Multi-objective optimization of hybridized turbofan engines using eco-friendly fuels

IF 7.5 1区工程技术 Q2 ENERGY & FUELS Fuel Pub Date : 2025-03-27 DOI:10.1016/j.fuel.2025.135186

Shaimaa Seyam, Ibrahim Dincer, Martin Agelin-Chaab

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Abstract

Aviation has been a critical transportation mode that saves time, connects continents, and transports goods and passengers. However, the aviation industry must improve engine performance by reducing emissions and increasing power output with higher performance without relying on traditional fuels. This paper presents a comparison between a traditional turbofan and two hybridized turbofans combined with molten carbonate fuel cells (MCFC) and solid oxide fuel cells (SOFC) separately. Also, the study selected one hybridized engine, which is a SOFC-turbofan, according to its weight and performance to conduct an optimization study to further enhance its performance. The optimization algorithm chosen is the multi-objective particle swarm optimization (MOPSO) and is applied for thermodynamic, exergoeconomic, and exergoenvironmental analyses on the selected engine. The power of the optimized SOFC-turbofan has increased from 8.65 MW to 10.21 MW and improved its performance to 57 % energetic efficiency and 68% exergetic efficiency. The optimized SOFC-turbofan has a lower relative cost difference of 27% and a lower relative environmental impact difference of 18% than the unoptimized SOFC-turbofan. It proves that the optimized SOFC-turbofan is the most economical and eco-friendly engine by tuning parameters such as compression and expansion pressure ratios.

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使用环保燃料的混合动力涡扇发动机的多目标优化

航空一直是一种重要的运输方式，可以节省时间，连接大陆，运输货物和乘客。然而，航空业必须在不依赖传统燃料的情况下，通过减少排放和提高功率输出来提高发动机的性能。本文对传统涡扇发动机与分别采用熔融碳酸盐燃料电池（MCFC）和固体氧化物燃料电池（SOFC）的混合涡扇发动机进行了比较。同时，根据混合动力发动机的重量和性能，选择了一台sofc涡扇发动机进行优化研究，进一步提升其性能。所选择的优化算法为多目标粒子群优化算法（MOPSO），并对所选发动机进行了热力学、燃烧经济性和燃烧环境分析。优化后的sofc涡扇发动机的功率从8.65兆瓦增加到10.21兆瓦，并将其性能提高到57%的能量效率和68%的火用效率。与未优化的sofc涡扇相比，优化后的sofc涡扇相对成本差降低了27%，相对环境影响差降低了18%。通过调整压缩和膨胀压力比等参数，证明了优化后的sofc涡扇发动机是最经济、最环保的发动机。

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来源期刊

Fuel 工程技术-工程：化工

CiteScore

12.80

自引率

20.30%

发文量

3506

审稿时长

64 days

期刊介绍： The exploration of energy sources remains a critical matter of study. For the past nine decades, fuel has consistently held the forefront in primary research efforts within the field of energy science. This area of investigation encompasses a wide range of subjects, with a particular emphasis on emerging concerns like environmental factors and pollution.