SOFC-MGT三种联合循环性能对比分析

SOFC-MGT three cycle system performance analysis

固体氧化物燃料电池与微型燃气轮机(SOFC-MGT)联合发电系统可以有效提高船舶的续航力以及能源的利用率,为了分析该系统在不同循环方式下的性能优劣,运用Matlab/Simulink软件分析了不同燃料流量对新型SOFC-MGT底层循环系统功率、效率等性能的影响,并将新型SOFC-MGT底层循环系统输出功率等性能与传统的SOFC-MGT底层循环系统以及顶层循环系统进行了对比分析。研究结果表明,3种循环方式下,系统的输出最大功率分别为1.33kW,1.29kW和1.48kW,输出效率分别为50.6%,56.3%和65.6%。在输出功率方面,SOFC-MGT顶层循环系统的输出性能要优于2种底层循环,新型SOFC-MGT底层循环系统的输出性能要优于传统的底层循环,在涡轮尾气能量回收方面,新型SOFC-MGT底层循环系统要优于顶层循环和传统的底层循环系统。

The solid oxide fuel cell and micro gas turbine(SOFC-MGT)combined power generation system can effectively improve the endurance and energy efficiency of ships.In order to analyze the performance of the system under different cycle modes,use Matlab/Simulink software analyzes the effects of different fuel flow rates on the power and efficiency of the new SOFC-MGT bottom cycle system,and compares the output power of the new SOFC-MGT bottom cycle system with the traditional SOFC-MGT bottom cycle system and top cycle system A comparative analysis was carried out.The research results showed that the maximum output power of the system was 1.33kW,1.29kW and 1.48kW,and the output efficiency was 50.6%,56.3%,and 65.6%,respectively,under the three circulation modes.In terms of output power,the output performance of the SOFC-MGT top cycle system is better than that of the two bottom cycles,and the output performance of the new SOFC-MGT bottom cycle system is better than that of the traditional bottom cycle.In terms of turbine exhaust energy recovery.The new SOFC-MGT bottom circulation system is superior to the top circulation and the traditional bottom circulation system.