Evaluation of Oxygenated Fuel by Direct Injection Diesel and Direct Fuel Injection Impingement Diffusion Combustion Diesel Engines

Akasaka, Yukio; Sasaki, Takanobu; Kato, Satoshi; Onishi, Shigeru

doi:10.4271/901566

Cited by 22 publications

(3 citation statements)

References 30 publications

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“…Other fuel properties related to the improvement include aromatic content, ignitability, oxygen content, viscosity and distillation temperature [1][2][3][4][5][6][7][8][9][10][11]. As for oxygen content or oxygenates, the addition of lower alcohols such as methanol and ethanol to diesel fuel was effective in reducing particulate emissions without sacrificing other emission components [12,13]. However, there were problems as the methanol has inherently poor solubility to diesel fuel and poor lubricity, and its lower ignitability made it impossible to use neat alcohols or high blending ratios in conventional diesel fuel without special measures to improve ignition.…”

Section: Introductionmentioning

confidence: 99%

Improvement Of Engine Performance Using Diethylene Glycol Dimethyl Ether (DGM) As Additive

Nabi¹,

Chowdhury²

2012

Jurnal Teknologi

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This research work investigates diesel combustion and exhaust emissions with additives addition to conventional diesel fuel in a four-stroke naturally aspirated direct injection (DI) diesel engine. The additives include DGM, and liquid cerium. The results show that with the addition of DGM to diesel fuel, brake specific energy consumption (BSEC) and all diesel emissions are significantly reduced. The volumetric blending ratios of additives to diesel fuel are 0, 25, 50, 75 and 100%. All emissions including smoke emissions decrease with the increase in oxygen content in the fuel and it is noted that smoke emission completely disappeared at an oxygen content of 36 wt–%. The reason for improvement in BSEC with the addition of additives to base diesel fuel is the improvement of degree of constant volume combustion, and the reduction of the cooling loss. Engine noise and odor concentrations are remarkably reduced with diesel-additive blends. Significant improvement in BSEC and exhaust emissions is not only found at medium load condition but also at high load condition. Key words: Diesel engine, DGM, emissions, BSEC, and cooling loss

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Section: Introductionmentioning

confidence: 99%

Improvement Of Engine Performance Using Diethylene Glycol Dimethyl Ether (DGM) As Additive

Nabi¹,

Chowdhury²

2012

Jurnal Teknologi

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“…The swirl chamber diesel engine has low NO x emission, low noise, and good high speed [2,3]. Proper spray impingement is believed to be an effective method to improve fuel/air mixture formation quality [4][5][6]. By using proper impingement, the vaporization rate of the spray can be increased, because the droplets can second be atomized and the spray can be diffused more widely.…”

Section: Introductionmentioning

confidence: 99%

Study of spray impingement and a squish combustion system for diesel engines

Wei

Long

Feng

et al. 2009

Proceedings of the Institution of Mechanical Engineers, Part D:

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In order to improve fuel/air mixture homogeneity and enhance air motion in the combustion chamber, a new spray impingement and squish combustion system (SISCS) is developed. The mixture formation and combustion processes in three different combustion chambers are simulated using the AVL-FIRE code. Simulation results show that the passage width has great influence on combustion and emissions. Compared with the original engine the NO and soot emissions can be reduced by using the combustion chamber of the case B.

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“…Akasaka et al [13] studied DMA and blends of DMA in a commercial DF-2. The fuels were tested in two single cylinder engines, an AVL 1357 cm 3 DI engine with a compression ratio of 16 and an OSKA-D 624 cm 3 DI engine with compression ratio of 18.…”

Section: Introductionmentioning

confidence: 99%