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  • Summary & Details

Study of Jet Behavior and Mixture Formation Processes in Hydrogen Engines

水素エンジンの混合気均質化に関わる噴流挙動と混合気形成過程の解析

Detailed Information

Author(J)1) 鮎川 健, 2) 山口 顕央, 3) 西村 星耶, 4) 佐々木 覚, 5) 後藤 政典, 6) 芹澤 一史
Author(E)1) Ken Ayukawa, 2) Akichika Yamaguchi, 3) Seiya Nishimura, 4) Satoru Sasaki, 5) Masanori Goto, 6) Kazufumi Serizawa
Affiliation(J)1) デンソー, 2) デンソー, 3) デンソー, 4) デンソー, 5) デンソー, 6) デンソー
Affiliation(E)1) DENSO, 2) DENSO, 3) DENSO, 4) DENSO, 5) DENSO, 6) DENSO
Abstract(J)水素エンジンはカーボンニュートラルの実現に向けた有望な選択肢であるが,異常燃焼回避と高出力・低NOxの両立には,混合気の均質度向上が課題である.本研究では,均質混合気形成に必要な噴射・噴流の要件について,エンジン筒内における混合気形成メカニズムに着目し,CFD解析およびエンジン実機評価により明らかにした.

Translation

Abstract(E)Hydrogen engines are a promising option for achieving carbon neutrality, but improving the homogeneity of the air-fuel mixture is a challenge in achieving both abnormal combustion avoidance and high power/low NOx emissions. In this study, we focused on the air-fuel mixture formation mechanism within the engine cylinder and clarified the injection and jet requirements necessary for homogeneous mixture formation through CFD analysis and engine test.

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