Optical Investigation of Premixed Low-Temperature Combustion of Lighter Fuel Blends in Compression Ignition Engines

2011 ◽  
Author(s):  
Felice Corcione ◽  
Gerardo Valentino ◽  
Cinzia Tornatore ◽  
Simona Merola ◽  
Luca Marchitto
Keyword(s):  
Low Temperature ◽  
Low Temperature Combustion ◽  
Optical Investigation ◽  
Compression Ignition ◽  
Fuel Blends ◽  
Compression Ignition Engines ◽  
Temperature Combustion ◽  
Premixed Low Temperature Combustion

An Experimental Investigation of Low-Octane Gasoline in Diesel Engines

2011 ◽  
Vol 133 (9) ◽  
Author(s):  
Stephen Ciatti ◽  
Swami Nathan Subramanian
Keyword(s):  
Low Temperature ◽  
Fuel Efficiency ◽  
Nox Emissions ◽  
Low Temperature Combustion ◽  
Compression Ignition ◽  
Oxides Of Nitrogen ◽  
Conventional Combustion ◽  
Compression Ignition Engines ◽  
Temperature Combustion ◽  
Power Densities

Conventional combustion techniques struggle to meet the current emissions norms. In particular, oxides of nitrogen (NOx) and particulate matter (PM) emissions have limited the utilization of diesel fuel in compression ignition engines. Advance combustion concepts have proved the potential to combine fuel efficiency and improved emission performance. Low-temperature combustion (LTC) offers reduced NOx and PM emissions with comparable modern diesel engine efficiencies. The ability of premixed, low-temperature compression ignition to deliver low PM and NOx emissions is dependent on achieving optimal combustion phasing. Diesel operated LTC is limited by early knocking combustion, whereas conventional gasoline operated LTC is limited by misfiring. So the concept of using an unconventional fuel with the properties in between those two boundary fuels has been experimented in this paper. Low-octane (84 RON) gasoline has shown comparable diesel efficiencies with the lowest NOx emissions at reasonable high power densities (NOx emission was 1 g/kW h at 12 bar BMEP and 2750 rpm).

An Experimental Investigation of Low Octane Gasoline in Diesel Engines

2010 ◽  
Author(s):  
Stephen Ciatti ◽  
Swami Nathan Subramanian
Keyword(s):  
Low Temperature ◽  
Fuel Efficiency ◽  
Nox Emissions ◽  
Low Temperature Combustion ◽  
Compression Ignition ◽  
Oxides Of Nitrogen ◽  
Conventional Combustion ◽  
Compression Ignition Engines ◽  
Temperature Combustion ◽  
Power Densities

Conventional combustion techniques struggle to meet the current emissions norms. In particular, oxides of nitrogen (NOx) and particulate matter (PM) emissions have limited the utilization of diesel fuel in compression ignition engines. Advance combustion concepts have proved the potential to combine fuel efficiency and improved emissions performance. Low Temperature Combustion (LTC) offers reduced NOx and PM emissions with comparable modern diesel engine efficiencies. The ability of premixed, low-temperature compression ignition to deliver low PM and NOx emissions is dependent on achieving optimal combustion phasing. Diesel operated LTC is limited by early knocking combustion whereas conventional gasoline operated LTC is limited by misfiring. So the concept of using an unconventional fuel with the properties in between those two boundary fuels has been experimented in this paper. Low octane (84 RON) gasoline has shown comparable diesel efficiencies with lowest NOx emissions at reasonable high power densities (NOx emission were 1 g/kW-hr at 12 bar BMEP and 2750 rpm).

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