DIMINUTION OF AIR POLLUTION FROM NOX AND SMOKE/SOOT EMITTED FROM ALCOHOLS/DIESEL BLENDS IN DIESEL ENGINE AND INFLUENCE OF THE EXHAUST GAS RECIRCULATION (EGR)

IF 1 4区环境科学与生态学 Q4 ENVIRONMENTAL SCIENCES

Journal of Environmental Engineering and Landscape Management Pub Date : 2023-04-26 DOI:10.3846/jeelm.2023.17410

M. Fayad, W. Alani, H. Dhahad, Jing Zheng

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引用次数: 3

Abstract

In this study, the impact of butanol-diesel blends and exhaust gas recirculation (EGR) on engine performance, NOX emissions, smoke, and particulate matter (PM) characteristics were experimentally investigated under fuel post-injection condition. The maximum peak of cylinder pressure is achieved under without EGR compared with applied different rates of EGR. Furthermore, the brake thermal efficiency (BTE) increased during the combustion of B20 and B10 by 4.25% and 2.61%, respectively, compared with diesel fuel combustion. Considerable reductions in carbonaceous gas emissions (CO and THC) and nitrogen oxides (NOX) were achieved from combustion of B20 and B10 compared to the diesel fuel for with and without EGR. The NOX emissions decreased with 30% of EGR compared with 15% of EGR for all fuels studied. The results indicated that the addition butanol to the diesel fuel significantly reduced smoke opacity and soot emissions by 31.3% and 35.26%, respectively, compared with diesel. It is observed that an effective reduction of the NOX emissions to be higher during the combustion of B20 compared to the combustion of B10 and diesel for different EGR rates. The results of PM emission showed increase by 16% under 15% of EGR and 28% under 30% of EGR compared to the without EGR for all fuels tested. The number, concentration and size of PM decreased from combustion of B20 and B10 compared with diesel fuel combustion for with and without EGR.

查看原文本刊更多论文

减少柴油发动机中酒精/柴油混合物排放的氮氧化物和烟雾/烟灰对空气的污染以及废气再循环的影响

在本研究中，在燃料后喷射条件下，实验研究了丁醇-柴油混合物和废气再循环（EGR）对发动机性能、NOX排放、烟雾和颗粒物（PM）特性的影响。与应用的不同EGR率相比，在没有EGR的情况下实现了气缸压力的最大峰值。此外，与柴油燃烧相比，B20和B10在燃烧过程中的制动热效率（BTE）分别提高了4.25%和2.61%。与使用和不使用EGR的柴油燃料相比，B20和B10的燃烧大大减少了碳质气体排放（CO和THC）和氮氧化物（NOX）。与所研究的所有燃料的15%的EGR相比，NOX排放量减少了30%。结果表明，与柴油相比，在柴油中添加丁醇可显著降低烟度和烟尘排放，分别降低31.3%和35.26%。观察到，在不同EGR率下，与B10和柴油的燃烧相比，B20的燃烧期间NOX排放的有效减少更高。PM排放的结果显示，对于所有测试的燃料，与没有EGR的燃料相比，在15%的EGR下增加了16%，在30%的EGR下提高了28%。与柴油燃料燃烧相比，B20和B10的燃烧在有EGR和无EGR的情况下PM的数量、浓度和大小都有所下降。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Journal of Environmental Engineering and Landscape Management 环境科学-环境科学

CiteScore

1.90

自引率

7.70%

发文量

审稿时长

>12 weeks

期刊介绍： The Journal of Environmental Engineering and Landscape Management publishes original research about the environment with emphasis on sustainability.