Multi-objective synergistic optimization of closed Brayton cycle superstructure for thermal protection system of high-Mach-number air-breathing vehicles
The power generation and cooling Brayton cycle system promises to resolve the thermal protection and electricity demand of high-Mach-number air-breathing vehicle engines. A new design challenge arises from the trade-off between the cooling capability and thermodynamic performance of the Brayton cycl...
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| Format: | Article |
| Language: | English |
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Elsevier
2025-09-01
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| Series: | Case Studies in Thermal Engineering |
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| Online Access: | http://www.sciencedirect.com/science/article/pii/S2214157X25008160 |
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| author | Chendi Yang Hang Pu Lin Mu Lin Zhou Junjiang Bao Yining Zhang Ming Dong |
| author_facet | Chendi Yang Hang Pu Lin Mu Lin Zhou Junjiang Bao Yining Zhang Ming Dong |
| author_sort | Chendi Yang |
| collection | DOAJ |
| description | The power generation and cooling Brayton cycle system promises to resolve the thermal protection and electricity demand of high-Mach-number air-breathing vehicle engines. A new design challenge arises from the trade-off between the cooling capability and thermodynamic performance of the Brayton cycle system under a finite cold source constraint. In this study, a multi-objective synergistic optimization of Brayton cycle configurations, working fluids, and design parameters was investigated using the superstructure method. The hydrocarbon fuel consumption and the thermal efficiency were adopted as the evaluation indexes. The distribution patterns of eight cycle configurations and nine working fluids on the Pareto-front were analyzed under different design parameters. Results show that with the increasing hydrocarbon fuel consumption and thermal efficiency, the main configuration on the Pareto-front transitions from a single regeneration and reheating cycle to a dual regeneration and reheating cycle, and the working fluid transitions from N2O and CO2 to C2H6. The fuel consumption of the trade-off solutions decreases by 19.24 %–39.56 %, and the thermal efficiency increases by 19.98 %–56.89 % when the turbine inlet temperature increases from 400 to 600 °C. The dual regeneration and reheating Brayton cycle with N2O as the working fluid can trade-off between the cooling capability and thermodynamic performance. |
| format | Article |
| id | doaj-art-87b976cdb1f54089bc92bf98c7b2a135 |
| institution | DOAJ |
| issn | 2214-157X |
| language | English |
| publishDate | 2025-09-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Case Studies in Thermal Engineering |
| spelling | doaj-art-87b976cdb1f54089bc92bf98c7b2a1352025-08-20T02:44:50ZengElsevierCase Studies in Thermal Engineering2214-157X2025-09-017310655610.1016/j.csite.2025.106556Multi-objective synergistic optimization of closed Brayton cycle superstructure for thermal protection system of high-Mach-number air-breathing vehiclesChendi Yang0Hang Pu1Lin Mu2Lin Zhou3Junjiang Bao4Yining Zhang5Ming Dong6Key Laboratory of Ocean Energy Utilization and Energy Conservation of Ministry of Education, School of Energy and Power Engineering, Dalian University of Technology, Dalian, 116024, ChinaKey Laboratory of Ocean Energy Utilization and Energy Conservation of Ministry of Education, School of Energy and Power Engineering, Dalian University of Technology, Dalian, 116024, ChinaKey Laboratory of Ocean Energy Utilization and Energy Conservation of Ministry of Education, School of Energy and Power Engineering, Dalian University of Technology, Dalian, 116024, ChinaBeijing Power Machinery Institute, Beijing, 100074, ChinaState Key Laboratory of Fine Chemicals, School of Chemical Engineering, Dalian University of Technology, Panjin, 124221, ChinaBeijing Power Machinery Institute, Beijing, 100074, ChinaKey Laboratory of Ocean Energy Utilization and Energy Conservation of Ministry of Education, School of Energy and Power Engineering, Dalian University of Technology, Dalian, 116024, China; Corresponding author.The power generation and cooling Brayton cycle system promises to resolve the thermal protection and electricity demand of high-Mach-number air-breathing vehicle engines. A new design challenge arises from the trade-off between the cooling capability and thermodynamic performance of the Brayton cycle system under a finite cold source constraint. In this study, a multi-objective synergistic optimization of Brayton cycle configurations, working fluids, and design parameters was investigated using the superstructure method. The hydrocarbon fuel consumption and the thermal efficiency were adopted as the evaluation indexes. The distribution patterns of eight cycle configurations and nine working fluids on the Pareto-front were analyzed under different design parameters. Results show that with the increasing hydrocarbon fuel consumption and thermal efficiency, the main configuration on the Pareto-front transitions from a single regeneration and reheating cycle to a dual regeneration and reheating cycle, and the working fluid transitions from N2O and CO2 to C2H6. The fuel consumption of the trade-off solutions decreases by 19.24 %–39.56 %, and the thermal efficiency increases by 19.98 %–56.89 % when the turbine inlet temperature increases from 400 to 600 °C. The dual regeneration and reheating Brayton cycle with N2O as the working fluid can trade-off between the cooling capability and thermodynamic performance.http://www.sciencedirect.com/science/article/pii/S2214157X25008160Air-breathing vehiclesClosed Brayton cycleSuperstructureWorking fluidMulti-objective synergistic optimization |
| spellingShingle | Chendi Yang Hang Pu Lin Mu Lin Zhou Junjiang Bao Yining Zhang Ming Dong Multi-objective synergistic optimization of closed Brayton cycle superstructure for thermal protection system of high-Mach-number air-breathing vehicles Case Studies in Thermal Engineering Air-breathing vehicles Closed Brayton cycle Superstructure Working fluid Multi-objective synergistic optimization |
| title | Multi-objective synergistic optimization of closed Brayton cycle superstructure for thermal protection system of high-Mach-number air-breathing vehicles |
| title_full | Multi-objective synergistic optimization of closed Brayton cycle superstructure for thermal protection system of high-Mach-number air-breathing vehicles |
| title_fullStr | Multi-objective synergistic optimization of closed Brayton cycle superstructure for thermal protection system of high-Mach-number air-breathing vehicles |
| title_full_unstemmed | Multi-objective synergistic optimization of closed Brayton cycle superstructure for thermal protection system of high-Mach-number air-breathing vehicles |
| title_short | Multi-objective synergistic optimization of closed Brayton cycle superstructure for thermal protection system of high-Mach-number air-breathing vehicles |
| title_sort | multi objective synergistic optimization of closed brayton cycle superstructure for thermal protection system of high mach number air breathing vehicles |
| topic | Air-breathing vehicles Closed Brayton cycle Superstructure Working fluid Multi-objective synergistic optimization |
| url | http://www.sciencedirect.com/science/article/pii/S2214157X25008160 |
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