Department of Mechanical Engineering, R. M. K. College of Engineering and Technology, Thiruvallur, Tamil Nadu, 601206, India.
Department of Mechanical Engineering, Dr. M. G. R. Educational and Research Institute, Chennai, 600095, India.
Environ Sci Pollut Res Int. 2021 Aug;28(29):39210-39226. doi: 10.1007/s11356-021-13367-x. Epub 2021 Mar 22.
The research work investigates the combustion, performance, and emission characteristics of a CI engine using neat biodiesel (B100: 100% rubber seed oil methyl ester) mixed with alumina and titanium oxide nanoparticles in the proportions of 25 ppm and 50 ppm separately. Nanoparticles (alumina and titanium dioxide) in different proportions like 25 ppm and 50 ppm were mixed with the neat biodiesel, and 2% of surfactant (Span80) was added, and the mixtures were agitated by an ultrasonicator to achieve uniform particle dispersion in the blend. The nanoparticle-blended biodiesel mixtures are designated as B100A25 (B100 + 25 ppm of alumina), B100A50 (B100 + 50 ppm of alumina), B100T25 (B100 + 25 ppm of TiO), and B100T50 (B100 + 50 ppm of TiO). Experiments were conducted in a single-cylinder DI diesel engine using neat biodiesel blended with alumina and titanium dioxide nanoparticle mixtures at different operating conditions. The test results revealed that the brake thermal efficiency (BTE) of the engine with nanoparticle-blended fuel (B100T50) increased by 5.2% and brake-specific fuel consumption (BSFC) decreased by 10.56%. The CO, HC, and smoke emissions decreased by 44%, 28%, and 44%, respectively, whereas the NO emissions increased by 21% as compared to that of neat biodiesel at full load.
本研究工作调查了在不同比例下（分别为 25ppm 和 50ppm），使用单独的生物柴油（B100：100%橡胶籽油甲酯）与氧化铝和二氧化钛纳米粒子混合的情况下，CI 发动机的燃烧、性能和排放特性。在不同比例（如 25ppm 和 50ppm）下将纳米粒子（氧化铝和二氧化钛）与纯生物柴油混合，并添加 2%的表面活性剂（Span80），然后通过超声仪搅拌混合物，以实现混合物中颗粒的均匀分散。将纳米粒子混合的生物柴油混合物分别指定为 B100A25（B100+25ppm 氧化铝）、B100A50（B100+50ppm 氧化铝）、B100T25（B100+25ppm TiO）和 B100T50（B100+50ppm TiO）。在单缸直喷式柴油机中进行了实验，使用纯生物柴油与氧化铝和二氧化钛纳米粒子混合物在不同的运行条件下进行了实验。测试结果表明，与使用纯生物柴油相比，使用纳米粒子混合燃料（B100T50）的发动机的制动热效率（BTE）提高了 5.2%，比油耗（BSFC）降低了 10.56%。CO、HC 和烟度排放分别降低了 44%、28%和 44%，而在全负荷下，NO 排放增加了 21%。
