A Technical Review of HCCI Combustion in Diesel Engine

The Homogeneous charge compression ignition (HCCI) combustion is an alternative to current engine combustion systems and research in HCCI is being carried out to use it as a method to reduce emissions. HCCI has the potential nearly to eliminate engine-out NOx emissions while producing efficiencies as in diesel engine, when a pre mixture of gas-phase fuel and air is burned spontaneously and entirely by an auto ignition process. Homogeneous Charge Compression Ignition (HCCI) engines promise high thermal efficiency combined with low levels of nitric oxide and particulate matter emissions. The purpose of this study is to summarise the alternative fuel effect for the HCCI engine combustion process.