Effects of Injection Strategies on Fluid Flow and Turbulence in Partially Premixed Combustion (PPC) in a Light Duty Engine

2015 ◽  
Author(s):  
Slavey Tanov ◽  
Zhenkan Wang ◽  
Hua Wang ◽  
Mattias Richter ◽  
Bengt Johansson
Keyword(s):  
Fluid Flow ◽  
Premixed Combustion ◽  
Light Duty ◽  
Partially Premixed Combustion ◽  
Partially Premixed ◽  
Injection Strategies

Partially premixed combustion based on different injection strategies in a light-duty diesel engine

Energy ◽  
2016 ◽  
Vol 96 ◽  
pp. 155-165 ◽  
Author(s):  
Liang Qiu ◽  
Xiaobei Cheng ◽  
Bei Liu ◽  
Shijun Dong ◽  
Zufeng Bao
Keyword(s):  
Diesel Engine ◽  
Premixed Combustion ◽  
Light Duty ◽  
Partially Premixed Combustion ◽  
Partially Premixed ◽  
Injection Strategies

Investigation on the Impact of Fuel Properties on Partially Premixed Combustion Characteristics in a Light Duty Diesel Engine

2012 ◽  
Author(s):  
Hadeel Solaka ◽  
Martin Tunér ◽  
Bengt Johansson
Keyword(s):  
Pressure Rise ◽  
Combustion Characteristics ◽  
Premixed Combustion ◽  
Unburned Hydrocarbon ◽  
Light Duty ◽  
Start Of Injection ◽  
Partially Premixed Combustion ◽  
Rise Rate ◽  
Partially Premixed ◽  
The Impact

The impact of fuel composition on the emission performance and combustion characteristics for partially premixed combustion (PPC) were examined for four fuels in the gasoline boiling range together with Swedish diesel MK1. Experiments were carried out at 8 bar IMEPg and 1500 rpm with 53±1% EGR and λ = 1.5. This relation gave inlet mole fractions of approximately 5% CO2 and 13% O2. The combustion phasing was adjusted by means of start of injection (SOI), for all fuels, over the range with stable combustion and acceptable pressure rise rate combined with maintained λ, EGR ratio, inlet pressure, and load. The operating range was limited by combustion instability for the high RON fuels, while MK1 and the low RON fuels could be operated over the whole MBT plateau. The largest difference in engine-out emissions between the fuels was the filtered smoke number (FSN), as the gasoline fuels produced a much lower FSN value than MK1. Higher RON value gave higher levels of carbon monoxide (CO) and unburned hydrocarbon (HC) for the gasoline fuels, while MK1 had the lowest levels of these emissions.

Sources of UHC Emissions from a Light-Duty Diesel Engine Operating in a Partially Premixed Combustion Regime

2009 ◽  
Vol 2 (1) ◽  
pp. 1265-1289 ◽  
Author(s):  
Isaac W. Ekoto ◽  
Will F. Colban ◽  
Paul C. Miles ◽  
Sungwook Park ◽  
David E. Foster ◽  
...  
Keyword(s):  
Diesel Engine ◽  
Combustion Regime ◽  
Premixed Combustion ◽  
Light Duty ◽  
Partially Premixed Combustion ◽  
Partially Premixed
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