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通过从Scenedesmus obliquus藻类中提取的N-butanol增强生物柴油提高柴油发动机性能和排放

Haiter Lenin Allasi¹, Selvam Murugan², Harish Kanniah Ananda²

¹School of Mechanical and Chemical Engineering, Wollo University, Kombolcha Institute of Technology, Kombolcha, 208, Ethiopia. drahlenin@kiot.edu.et.

Scientific reports

|April 15, 2025

概括

这项研究优化了用于CRDI发动机的Scenedesmus obliquus生物柴油与n-butanol. 30A+20%的n-butanol混合物提高了效率,降低了燃料消耗,排放和烟雾.

科学领域:

* 可再生能源可再生能源
* 内部燃烧发动机的使用
* 燃烧分析方法

背景情况:

*对可持续燃料的日益增长的需求推动了对藻类生物柴油的研究.
* N-butanol 提供了作为生物柴油增强的绿色辅助燃料的潜力.
*在普通铁路直喷 (CRDI) 发动机中评估燃料混合物对于实际应用至关重要.

研究的目的:

*使用n-butanol从Scenedesmus obliquus藻类生产生物柴油.
*分析CRDI发动机中的藻类生物柴油-n-butanol混合物的发动机性能,燃烧特性和排放.
* 确定最佳的混合比,以改善发动机运行和减少对环境的影响.

主要方法:

* 生物柴油生产来自Scenedesmus obliquus藻类.
*燃料混合物的制备:30%的藻类 (30A),30A+10%的n-butanol,30A+20%的n-butanol,30A+30%的n-butanol.
*使用CRDI发动机进行发动机测试,将混合物与纯柴油 (D100) 对性能,燃烧和排放进行比较.

主要成果:

* 30A+20%的n-butanol混合物表现出最佳性能:比D100提高了10.96%的制动热效率和7.4%的特定燃油消耗.
*这种混合物减少了一氧化碳 (19.2%),烟雾不透明 (15%) 和碳化合物排放 (8%).
*燃烧分析显示了改进:气压力增加8.6%,热释放率增加36.43%,尽管NOx排放量略有增加.

结论:

*将n-butanol纳入Scenedesmus obliquus生物柴油可以显著提高CRDI发动机的性能和效率.
* 30A+20%的n-butanol混合物代表了一个有前途的替代燃料,平衡性能增长与减少有害排放.
*可能需要进一步的研究,以减轻在较高的n-butanol度下观察到的NOx排放的轻微增加.

关键词:

在CRDI-EGR发动机中.排放量排放量排放量排放量发动机的性能发动机的性能这是一种N-butanol.场景是斜的藻类.

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