ABSTRACT

The present experimental investigation is related to the performance and exhaust emission parameters of Multi-Cylinder Direct Injection (DI) Compression Ignition (CI) engine fueled with various proportions of Argemone Mexicana (Argemone Mexicana Linn.) with diesel such as 0BD+100D (Neat Diesel), 25BD+75D, 50BD+50D, 75BD+25D, and 100BD+0D (Neat Bio-diesel) at various speed ranges of 1200, 1600, 2000, and 2400 rpm. The present work focuses on reducing the oxides of nitrogen (NO_x) by using the Selective Catalytic Reduction (SCR) technique and compared the test results with the Conventional Engine (CE) method at various speed and different blends of fuel. In Conventional Engine, the percentage reduction in brake thermal efficiency for neat biodiesel (B-100) at lower speed and higher speed is 3.49% and 3.07%, respectively, as compared to B-0 and B-25. For B-100, the percentage increase in brake-specific fuel consumption at lower speed and higher speed is 29.16% and 30.01%, respectively, as compared to B-0 and B-25. The percentage reduction in heat release rate for neat bio-diesel is 27.44% at zero degree crank angle as compared to neat diesel fuel. At lower speed (1200 rpm) and higher speed (2400 rpm), the percentage reduction in smoke density is 8.31% and 9.61% for B-25 as compared with B-100, respectively. The percentage reduction in hydrocarbon at lower speed and higher speed is 21.42% and 23.53% for B-0 as compared with B-100, respectively. The percentage reduction in CO for B-25 is 4.17% and 11.43% at lower speed and higher speed, respectively, as compared with B-0. The same trend is observed from the SCR technique method. There is a significant reduction of oxides of nitrogen noted for B-100 with SCR technique at a lower and higher speed of 16.45% and 17.56%, respectively, as compared to Conventional Engine. However, the engine performance such as Brake Thermal Efficiency (BTE), Brake Specific Fuel Consumption (BSFC), Heat Release Rate (HRR), and other emissions such as Hydrocarbon (HC), Carbon monoxide (CO), and Smoke Density (SD), B-25 (25BD+75D) gives better results while compared to neat diesel (0BD+100D) and higher blends for all the speeds in Conventional Engine and Selective Catalytic Reduction technique.

摘要

当前的实验研究与多缸直喷（DI）压缩点火（CI）发动机的性能和废气排放参数有关，该发动机使用各种比例的墨西哥玉米（Argemone Mexicana Linn。）柴油和0BD + 100D（Neat）柴油柴油，25BD + 75D，50BD + 50D，75BD + 25D和100BD + 0D（Neat Bio-diesel），转速分别为1200、1600、2000和2400 rpm。目前的工作集中在还原氮氧化物（NO _x），使用选择性催化还原（SCR）技术，并将测试结果与常规发动机（CE）方法在各种速度和不同混合燃料下进行比较。在常规发动机中，与B-0和B-25相比，纯生物柴油（B-100）在低速和高速下的制动热效率降低的百分比分别为3.49％和3.07％。对于B-100，与B-0和B-25相比，低速和高速时制动器专用油耗的增加百分比分别为29.16％和30.01％。与纯柴油相比，零度曲柄角下纯生物柴油的放热率降低的百分比为27.44％。在较低速度（1200 rpm）和较高速度（2400 rpm）下，与B-100相比，B-25的烟密度降低百分比分别为8.31％和9.61％。与B-100相比，B-0在低速和高速下的碳氢化合物减少百分比分别为21.42％和23.53％。与B-0相比，B-25在低速和高速下的CO减少百分比分别为4.17％和11.43％。从SCR技术方法观察到相同的趋势。与传统发动机相比，采用SCR技术的B-100在较低和较高的速度下分别显着减少了氮的氧化物，分别为16.45％和17.56％。但是，发动机性能，例如制动热效率（BTE），制动特定燃料消耗量（BSFC），热释放率（HRR），以及其他排放物，例如碳氢化合物（HC），一氧化碳（CO）和烟气密度（SD） ），