%0 Journal Article
%T EMISSION AND COMBUSTION CHARACTERISTICS OF DIFFERENT FUELS IN A HCCI ENGINE
%A S.Mohanamurugan
%A S. Sendilvelan
%J International Journal of Automotive and Mechanical Engineering
%D 2011
%I Universiti Malaysia Pahang
%X Different intake valve timings and fuel injection amounts were tested in order to identify their effects on exhaust emissions and combustion characteristics using variable valve actuation (VVA) in a Homogeneous Charge Compression Ignition (HCCI) engine. The HCCI engine is a promising concept for future automobile engines and stationary power plants. The two-stage ignition process in a HCCI engine creates advanced ignition and stratified combustion, which makes the ignition timing and combustion rate controllable. Meanwhile, the periphery of the fuel-rich zone leads to fierce burning, which results in slightly high NOx emissions. The experiments were conducted in a modified single cylinder water-cooled diesel engine. In this experiment we use diesel, bio-diesel (Jatropha) and gasoline as the fuel at different mixing ratios. HCCI has advantages in high thermal efficiency and low emissions and could possibly become a promising combustion method in internal combustion engines.
%K HCCI
%K two stage ignition
%K NOx
%K bio-diesel
%K variable valve actuation.
%U http://ijame.ump.edu.my/images/Volume_3/7%20Mohanamurugan%20and%20Sendilvelan.pdf