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Modeling and Experimental Study on Spark-Ignition Engine Using HydrogenMethaneBlended Fuel Mitsubishi Motors Corporation
- Format:
- Book
- Conference/Event
- Author/Creator:
- Hayashi, Shinji, author.
- Conference Name:
- Automotive Technical Papers (2025-01-01 : Warrendale, Pennsylvania, United States)
- Language:
- English
- Physical Description:
- 1 online resource cm
- Place of Publication:
- Warrendale, PA SAE International 2025
- Summary:
- A combustion model of a hydrogenmethaneblended fuel for internal combustion engines is developed and validated. Mixed fuels include hydrogenmethane, octanemethanol, and octaneethanol blends.To address the complex dependencies of laminar flame speed of hydrogenmethaneblended fuel on temperature, pressure, equivalence ratio, and exhaust gas recirculation (EGR) ratio, a machine learningbased model was constructed. Gaussian process interpolation and polynomial extrapolation were employed to create a comprehensive laminar flame speed map. Additionally, two flame-quenching models, wall quenching and turbulent flame stretching, were introduced to predict unburned hydrocarbons. NOx emissions were estimated using the extended Zel'dovich mechanism. The accuracy of these models was verified by comparing numerical simulations with experimental data from single-cylinder engine experiments. Results showed strong agreement for cylinder pressure, heat release rates, and emissions across various hydrogen ratios and engine operating conditions. Across all investigated cases, the model reproduced combustion duration (CA1090) within ±2.2°CA, with an error 11%. Notably, the machine learningbased laminar flame speed model demonstrated high accuracy, even at elevated temperatures and pressures, without requiring additional parameter tuning for turbulence flame model. This study highlights the highly accurate modeling techniques for simulating the combustion of renewable hydrogenmethane blends. The results in this study will contribute to the development of more efficient, lower emission internal combustion engines, and support the transition to sustainable vehicle technology
- Notes:
- Vendor supplied data
- Publisher Number:
- 2025-01-5056
- Access Restriction:
- Restricted for use by site license
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