3th WCSET-2014 at Nepal
Special Session at Ho Chi Minh City University of Technology, Vietnam:
Title:
Emission Reduction of Small Direct Injection Diesel
Engine using Improvement of Combustion Chamber
Authors:
Huynh Thanh Cong, Phan The Anh
Abstract: To
reduce the exhaust emission of a small direct injection
diesel engine, the structure of combustion chamber is
studied. Five modified combustion chambers are proposed
to evaluate at 2400 rpm (maximum power) and full load
conditions. The simulation results showed that the best
combustion chamber could help to decrease NOx, CO and
maintain brake power and specific fuel consumption. The
3D modeling was based on a commercial Computational
Fluid Dynamics (CFD) code AVL-Fire from intake valve
closed (IVC) to the exhaust valve opening (EVO) in two
operation points. Operating at 2400 rpm and full load
conditions, NOx can be reduced about 25,98%. CO
increases a litle 5% and Soot is increased about 20, 3%.
Keywords: Small Direct
Injection Diesel Engine, Emission reduction, Combustion
chamber
Pages:
738-745