butanol和hexanol对RCCI发动机效率和排放特征的影响,使用佐波塔油甲基和响应表面方法
Anusha Mylavarapu1, R Manikandan2, Mamdooh Alwetaishi3
1Research Scholar, Department of Mechanical Engineering, FEAT, Annamalai University, Annamalai Nagar, Chidambaram, Tamil Nadu, India. anusha.mylavarapu@gmail.com.
Scientific reports
|September 30, 2025
概括
这项关于反应性控制压缩点火 (RCCI) 发动机的研究发现,将萨波塔油甲基 (SOME) 与丁醇或醇混合,可以提高发动机效率并减少HC和CO等有害排放. 这些可持续的燃料混合物为更清洁的发动机运行提供了有希望的途径.
科学领域:
- 其他替代燃料 替代燃料
- 燃烧发动机的使用情况
- 可持续能源 可持续能源
背景情况:
- 生物柴油,特别是萨波塔油甲基 (SOME),是一种研究不足的替代燃料.
- 像butanol和hexanol这样的含氧添加剂可能会提高生物柴油的性能并减少排放.
- 反应性控制式压缩点火 (RCCI) 发动机提供了一个评估新燃料混合物的平台.
研究的目的:
- 为了研究RCCI发动机的性能,排放和燃烧特性,使用与butanol和hexanol混合的SOME.
- 评估氧化添加剂对基于SOME的燃料混合物的协同效应.
- 优化燃料混合物,以提高发动机效率和减少对环境的影响.
主要方法:
- 准备了佐帕油甲基 (SOME),布坦醇,六醇和柴油的燃料混合物.
- 使用响应表面方法 (RSM) 分析和比较燃料混合物,如B20D80,B20BU10D70和B20HEX10D70.
- 测量了发动机性能 (制动热效率 - BTE,制动特定能耗 - BSEC),排放 (HC,CO,CO2,烟雾) 和燃烧行为.
主要成果:
- 制动热效率 (BTE) 增加了含氧混合物,而六醇比B20混合物改善了0.70%.
- 车特异能消耗 (BSEC) 在butanol (3.29%) 和hexanol (4.5%) 混合物中显著下降.
- 碳化合物 (HC) 和一氧化碳 (CO) 的排放量分别减少了4.65%和63%,添加了10%的酒精.
- 二氧化碳排放量最初随着负载增加而增加,但随着负载增加而减少.
- 使用10%的六醇,烟雾排放量减少了6.66%,尽管酒精含量更高,但烟雾增加了.
- 燃烧分析证实,由于改善了氧气供应和原子化,中度的butanol和hexanol提高了效率.
结论:
- B20 SOME + 10% 布坦醇 + 70% 柴油 (B20BU10D70) 和 B20 SOME + 10% 六醇 + 70% 柴油 (B20HEX10D70) 的混合物证明了可持续燃料利用的可行性.
- 这些优化的混合物在提高发动机性能和遵守排放法规之间取得了平衡.
- 该研究为优化生物柴油-酒精-柴油混合物提供了宝贵的见解,以实现更清洁,更高效的内燃机运行.
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