Department of Mechanical and Manufacturing Engineering, Manipal Institute of Technology, Manipal Academy of Higher Education, Manipal, 576104, India.
Faculty of Engineering and Applied Science, University of Ontario Institute of Technology, 2000 Simcoe Street North, Oshawa, Ontario, L1H 7K4, Canada.
Environ Sci Pollut Res Int. 2018 Jun;25(18):17789-17796. doi: 10.1007/s11356-018-1948-8. Epub 2018 Apr 19.
Two-stroke petrol engines find wide applications in the areas like chain saws, weed cutters, and power sprayers because of their compactness and higher power to weight ratio. In the present study, the feasibility of using vegetable-based lubricant instead of ordinary mineral 2 T oil is investigated. M15 (85% petrol + 15% methanol) and E15 (85% petrol + 15% ethanol) blend with gasoline are used as the fuel. Experiments were carried out in a two-stroke air-cooled engine equipped with a rope brake dynamometer. It is observed that the vegetable-based lubricant (sunflower oil) is miscible with the tested fuels. The frictional power for the vegetable-based lubricant was found to be less than that of mineral 2 T oil. The brake thermal efficiency improved and the brake-specific fuel consumption decreased for the sunflower oil-based lubricant. The combination of E15 + sunflower oil lubricant exhibited the greatest benefits, raising the brake thermal efficiency by 3.4% and reducing the brake-specific fuel consumption by 1.4%. Hydrocarbon and carbon monoxide emissions were lower for the vegetable-based lubricant than the 2 T mineral oil.
二冲程汽油发动机因其紧凑性和更高的功率重量比，在链锯、除草机和动力喷雾器等领域得到了广泛应用。本研究探讨了使用植物基润滑剂代替普通矿物 2T 油的可行性。M15（85%汽油+15%甲醇）和 E15（85%汽油+15%乙醇）混合汽油被用作燃料。实验在配备绳索制动测功机的二冲程风冷发动机上进行。结果表明，植物基润滑剂（葵花籽油）与测试燃料具有互溶性。与矿物 2T 油相比，植物基润滑剂（葵花籽油）的摩擦功率更小。使用葵花籽油基润滑剂可提高制动热效率并降低比油耗。E15+葵花籽油润滑剂的组合效果最佳，可将制动热效率提高 3.4%，比油耗降低 1.4%。与矿物 2T 油相比，植物基润滑剂的碳氢化合物和一氧化碳排放量更低。
