Effects of Azeotropic Phenomena in Ethanol-Blended Gasoline on Liquid Film Evaporation Characteristics during Cold Start
エタノール混合ガソリンの共沸現象が冷間始動時の液膜蒸発特性に及ぼす影響
- Delivery
- Available on this site
- Format
- Price
- Non-members (tax incl.)：￥1,100 Members (tax incl.)：￥880
- Publication code
- 20266302
- Paper/Info type
- Proceedings (Autumn)
No.156-26
- Pages
- 1-2(Total 2 p)
- Date of publication
- Oct 2026
- Publisher
- JSAE
- Language
- Japanese
- Event
- 2026 JSAE Annual Congress (Autumn)
Detailed Information
| Author(J) | 1) 佐藤 志龍, 2) 田村 賢治, 3) 長田 知己, 4) 内田 健児, 5) 堀 隼基, 6) 飯田 晋也, 7) 草鹿 仁 |
|---|---|
| Author(E) | 1) Siryu Sato, 2) Kenji Tamura, 3) Tomoki Nagata, 4) Kenji Uchida, 5) Junki Hori, 6) Shinya Iida, 7) Jin Kusaka |
| Affiliation(J) | 1) 早稲田大学大学院, 2) 早稲田大学大学院, 3) 早稲田大学, 4) マツダ, 5) マツダ, 6) マツダ, 7) 早稲田大学 |
| Affiliation(E) | 1) Waseda University, 2) Waseda University, 3) Waseda University, 4) Mazda, 5) Mazda, 6) Mazda, 7) Waseda University |
| Abstract(J) | エタノール混合燃料の液膜蒸発特性を定容容器実験および3D熱流体計算で調査した．エタノールはガソリン由来の高沸点成分と共沸して蒸発を促進し，共沸補正した解析でもその挙動を再現した．蒸発特性は，共沸による蒸発速度向上と，高い蒸発潜熱による吸熱という，温度低下をもたらす2つの要因に支配されると結論付けた． Translation |
| Abstract(E) | Liquid film evaporation characteristics of ethanol-blended fuels were investigated using a constant-volume chamber and 3D-CFD. Ethanol was found to promote the evaporation of high-boiling-point components through azeotropy, a phenomenon further confirmed in simulations incorporating an azeotropic correction model. The numerical results led to the conclusion that evaporation characteristics are governed by two competing factors related to temperature drop: the enhancement of evaporation rates due to azeotropy and the increase in latent heat of vaporization. |
