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Vol.4 , No. 6, Publication Date: Dec. 5, 2017, Page: 84-88
| [1] | Ali Mirmohammadi, Department of Mechanical Engineering, Shahid Rajaee Teacher Training University, Tehran, Iran. |
| [2] | Amin Kalhor, Department of Shahid Beheshti, Technical and Vocational University, Karaj, Iran. |
According to the Global Fuel Crisis, it seems necessary to increase the efficiency of internal combustion engines. One way for achieve this target, is engine downsizing by using turbocharger. Turbocharger using makes combustion more efficient and better. The purpose of this paper is studying effect of turbocharger using on engine performance and emissions by various compression ratios. The simulated model was validated in different engine RPMs for gasoline, were injected into the engine at full load condition. The results of simulation was had good agreement with experiments. The results shown that by turbocharger, engine power and torque, Due to increased pressure inside the cylinder, increased. Pollutant emissions such as NOX, HC and CO due to hydrocarbon fuels incomplete combustion is reduced by increasing the amount of oxygen involved in the reactants. But CO2 pollution has increased due to the complete combustion of hydrocarbons.
Keywords
Turbocharger, Compression Ratio, Simulation, Engine Performance
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