预测了燃用煤基合成气时联合循环的性能。结果表明，燃用煤基合成气时，提高压气机的压比使得联合循环的净功率和热效率最高，降低燃气轮机进口燃气温度使得联合循环的净功率和热效率最低。变工况性能分析表明，燃用煤基合成气的联合循环热效率比燃烧天然气时下降了2—3个百分点。Take PG6541 B gas turbine as example, the mathematic model of the key equipments of gas turbine combined cycle was built in the paper, and the performance of combined cycle when firing coal-based synthesis gas was forecasted. The results show that increasing compressor ratio when firing coal-based synthesis gas can make net power and thermal efficiency highest, and decreasing gas turbine inlet temperature can make net power and thermal efficiency lowest. The off-design performance calculation show the thermal efficiency of firing coal-based synthesis gas is decreased by 2 - 3 percent point than that of firing natural gas.

关 键 词：燃气-蒸汽联合循环 煤基合成气 性能 变工况 

分 类 号：TK474[动力工程及工程热物理—动力机械及工程]