Modares Mechanical Engineering

Modares Mechanical Engineering

Effect of Water-Methanol Mixture Injection in Intake Manifold on Performance and Emission of a Turbocharged SI Engine

Document Type : Original Research

Authors
1 Faculty of Mechanical Engineering, K. N. Toosi University of Technology
2 K. N. Toosi University of Technology
Abstract
This study investigates the effects of water-methanol mixture injection on the performance and emissions of the EF7 TC engine. Using GT Power software, the engine was first simulated and validated with gasoline fuel. Subsequently, a nozzle was used to introduce the water-methanol mixture, simulated in three different ratios: 50% water-50% methanol, 25% water-75% methanol, and 75% water-25% methanol. The novelty of this research lies in the simulation of this injection process to enhance combustion quality. Results indicate significant temperature reductions at various points, alongside notable changes in knock characteristics and emissions, including nitrogen oxides (NOx), carbon monoxide (CO), carbon dioxide (CO₂), and nitrogen monoxide (NO).
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