Performance and aviation application of direct ammonia fuel SOFC-GT hybrid system

被引：0
|
作者：
Xu L. [1 ]
Mao J. [1 ]
Liang F. [1 ]
Wang Z. [1 ]
Yang M. [1 ]
机构：
[1] Jiangsu Province Key Laboratory of Aerospace Power System, College of Energy and Power Engineering, Nanjing University of Aeronautics and Astronautics, Nanjing
来源：
Hangkong Dongli Xuebao/Journal of Aerospace Power | 2024年 / 39卷 / 04期
关键词：
aviation power; DA-SOFC; hybrid system; power-mass ratio; solid oxide fuel cells-gas turbine; system efficiency;
D O I：
10.13224/j.cnki.jasp.20220346
中图分类号：
学科分类号：
摘要：
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. © 2024 Beijing University of Aeronautics and Astronautics (BUAA). All rights reserved.
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