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直接氨SOFC-GT混合动力系统性能及航空应用

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建立了基于直接氨燃料的固体氧化物燃料电池-燃气轮机(SOFC-GT)混合动力系统仿真模型,开发了一种架构优化的高功率-质量比的高效发电系统,并研究了燃料利用率和系统燃料分配对系统功率分配、各子部件质量以及其㶲损失等性能的影响.基于所建立的模型分析了压气机压比、燃料摩尔流量、空气摩尔流量等输入参数对系统性能的影响,在最优性能条件下对系统进行功率-质量比分析.仿真结果表明该系统的净发电效率为56.85％,㶲效率为50.71％,净发电量为213 kW,功率-质量比为0.7303 kW/kg,达到美国能源部太平洋西北国家实验室(PNNL)为SOFC-GT混合动力系统应用于航空航天领域制定的标准.在此基础上,讨论了该系统在商用飞机主动力和辅助动力上的应用,表明SOFC-GT混合动力系统在航空领域具有良好的应用前景.
Performance and aviation application of direct ammonia fuel SOFC-GT hybrid system
A simulation model of the solid oxide fuel cells-gas turbine(SOFC-GT)hybrid power system on the basis of direct ammonia fuel was established,to developed an efficient power generation system with a high power-mass ratio optimized by architecture,and studied the effects of fuel utilization and system fuel allocation on system power allocation,mass of various subcomponents,and energy losses.Then,the performance of the established SOFC-GT hybrid system was evaluated by changing parameters such as the compressor pressure ratio,fuel flow rate and air flow rate.The power-mass ratio analysis of the system was also carried out under the optimal performance condition.The simulation results showed that,the net power generation efficiency of the system can reach 56.85％,and the exergy efficiency can reach 50.71％at the design conditions.Meanwhile,the net power generation and the power-mass ratio reached 213 kW and 0.730 3 kW/kg,respectively.So,this result can meet the power-mass ratio standard given by the Pacific Northwest National Laboratory(PNNL)for the SOFC-GT hybrid system used in the aerospace field.Finally,the application of the system on commercial aircraft as both main power system and auxiliary power unit was discussed,and the designed SOFC-GT hybrid system showed good aviation application prospects.

DA-SOFCsolid oxide fuel cells-gas turbinehybrid systemsystem efficiencypower-mass ratioaviation power

徐乐根、毛军逵、梁凤丽、王在兴、杨孟林

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南京航空航天大学能源与动力学院江苏省航空动力系统重点实验室,南京 210016

氨燃料电池 固体氧化物燃料电池-燃气轮机 混合动力系统 系统效率 功率-质量比 航空动力

173计划领域基金重点项目先进航空动力创新工作站项目中国航空发动机集团产学研合作项目

2021-JCJQ-JJ-0339HKCX2022-01-002HFZL2022CXY032

2024

10.13224/j.cnki.jasp.20220346

航空动力学报
中国航空学会

航空动力学报

CSTPCD北大核心
影响因子：0.59
ISSN：1000-8055
年,卷(期)：2024.39(4)
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