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http://dx.doi.org/10.5762/KAIS.2018.19.12.54

Investigation of Emission Gas by using the Intake Manifold Gasket Blade  

Lee, Minjung (Graduate school of Mechanical engineering, Chosun University)
Kim, Taejung (Department of Automobile, Dalseong Campus of Korea Polytechnics)
Shin, Yunchan (Graduate school of Mechanical engineering, Chosun University)
Cho, Honghuyn (Department of Mechanical engineering, Chosun University)
Publication Information
Journal of the Korea Academia-Industrial cooperation Society / v.19, no.12, 2018 , pp. 54-61 More about this Journal
Abstract
Incomplete combustion in automotive engines is a major cause of harmful exhaust gases. In this study, to prevent incomplete combustion and reduce exhaust gas emissions, a gasket blade for increasing the air velocity was applied to the intake manifold, and the change in exhaust gas was investigated theoretically and experimentally. First, simulation analysis for flow according to the number and angle of the gasket blade was performed using a 3D flow analysis program. As an analysis result, the internal average velocity of the gasket blade was optimum at 6-blade with an angle of $30^{\circ}$. Based on the simulation results, experiments were conducted to verify the effects of the gasket blades on the exhaust gas in a non-load engine simulation system. As the engine speed was increased from 2000 to 4000 rpm, exhaust gases of HC, CO, and NOx decreased by 23.4%, 16.5%, and 3.8%, respectively, and the emission decreasing effect was reduced.
Keywords
Emission gas; Gasket blade; Intake manifold; Maximum velocity; Turbulent kinetic energy;
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