SILPAKORN UNIVERSITY SCIENCE AND TECHNOLOGY JOURNAL, Vol 9, No 1 (2015)

Effects of Intake Blades on Diesel Engine Performance

Jarut Kunanoppadol




Abstract


The idea of using an intake blade is to increase turbulence in the intake manifold which, in turn, increases the higher mixing capability between fuel and air. The aim of research was to investigate the effects
of the intake blade on performance of a diesel engine. The computer simulations were performed to analyze the effects of the intake blade’s angles and shapes on flow characteristics including velocity, turbulent
viscosity, and pressure drop. From the simulations, the blade angle of 60 degree was the best in the term of the turbulent viscosity. The four blades shape was selected to test with a commercial diesel engine. The
experimental results showed that using the intake blades with the tested diesel engine did not affect the engine performance included brake power, brake torque, and specific fuel consumption at the significance
level of 0.05.

Key Words: Diesel engine; Intake blade; Performance; Turbulent flow

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