Homogeneous Charge Compression Ignition Engines

Swapnil P. Awate, Shreya B. Bhangare, Dhairya S. Deore

Abstract


Reducing exhaust emissions and increasing the fuel economy of internal combustion engines are of global importance. To meet the demand of economy, energy conservation, less environmental harmful exhaust emissions, especially carcinogenic NOx and responsibility for a greenhouse effect CO2 and higher thermal efficiency present generation engines must be characterized by low fuel consumption, high thermal efficiency, reliability, low price and low cost of usage. Homogeneous charge compression ignition (HCCI) combustion is an alternative to current engine combustion systems; it has the potential nearly to eliminate engine-out NOx emissions while producing diesel- like engine efficiencies, when a pre mixture of gas-phase fuel and air is burned spontaneously and entirely by an auto ignition process. However, due to the absence of an immediate means of stable operation over a wide range of conditions and transient control have proven challenging and have so far prevented commercialization. HCCI engines can operate on gasoline, diesel fuel and most alternative fuels. HCCI combustion is achieved by controlling the temperature, pressure and composition of the fuel and air mixture so that it can spontaneously ignite. This control system is fundamentally more challenging than using a spark plug or fuel injector to determine ignition timing as used in SI and DI engines respectively.  


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References


Krzysztof Motyl, Tadeusz J. Rychter: “HCCI engine– a preliminary analysis”, Warsaw University of Technology, ITC, Nowiejska.

Shigeru Onishi, Souk Hong Jo, Katsuji Shoda, Pan Do Jo, Satoshi Kato: ”Active Thermo - Atmosphere Combustion (ATAC)– A New Combustion Process for Internal Combustion Engines”, SAE 790501.

Yang JL, Culp T, Kenny T. , “Development of a gasoline engine system using HCCI technology - the concept and the test results.” SAE paper 2002 - 01 - 2832; 2002.

Swapnil P. Awate, “Efficiency Improvement and Reduction of Emissions through Homogeneous charge Compression Ignition in Automotive Engines” First Annual Progress Seminar Report, Department of Mechanical Engineering, IIT Bombay, 2013.

A Report to the U.S Congress ''Homogeneous Charge Compression Ignition' (HCCI) Technology”, April 2001.

Ryan III TW, Callahan TJ. Homogeneous charge compression ignition of diesel fuel. SAE paper 961160; 1996

Potter M, Durrett R, Motors G. Design for compression ignition high - efficiency clean combustion engines. 12th Annual diesel engine emissions reduction (DEER) conference; 2006.

Onishi S, Jo SH, Shoda K, Jo PD, Kato S. Active thermo-atmosphere combustion (ATAC) –a new combustion process for internal combustion engines. SAE paper 790501; 1979

Najt PM, Foster DE. Compression ignited homogeneous charge combustion. SAE paper 830264; 1983.

Thring RH. Homogeneous–charge compression ignition (HCCI) engines. SAE paper 892068; 1989.

Christensen M, Hultqvist A, Johansson B. Demonstrating the multi fuel capability of a homogeneous charge compression ignition engine with variable compression ratio. SAE paper 1999 - 01 - 3679; 1999.

Law D, Kemp D, Allen J, Kirkpatrick G, Copland T. Controlled combustion in an IC engine with a fully variable valve train. SAE paper 2000-01-0251; 2000.




 

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