Experimental investigation of B20 combustion and emissions under various intake conditions for low-temperature combustion

Kim, J.; Jang, Ji-Young; Lee, K.; Lee, Y.; Lee, S.; Oh, Sung‐Yong

doi:10.1007/s12239-014-0020-z

Cited by 9 publications

(3 citation statements)

References 5 publications

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“…Further, the recent studies on biodiesel fuel combustion have revealed that using the oxygenated biofuels achieved relatively stable combustion. Lee et al 21 studied the emissions and combustion characteristics of B20 in a diesel engine at various oxygen concentration levels and intake pressures. The results indicated that at B20 operation under high oxygen intake, the emission levels and combustion characteristics were similar to the conventional diesel.…”

Section: Introductionmentioning

confidence: 99%

Simulation investigation of the effect of various exhaust gas recirculation temperatures and amounts on the exergy terms in a direct injection diesel engine fueled by diesel/biodiesel

Jafarmadar

Niaki

2021

Env Prog and Sustain Energy

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Recently, applying biodiesel as an alternative fuel to improve the combustion stability in combination with implementing exhaust gas recirculation (EGR) to bring in-cylinder temperature under control has come under focus. Exergy analysis deals with the energy lost because of the irreversibilities and heat transfer across the combustion chamber. The present study investigates the effect of the various EGR amounts and temperatures on diesel/biodiesel combustion in a turbocharged direct injection diesel engine from the exergy analysis standpoint. The employed biodiesel percentages are considered at two levels, 0 and 20% (i.e., B0 and B20). The rates of EGR amount are 0, 5, 10, 13, and 20%, which are inducted into the combustion chamber at various temperatures of 370, 395, 575, 735, and 825 K. The results revealed that the higher EGR implementation at higher temperature had reduced the accumulative (acc) work and fuel burn exergies as well as irreversibility. In contrast, the total fuel and acc heat loss exergies are increased. The maximum and minimum acc exergy losses are detected for B0-EGR20-835 K and B0-EGR5-370 K, respectively.

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Section: Introductionmentioning

confidence: 99%

Simulation investigation of the effect of various exhaust gas recirculation temperatures and amounts on the exergy terms in a direct injection diesel engine fueled by diesel/biodiesel

Jafarmadar

Niaki

2021

Env Prog and Sustain Energy

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“…Cool flame reaction behavior was deep analyzed on the basis of in-cylinder spectroscopic measurements. Kim et al [18], investigate the performance and emissions of 20% biodiesel blended diesel fuel (B20) at various intake pressures and oxygen concentration levels to characterize the fuel for LTC application. Karikalan and Chandrasekaran [19] investigated the performance of Jatropha-Mineral Turpentine (JMT) and Jatropha-Wood Turpentine (JWT) blends were found close to diesel.…”

Section: Introductionmentioning

confidence: 99%

Combustion Characteristics of Diesel Combustion System Using Blended Diesel: An Experimental Study

Agrawal¹

2017

AJMA

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This paper deals with the experimental study of combustion characteristic of diesel blended with n-pentane and diethyl ether (DEE). The ignition delay Characteristic of diesel combustion system fuelled with n-Pentane and DEE blends with pure diesel is investigated. The experiment conducted at various pressures and temperatures of air inside the combustion chamber. An experimental set up was designed based on an optical method for the measurement of ignition delay. The result reveals that ignition delay of diesel fuel spray decreases with increases in the temperature and pressure of hot air. Results also show that the effect of methyl group being more dominant at low ignition temperatures whereas the alkyl groups are more effective at higher temperature. The temperature and pressure of hot air inside the combustion chamber are the main factors for ignition delay. Ignition delay of 10% and 20%, n-pentane blends is higher than pure diesel at low temperature while at high temperatures it is nearly equal to the pure diesel. However 30% and 40% n-pentane blends increased the ignition delay. Ignition delay of 10%, 20%, 30% and 40% blends of DEE is lower than pure diesel. DEE reduces the ignition delay of diesel fuel effectively at lower temperatures.

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“…[1][2][3] The development of electronic control injection technologies makes precise injection control of the injection timing and the injection quantity possible. In addition, various clean combustion strategies, such as homogeneous charge compression ignition (HCCI), low-temperature combustion (LTC), 7,8 multiple injection [9][10][11][12][13] and narrowangle direct injection (NADI TM ), 14,15 have been actively introduced in order to reduce the pollutant emissions from diesel engines. In particular, multiple injections can reduce the concentration levels of unburned hydrocarbons (HCs), carbon monoxide (CO) and particulate matter compared with a single injection, 16,17 because each spray pulse of a multiple injection changes the spatial distribution of the fuel in the cylinder by momentum flux.…”

Section: Introductionmentioning

confidence: 99%

Influence of the fuel spray angle and the injection strategy on the emissions reduction characteristics in a diesel engine

Kim

Park

Lee

2014

Proceedings of the Institution of Mechanical Engineers, Part D:

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This study describes the effects of the fuel injection angle and the multiple-injection strategies on the combustion, the emissions and the performance characteristics in a common-rail diesel engine. To conduct this investigation, a single-cylinder diesel engine with four valves was used, and various injection strategies with different parameters such as the spray angle, the timing and a single injection or multiple injections were applied. The combustion pressure, the heat release rate and the emissions were measured by a combustion and exhaust emissions analyser system. An injection spray angle of 156° resulted in higher nitrogen oxide emissions than an injection spray angle of 60° did, as the time between the first injection and the second injection increased. Also multiple injections resulted in lower levels of soot and hydrocarbon emissions than a single injection did. A multiple-injection strategy with a dwell time of 20–40° crank angle before top dead centre and the first injection at 60° crank angle before top dead centre or 50° crank angle before top dead centre improved the engine power and lowered the fuel consumption compared with the results for a single injection.

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Experimental investigation of B20 combustion and emissions under various intake conditions for low-temperature combustion

Cited by 9 publications

References 5 publications

Simulation investigation of the effect of various exhaust gas recirculation temperatures and amounts on the exergy terms in a direct injection diesel engine fueled by diesel/biodiesel

Simulation investigation of the effect of various exhaust gas recirculation temperatures and amounts on the exergy terms in a direct injection diesel engine fueled by diesel/biodiesel

Combustion Characteristics of Diesel Combustion System Using Blended Diesel: An Experimental Study

Influence of the fuel spray angle and the injection strategy on the emissions reduction characteristics in a diesel engine

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