Research Scholar, Anna University, Chennai, Tamilnadu, 600025, India.
Department of Mechanical Engineering, Vel Tech Multitech, Avadi, Chennai, Tamilnadu, 600062, India.
Environ Sci Pollut Res Int. 2018 Dec;25(35):35210-35220. doi: 10.1007/s11356-018-3419-7. Epub 2018 Oct 18.
Experimental investigation about the ceramic coating on diesel engine components is to evaluate its effective efficiency with respect to different loads. It is conducted on the Kirloskar single cylinder diesel engine; in addition, the engine performance, emission, and combustion have been analyzed by treating with the coated piston on the engine runs with diesel (D100) and biodiesel (B100). Yttria-stabilized zirconia is the ceramic agent coated on the piston with the help of plasma spray coating method. After the experimental results based on the comparison of coated and uncoated piston, it shows that the coated piston performed very effectively with increased brake thermal efficiency, decreased specific fuel consumption at all applied spectrum of loads. The emission is also evaluated with special equipment for testing and it shows that the hydrocarbon and carbon monoxide are some major pollutants tend to reduce in the coated piston than the uncoated piston. But there is an increase in nitrogen monoxide where it is controlled by varying injection timing and pressure with advanced fuel injectors according to the survey. Other benefits of this thermal barrier coating are that thermal fatigue faced by the surface of the components can be reduced to a greater level. The combustion has high heat release rate and pressure due to the complete heat within the insulated chamber without any conduction through the surface of the surrounded components.
关于柴油机部件陶瓷涂层的实验研究是为了评估其在不同负荷下的有效效率。这项研究是在 Kirloskar 单缸柴油机上进行的；此外，通过在发动机上使用涂覆的活塞来处理柴油（D100）和生物柴油（B100），还分析了发动机的性能、排放和燃烧情况。氧化钇稳定氧化锆是一种陶瓷剂，通过等离子喷涂涂层方法涂覆在活塞上。在对涂覆和未涂覆活塞的实验结果进行比较后，结果表明，在所有应用负荷范围内，涂覆活塞的制动热效率提高，比油耗降低，性能非常有效。排放也使用特殊的测试设备进行了评估，结果表明，与未涂覆活塞相比，涂覆活塞的碳氢化合物和一氧化碳等主要污染物排放量有所减少。但氮氧化物有所增加，可通过根据调查情况使用先进的喷油器改变喷油定时和压力来控制。这种热障涂层的其他好处是，可以将部件表面面临的热疲劳降低到更大的水平。由于绝热室内完全隔热，没有通过周围部件表面进行任何热传导，因此燃烧具有较高的热释放率和压力。
