The Journal of Engine Research

The Journal of Engine Research

Simulation of cylinder deactivation and its effects on emission and fuel consumption

Document Type : Original Article

Authors
Department of Mechanical Engineering, Technical and Vocational University (TVU), Tehran, Iran
Abstract
The increase in the temperature of the earth due to the increase in pollutants has caused researchers to provide solutions to control the temperature of the earth and reduce fuel consumption and emissions. Deactivating one or more cylinders is one of the ways to reduce emissions and fuel consumption. In this study, cylinder deactivation and its effect on XU7 engine performance, especially emissions and fuel consumption, were simulated with GT-Power software. The results obtained from the simulation were compared with the existing laboratory results, and after ensuring the validity of the model, the deactivation of a cylinder by cutting off a simulation injector and the obtained results were compared with the results of the normal state. The simulation results indicate a reduction in fuel consumption and emissions in the engine operation mode with three active cylinders compared to the engine operation with four active cylinders, and the comparison of the simulation results of three active cylinders with the normal mode showed that, respectively, the amount of brake specific carbon monoxide, brake specific hydrocarbon and brake specific nitrogen oxide have decreased by an average of 5.15, 1.17 and 11.42 percent, and the average brake-specific carbon dioxide has not changed significantly with cylinder deactivation, and the brake specific fuel consumption has decreased by an average of 2.03 percent.
Keywords

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  • Receive Date 26 May 2024
  • Revise Date 12 August 2024
  • Accept Date 13 August 2024