Hameed Abdul Zubar, Muralidharan Kandasamy
Industrial Engineering Department, King Abdulaziz University, Jeddah21589, Saudi Arabia.
Department of Mechanical Engineering, Sona College of Technology, Salem636005, India.
ACS Omega. 2023 Jan 31;8(6):5692-5701. doi: 10.1021/acsomega.2c07193. eCollection 2023 Feb 14.
Diesel engines are particularly harmful to the environment due to the high levels of pollution they release. This led to the discovery of a sustainable and environmentally friendly fuel source. Mahua oil transesterified into biofuel seems to be the most popular option. The possibilities for nano-additions to enhance engine performance while simultaneously lowering pollution levels are substantial. In this research, 20% by proportion mahua biodiesel (MAH B20) was mixed with varying concentrations of aluminum oxide (AlO) and cerium oxide (CeO) nanoparticles, and their joint effects on a mono-cylinder diesel engine working at a speed of 1500 revolutions per minute (rpm) were evaluated. With the use of an ultrasonic bath, the nanoparticles and MAH B20 were blended at varying concentrations and a surfactant was added for stability. The investigations concluded that the combustion and emission properties of mahua biofuel were improved because of the higher volume to surface area ratio of the combined AlO and CeO nanostructures. The best results are found when mahua biofuel is mixed with AlO and CeO each at 100 parts per million (ppm). The blend MAH B20 AL100 CE100 exhibits reduced brake specific fuel consumption (BSFC) by 3.25%, increased brake thermal efficiency (BTE) by 1.39%, and reduced emissions of hydrocarbon (HC), oxides of nitrogen (NO), and carbon monoxide (CO) by 30.73, 1.27, and 44.13%, respectively.
柴油发动机由于其排放的高污染水平而对环境特别有害。这促使人们发现了一种可持续且环保的燃料来源。经酯交换转化为生物燃料的麻疯树油似乎是最受欢迎的选择。添加纳米材料以提高发动机性能同时降低污染水平的可能性很大。在本研究中，将20%比例的麻疯树生物柴油（MAH B20）与不同浓度的氧化铝（AlO）和氧化铈（CeO）纳米颗粒混合，并评估了它们对一台转速为每分钟1500转（rpm）的单缸柴油发动机的联合影响。通过使用超声浴，将纳米颗粒与MAH B20以不同浓度混合，并添加一种表面活性剂以保持稳定性。研究得出结论，由于AlO和CeO纳米结构组合的体积与表面积比更高，麻疯树生物燃料的燃烧和排放特性得到了改善。当麻疯树生物燃料与AlO和CeO各以百万分之一百（ppm）混合时，得到了最佳结果。混合燃料MAH B20 AL100 CE100的制动比油耗（BSFC）降低了3.25%，制动热效率（BTE）提高了1.39%，碳氢化合物（HC）、氮氧化物（NO）和一氧化碳（CO）的排放量分别降低了30.73%、1.27%和44.13%。
