底层与顶层MCFC-MGT联合循环系统性能分析

Performance Analysis of Hybrid Cycles with Bottoming and with Topping MCFC-MGT

在IPSEpro仿真环境下建立了熔融碳酸盐燃料电池/微型燃气轮机联合循环系统顶层循环和底层循环仿真模型。利用该模型对两种不同型式的联合循环系统在额定工况和变工况下的稳态性能进行了研究,并对两种联合循环系统的主要性能参数进行了对比分析。结果表明:熔融碳酸盐燃料电池/微型燃气轮机顶层联合循环系统具有较高的发电效率,而底层循环具有良好的变负荷特性。

A simulation model under IPSEpro simulation conditions has been built for hybrid cycles, with micro gas turbines and molten carbonate fuel cells, in bottoming as well as in topping arrangement. The steady state performance of these two different types of hybrid cycles, under rated, as well as off-design conditions, have been studied with the help of this model and their characteristic parameters analyzed by comparison. Study results indicate that hybrid cycles with micro gas turbine-molten carbonate fuel cells have a higher power generating efficiency in the topping arrangement, while the bottoming arrangement exhibits good off-design behavior.