海洋柴油发动机中的生物柴油和酒精-生物柴油混合物:燃料特性,发动机行为,环境影响和运行挑战
D Christopher Selvam1, Yuvarajan Devarajan1, T Raja2
1Department of Mechanical Engineering, Saveetha School of Engineering, SIMATS, Saveetha University, Chennai, Tamil Nadu, India.
Marine pollution bulletin
|December 30, 2025
概括
生物柴油-酒精混合物作为可持续的海洋燃料具有前景,保持发动机效率,同时减少有害排放. 储存和微生物生长等挑战需要进一步关注,以便在航运业广泛采用.
科学领域:
- 海洋工程 海洋工程是指海洋工程.
- 可持续的燃料 可持续的燃料
- 环境科学环境科学
背景情况:
- 国际海事组织 (IMO) 2023年温室气体战略和EEXI/CII法规推动了对低碳海洋燃料的需求.
- ISO 8217燃料标准正在不断发展,需要替代传统船舶燃料.
- 现有的船舶推进系统需要能够进行改装的燃料解决方案.
研究的目的:
- 评估生物柴油-酒精混合物作为传统海洋燃料的可行,可改造的替代品.
- 分析不同发动机类型中这些混合物的燃料特性,燃烧动力学,排放量和运行限制.
- 评估与生物柴油-酒精混合物相关的海洋特异性挑战和环境影响.
主要方法:
- 发动机分类的方法综合:低速两冲程主发动机和中高速四冲程辅助发动机.
- 燃料特性与燃烧动态,排放 (CO,HC,PM,NOx),材料兼容性和运行限制的相关性.
- 严格评估海洋特有的障碍:冷流可操作性,储存稳定性,注入器问题,微生物生长和腐蚀.
- 对生物降解性和水生有毒性的评估.
主要成果:
- 生物柴油-酒精混合物 (B20-B30) 通常保持制动的热效率.
- 观察到一氧化碳 (CO),碳化合物 (HC) 和颗粒物 (PM) 排放的显著减少.
- 氧化 (NOx) 排放可以通过废气循环和注入优化来减轻.
- 诸如冷流特性,储存稳定性和微生物污染等海洋特有的挑战是关键考虑因素.
- 废食用油生物柴油为资源循环提供了一条途径.
结论:
- 生物柴油-酒精混合物为减少海洋排放提供了一个有前途的可改装解决方案.
- 解决运营和存储方面的挑战对于成功实施至关重要.
- 专注于废油生物柴油和高效的港口物流可以加速可持续的海上贸易.
- 这些混合物有助于建立一个更可持续的全球航运框架.
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