进气空气预热对使用柴油-生物柴油-乙醇混合物的柴油发动机性能和排放的影响
Kumlachew Yeneneh1, Elias Wakshume2, Besufekad Negash Fetene3
1Department of Motor Vehicle Engineering, College of Engineering, Ethiopian Defence University, Bishoftu, P.O. Box 1041 1041, Ethiopia.
ACS omega
|September 2, 2025
概括
进气预热可以改善压缩点火发动机中的柴油-生物柴油-乙醇燃料混合物. 这种可持续能源方法提高了效率,减少了有害排放,为交通提供了更清洁的替代方案.
科学领域:
- 可持续能源解决方案
- 燃烧工程
- 环境科学
背景情况:
- 人们越来越担心化石燃料的耗尽和环境污染,
- 生物柴油和乙醇有望减少对传统柴油的依赖并降低排放.
- 燃料兼容性和燃烧效率方面的挑战阻碍了柴油发动机广泛采用生物燃料.
研究的目的:
- 研究吸入空气预热和柴油-生物柴油-乙醇三元燃料混合物对发动机性能和排放的联合影响.
- 在环境和预热吸入空气条件下评估棉生物柴油-乙醇混合物 (B20E10,B30E10,B40E10).
- 评估对车热效率 (BTE),车特定燃油消耗 (BSFC) 和气体排放 (CO,HC,NOx,CO2) 的影响.
主要方法:
- 使用柴油-生物柴油-乙醇三元混合物的单压缩点火发动机进行了实验.
- 在环境 (25 °C) 和预热 (51 °C) 之间变化的吸入空气温度.
- 测量的主要性能指标包括BTE,BSFC和排放 (CO,HC,NOx,CO2).
主要成果:
- 吸入空气预热提高了燃烧效率,减少了高达11.11%的BSFC,并增加了4.28%的BTE.
- 在所有测试的燃料混合物中,二氧化碳和气排放量显著降低.
- 由于气内温度较高,预热空气的氧化物排放量增加;B20E10显示出最佳的整体性能和排放情况.
结论:
- 进气预热是一种提高现有柴油发动机性能和减少可再生燃料混合物的排放的经济有效策略.
- 棉花生物柴油-乙醇混合物,特别是B20E10,为更清洁的燃烧和能源多样化提供了可行的途径.
- 结果支持在能源安全和环境可持续性方面采取当地生物燃料的实际应用,特别是在资源较少的环境中.
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