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http://dx.doi.org/10.5762/KAIS.2014.15.6.3383

Effects of the Combustion and Emission Characteristics in a CRDI Engine Biodiesel Blended Fuel with and EGR rate  

Yoon, Sam-Ki (GM korea Company)
Choi, Nag-Jung (Division of Mechanical Design Engineering, Chonbuk National University)
Publication Information
Journal of the Korea Academia-Industrial cooperation Society / v.15, no.6, 2014 , pp. 3383-3388 More about this Journal
Abstract
An experimental study was performed to compare the characteristics of the combustion pressure and exhaust emissions in the case of using pure diesel when the EGR rate was changed in a CRDI 4-cylinder diesel engine with those using biodiesel blended and pure diesel fuel. In this study, the EGR rate variation were conducted at an engine speed of 2000rpm with fuel with a biodiesel blended rate of 20%. The combustion pressure of the biodiesel blended rate 20% and pure diesel fuels decreased with increasing EGR rate. The IMEP of biodiesel was higher than that of ULSD (Ultra low sulfur diesel). The emission results showed that the NOx emission of biodiesel blended fuel with increasing EGR rate was higher than that of ULSD. In addition, the NOx emission of biodiesel blended and diesel fuel decreased with increasing EGR rate. The CO and soot, $CO_2$ emissions increased with increasing EGR rate, and the CO and soot emissions from the biodiesel blended fuel were lower than that of ULSD but the $CO_2$ emissions were higher.
Keywords
Bio-diesel blended fuel; Combustion pressure; EGR; Exhaust emission; Indicated mean effective pressure(IMEP);
Citations & Related Records
Times Cited By KSCI : 3  (Citation Analysis)
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