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实验和优化研究关于二甲基乙添加到废塑料油对柴油发动机特性影响的研究
Attasit Wiangkham1, Niti Klinkaew2, Prasert Aengchuan3
1Department of Industrial Engineering, Faculty of Engineering, Srinakharinwirot University Ongkharak Nakhon Nayok 26120 Thailand.
RSC advances
|August 28, 2023
概括
在废塑料油 (WPO) 中添加乙烯 (DEE) 可以提高柴油发动机在高负载下的性能,并减少氧化物排放. 最佳的DEE度在10%至14%之间,以获得最大的效率和最小的NOx.
科学领域:
- 化学工程是化学工程的重要组成部分.
- 燃烧科学 燃烧科学
- 环境科学 环境科学
背景情况:
- 混合塑料废物的热解产生废塑料油 (WPO),这是一个潜在的柴油燃料替代品.
- WPO属性需要优化,以便在柴油发动机中实现高效和清洁的燃烧.
- 乙乙 (DEE) 作为增强WPO燃料特性的添加剂正在被探索.
研究的目的:
- 调查DEE添加对WPO发动机性能,燃烧和排放的影响.
- 为了确定最佳的DEE度以提高燃油效率和减少污染物形成.
- 用先进的算法开发一个用于优化WPO-DEE混合的预测模型.
主要方法:
- 混合WPO与不同度的DEE (5%,10%,15%).
- 在四柴油发动机上进行发动机性能和排放测试.
- 使用非主导排序遗传算法II (NSGA-II) 与通用回归神经网络 (GRNNs) 进行多目标优化.
主要成果:
- WPO-DEE混合物显示密度和点火点下降,但 cetane指数有所改善.
- 在DEE添加后,发动机性能在高负载下得到改善,而NOx排放量显著下降.
- GRNNs模型准确预测了制动热效率 (BTE) 和NOx (R2 > 0.91).
结论:
- 添加DEE到WPO可以提高柴油发动机的性能,并减少NOx排放,特别是在较高负载时.
- 确定了10% - 14%的最佳DEE度,以最大限度地提高BTE并最大限度地减少NOx.
- 根据NSGA-II-GRNNs的方法,有效地优化燃料混合物,以改善燃烧和减少对环境的影响.
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