Estudo experimental e numérico do sistema de admissão de um motor de combustão interna / Experimental and numerical study of the intake system of an internal combustion engine
AUTOR(ES)
Gustavo Rodrigues de Souza
DATA DE PUBLICAÇÃO
2010
RESUMO
During the process of intake air in the internal combustion engine it has been noted that air flow is not ideal, i.e., the cylinder volume is not completely occupied concerning the variation of specific mass and the charge loss along the feed system. Consequently, the volumetric efficiency in the cylinder reaches low values of performance, affecting the engine power. The aims of this work were a numerical and experimental study of the intake manifold in an internal combustion engine. The numerical solution is obtained through a commercial code which solves the transport equations, according to the continuity, momentum and energy principles by the method of finite volume discretization. Numerical data were validated by the experimental results set-up, enabling the mass flow, pressure and temperature measures of the intake air. The flow bench is composed by an internal combustion engine turned on by an electric engine. The study was developed without fuel and combustion. Regarding the software, it was possible to build an original intake manifold which provides to engine studied an increase in the volumetric efficiency of 6% at 3,500 rpm.
ASSUNTO(S)
bancada de fluxo coletor de admissão eficiência volumétrica flow bench intake manifold volumetric efficiency
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