Performance Enhancement of CI Engine by using Homogeneous Charge Compression Ignition System

Author(s):

Bhavsar Akash Atulkumar , iiet dharmaj; Patel Parth Hasmukhbhai, IIET , Dharmaj; Patel Vrund Prakashchandra, IIET , Dharmaj

Keywords:

HCCI, Emissions, NOx, Performance, Fuel, Diesel, Bio-Diesel

Abstract:

Nowadays IC engines are widely used in diverse applications such as Automobile, Ships, Power generation etc. Emissions generated from these engines have major influence on environment pollution. So alternative mode has been investigated for reduction of pollution. A new mode of combustion has been developed in order to reduce emissions. Homogeneous Charge Compression Ignition engines have no spark plug or fuel injector as in conventional SI and CI engine. In HCCI combustion, a homogeneous mixture of air and fuel is compressed until auto-ignition occurs near the end of the compression stroke. The technology can be implemented by modifying either SI or CI engines using any fuel or combination of fuels. HCCI technology uses homogeneous charge inside the combustion chamber and this is obtained by premixing the air and vaporised fuel outside the combustion chamber. Homogeneous charge is formed by early injection of fuel on to the hot surface of vaporiser. Because of the high compression ratio, Diesel engines are more robust and withstand high loads and the temperature of the combustion tends to be high. In the high temperature nitrogen reacts with the oxygen and form of NOx. The difference is that HCCI has significantly low compression ratio. That lower compression ratio contributes to a lower combustion temperature and reduces nitrogen oxide emission.

Other Details:

Manuscript Id	:	IJSTEV5I4030
Published in	:	Volume : 5, Issue : 4
Publication Date	:	01/11/2018
Page(s)	:	83-86

Download Article