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ممنون Examine the impact of Initial Failure of Diesel Jet on the efficiency and Pollution of Diesel Engines

Abstract

Today, the pollution of diesel engines is one of the environmental problems and is not only a problem for human health but also a factor contrary to sustainable development. Therefore, in order to achieve optimal combustion systems, More attention to Engine pollution reduction solutions, especially diesel engines is nessessary. Another point is that not only the type of fuel used as a factor affecting environmental pollution, but also engine settings such as fuel type, fuel injection pressure, and type of injection and the shape of the combustion chamber can be effective in this process. 

Increasing population and consequently increasing demand for energy on the one hand and the reduction of fossil fuel sources have limited resources on the other hand; To solve this great and fundamental problem, scientists and researchers were forced to look for alternative solutions. One of the easiest and most important ways is to add nanoparticles to fossil fuels; another solution can be to use clean and renewable fuels; but it is much more desirable to use both of these solutions together.

In this study, initially four nanoparticles were selected from different nanoparticles based on the highest stability. By considering different scattering parameters of nanoparticles in diesel fuel, the optimal concentration and optimal conditions for more stability without adding surfactant for two different combinations of dual and quadruple hybrid nanofuels were obtained. After physical and chemical studies, it was time to calculate the parameters of these fuels in the diesel engine. These parameters included power, engine exhaust pollution, specific fuel consumption, torque and thermal efficiency.

The results showed that the addition of dual and quadruple hybrid nanoparticles improved other properties such as calorific value, cloud point and flash point, while there was no significant change in some properties such as density, viscosity and cetane index. Other parameters that have been significantly improved include diesel engine performance parameters such as specific fuel consumption, brake thermal efficiency and engine exhaust emissions.

Keywords: Diesel engines, pollutants, primary failure, fuel jet  این چکیده کار من هست

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