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

This paper presents a study on improvement of performance characteristics of small diesel direct injection engine with power of 16.5HP using the re-design of intake manifold. With help of simulation tools like AVL BOOST, 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 engine. In experiments, the important performance characteristics of engine (like volumetric efficiency, brake power, brake torque, fuel consumption, NOx, Soot, and CO) were analyzed. Moreover, the flow pattern of intake air was experimentally observed using a transparent cylinder.