Performance Characteristics of Small Diesel DI Engine Using Different Geometry Intake Parts

摘要

This paper presents a study on the improvement of performance characteristics of small diesel direct injection engine with a power of 16.5HP using the re-design of the intake manifold. With the help of simulation tools like AVL BOOST and ANSYS FLUENT, the proposed measures for improvement of intake manifold were analyzed. The simulation results indicated that two best intake manifolds were recommended for experimental purposes. These manifolds were experimentally used to benchmark to the current intake manifold of the engine. In experiments, the important performance characteristics of the engine (like volumetric efficiency, brake power, brake torque, fuel consumption, NO_x, Soot, and CO) were analyzed. Moreover, the flow pattern of intake air was experimentally observed using a transparent cylinder.