Simulation of the effect of replacing gasoline with gaseous fuel on TU5 engine performance

Articles in Press

Document Type : Original Article

Authors

• Javad Khadem ¹
• Ali Asadi ²
• Asadollah Bastami ¹

¹ Department of Mechanical Engineering, Faculty of Engineering, University of Birjand, Birjand, Iran

² Department of Mechanical Engineering, Faculty of Engineering, Bozorgmehr University of Qaenat, Qaen

10.22067/jacsm.2025.92686.1326

Abstract

In recent years, the substitution of gaseous fuels for liquid fuels in internal combustion engines has received considerable attention. In this paper, the effect of using gaseous fuels such as methane and propane instead of gasoline on the performance parameters of the TU5 engine, which is one of the most widely used engines in the country's automotive industry, has been simulated using the one-dimensional fluid dynamics software GT-Power. The results showed that using gaseous fuel, due to occupying a certain volume of air, led to a decrease in volumetric efficiency, with the reduction in volumetric efficiency being greater for methane compared to propane. Additionally, using gaseous fuel in the gasoline engine, without making significant changes such as altering the compression ratio, resulted in a reduction in brake power and torque. The results also showed that the optimal spark timing also changes simultaneously with the change in the type of fuel in the engine. The comparison between simulation and experimental results showed relatively good agreement.

Keywords

• Engine TU5
• Gas Fuel
• Spark Timing
• Simulation
• GT-Power

Main Subjects

• Combustion

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