Mubarak Marutholi, Shaija Andavan, Suchithra Tharamel Vasu
Department of Mechanical Engineering, MEA Engineering College Perinthalmanna, Malappuram, 679325, India.
Department of Mechanical Engineering, National Institute of Technology, Calicut, 673601, India.
Heliyon. 2024 May 3;10(9):e30681. doi: 10.1016/j.heliyon.2024.e30681. eCollection 2024 May 15.
In this study, microemulsion synthesized from chemically extracted oil with diesel was evaluated as fuel in stationary unmodified diesel engine. The microemulsions from oil was prepared using the best combinations of 67% oil, 15% ethanol, 13% water and 5% surfactant (span 80) and its properties were compared with that of diesel. The engine test conducted with M10, M20 and M30 blends and reported a brake thermal efficiency of 29.76% and brake specific fuel consumption of 0.3239 kg/kWh with M20. The emissions like NO and smoke reduced by 18.07% and 7.37%, respectively, with marginal increase in CO, CO and unburned hydrocarbon by 3.8%, 3.4% and 16.66% respectively, with M20 compared to diesel at maximum engine load of 3.73 kW. At lower engine loads with M10, M20 and M30 slightly lower CO emission than diesel. A drop in peak pressure and heat release rate was found to be 1.73% and 8.40%, correspondingly with M20, as that of diesel. Even though a slight reduction in brake thermal efficiency observed with M20 as compared to M10 and diesel by considering the lowest emissions of NO and smoke, it is feasible to use as promising fuel for unmodified diesel engines.
在本研究中，对由化学提取的油与柴油合成的微乳液作为固定式未改装柴油发动机的燃料进行了评估。使用67%的油、15%的乙醇、13%的水和5%的表面活性剂（Span 80）的最佳组合制备了来自油的微乳液，并将其性能与柴油进行了比较。用M10、M20和M30混合燃料进行的发动机测试报告称，M20的制动热效率为29.76%，制动比油耗为0.3239 kg/kWh。在3.73 kW的最大发动机负荷下，与柴油相比，M20的氮氧化物和烟雾排放分别减少了18.07%和7.37%，一氧化碳、二氧化碳和未燃烧碳氢化合物分别略有增加，为3.8%、3.4%和16.66%。在较低发动机负荷下，M10、M20和M30的一氧化碳排放略低于柴油。发现M20的峰值压力和热释放率与柴油相比分别下降了1.73%和8.40%。尽管与M10和柴油相比，M20的制动热效率略有降低，但考虑到氮氧化物和烟雾的最低排放，它作为未改装柴油发动机的有前景燃料是可行的。
