| Citation: | YI Weilin, WANG Shuyu, ZHANG Hanzhi. Numerical modeling and performance investigation of water enhanced turbofan engine[J]. Journal of Aerospace Power, 2026, 41（4）：20250116 doi: 10.13224/j.cnki.jasp.20250116
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To analyze the feasibility and energy-saving and emission reduction effects of recycling water working fluid in the exhaust of a turbofan engine, a simulation model of a water-enhanced system consisting of an evaporator, condenser, steam turbine and mixer was developed. Furthermore, a comprehensive performance simulation model for a conventional ultra-high bypass ratio turbofan engine and a water-enhanced turbofan engine was established to compare and analyze the engine performance under different flight conditions. Compared with the traditional turbofan engine architecture, the water-enhanced turbofan engine achieved the recycling of water working fluid in the exhaust, resulting in a 13.2% reduction in fuel consumption rate and a 13.5% reduction in specific energy consumption during cruising condition. The water-enhanced turbofan engine showed a significant improvement in carbon oxide emissions compared with traditional turbofan engines, although its nitrogen oxide emissions increased. The application of hydrogen fuel significantly reduced the fuel consumption of the water-enhanced turbofan engine, achieving zero carbon emissions while improving nitrogen oxide emissions.
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