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http://dx.doi.org/10.15231/jksc.2017.22.1.001

Study on Combustion Characteristics of Single-Cylinder Diesel Engine by Double Injection  

Lee, Jong-Tae (Transportation Pollution Research Center, National Institute of Environmental Research)
Shin, Dalho (Department of Mechanical Engineering, Graduate School of Chonnam National University)
Kim, Hyung Jun (Transportation Pollution Research Center, National Institute of Environmental Research)
Yun, Chang-Wan (Transportation Pollution Research Center, National Institute of Environmental Research)
Kim, Jeong-Soo (Transportation Pollution Research Center, National Institute of Environmental Research)
Park, Suhan (School of Mechanical Engineering, Chonnam National University)
Publication Information
Journal of the Korean Society of Combustion / v.22, no.1, 2017 , pp. 1-7 More about this Journal
Abstract
This paper presents an experimental study on the effect of double injection strategies on combustion characteristics in a single-cylinder diesel engine. These studies are applied to the double injection strategies, such as $2^{nd}$ injection timing variations with fixed injection interval (8 degree) and variations of injection pressures with fixed injection timing and intervals. The injection quantity was 7 + 7 mg for double injections, and 14 mg for single injection. When the injection pressure was increased, the ignition delay was shortened, and the ISFC (indicated specific fuel consumption) was increased due to the fast termination of combustion by the shortened energizing duration. In addition, the retardation of injection timings toward TDC (top dead center) caused the reduction of ignition delay and the decrease of ISFC with the decrease of FMEP (friction mean effective pressure).
Keywords
Double injection; Brake Specific Fuel Consumption (BSFC); Rate of Heat Release (ROHR); Ignition delay;
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Times Cited By KSCI : 4  (Citation Analysis)
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