Combustion and emission characteristics of a direct injection compression ignition engine using rapeseed oil based micro-emulsions

Qi, Donghui; Bae, Choongsik; Feng, Yongming; Jia, Chaojie; Yao-zhang, Bian

doi:10.1016/j.fuel.2013.01.046

Cited by 69 publications

(40 citation statements)

References 33 publications

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“…As shown in Figure 5, in all cases, the concentration of the total PN decreases with an increase in engine operating loads. The reason behind it is the trend of the decrease of fuel burned with the rise in engine load that is not reported here, which is consistent with previously stated studies [14,[66][67][68]. In addition, the lower particle concentration obtained with hydrous ethanol and anhydrous ethanol blends in comparison to gasoline due to the higher hydrogen to carbon ratio, higher volatility, higher percentage of oxygen content in the fuel, and no sulfur and aromatics in ethanol also favored the repression of PM formation inside the cylinder [69].…”

Section: Pm Emission Characteristicssupporting

confidence: 93%

Particulate Matter and Gaseous Emission of Hydrous Ethanol Gasoline Blends Fuel in a Port Injection Gasoline Engine

et al. 2017

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Abstract:The industrialization that increases day by day needs more and more power/fuel sources that are commonly available, abundant, renewable, and environmentally friendly. Recently, nearly all of the cities in China (PRC) have been influenced by haze. However, the pollutants from automobiles have always been seriously considered to be the main contamination causes of the haze and that influence human health. This study concerns the impact of hydrous ethanol on in-cylinder pressure, particulate matter (PM), and gaseous emissions (oxides of nitrogen (NO x ) and unburned hydrocarbon (HC)) from a port fuel injection (PFI) gasoline engine. Tests were conducted on a four-cylinder port injection gasoline engine at different engine loads at an engine speed of 2000 rev/min for commercial gasoline, hydrous ethanol-gasoline blends (10% and 20% hydrous ethanol by volume), and an anhydrous ethanol-gasoline blend (20% anhydrous ethanol by volume). The results show that the peak in-cylinder pressure with the use of gasoline was the highest compared with the hydrous ethanol and anhydrous ethanol blends. Compared with the anhydrous ethanol blend, the hydrous ethanol blends performed well at a high load condition, equivalent to a low load. In addition, the total particulate number (PN) declines with an increase in engine operating loads for all of the fuels tested. The outcome of this study is an important reduction in PM number, mass emissions, and mean diameters of particles as the use of hydrous ethanol blends increases, while the form of the particulate size distribution remains the same. Furthermore, the NO x emission is raised with a rise in engine load, and NO x and HC emissions are reduced with the use of hydrous ethanol and anhydrous ethanol blend as equated with pure gasoline. Moreover, the correlation between the total particle number against NO x and HC has been found; the number of particles increases when the NO x emission decreases, and the opposite trend is exhibited for the HC emission. Therefore, it can be concluded that hydrous ethanol blends look to be a good selection for PM, NO x , and HC reduction for gasoline engines.

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Section: Pm Emission Characteristicssupporting

confidence: 93%

Particulate Matter and Gaseous Emission of Hydrous Ethanol Gasoline Blends Fuel in a Port Injection Gasoline Engine

et al. 2017

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“…When the amounts of diesel fuel and DnBC injected in the combustion chamber were equal, the heat release of diesel fuel was higher than that of DnBC at all the test conditions. Hence, it is necessary to increase the DnBC amount to be injected into the combustion chamber to obtain the same power output of diesel fuel [10].…”

Section: Bsfcmentioning

confidence: 99%

“…These problems can be overcome by four methods: blending, microemulsion, transesterification, and pyrolysis [5,6,9]. Among these methods, microemulsion is the easiest to implement because of its least complex process and low cost of production [5,10,11].…”

Section: Introductionmentioning

confidence: 99%

“…In accordance with the chemical structure of diesel fuel and the system temperature, the solubility of vegetable oil in diesel fuel changes. Vegetable oil-diesel fuel blends can form wax formation and phase separation at lower system temperatures because of their straight and branched chain hydrocarbons, to prevent this situation, the microemulsion method is used effectively [10,27]. The presence of n-butanol in the blends inhibits the phase separation of the vegetable oil and diesel fuel mixtures and enhances fuel properties [28,29].…”

Section: Introductionmentioning

confidence: 99%

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Response surface methodology based optimization of diesel–n-butanol –cotton oil ternary blend ratios to improve engine performance and exhaust emission characteristics

Atmanlı¹,

Yüksel

İleri³

et al. 2015

Energy Conversion and Management

188

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“…in their work on multi injection direct injection diesel engine found that results of pure Rapeseed oil and blends of Rapeseed oil show strong reduction in NOx emissions this is because of low inside pressure and temperatures. There is higher amount of HC and CO emissions in case of Rapeseed oil and Rapeseed oil blends because of incomplete combustion [19]. D. H. Qi et.…”

Section: Biodiesel Performance Combustion and Emission Charactermentioning

confidence: 99%

Performance, Combustion and Emission Characteristics of Major Biodiesel Blends: A Review

Raju¹

2018

IJRASET

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The change in industrialisation and the increase in usage of automobile divesting the natural reserves of the fossil fuels which has driven the world towards alternative fuels especially renewable sources. One of the most prominent replaceable alternatives to the diesel is biodiesel. The research on usage of this biodiesel and modification of engines to suit these biodiesels started during the period of World War-II and the change in environmental conditions and decreasing reserves of the existing petroleum reserves formed as catalyst to accelerate this research to find better alternative biodiesel. Wide research is being done on many of the alternative biodiesels. This work mainly focuses on review of performance, emission and combustion characteristics of five most prominent biodiesels namely Jatropha, Cotton seed oil, Rubber seed oil, Mahua oil and Rapeseed oil. It is found that the brake specific fuel consumption is high for all the biodiesels because of less energy content in them in comparison with diesel. The variation of brake thermal efficiency depends on the percentage of fuel combustion and the percentage of blends used. From the review it was observed that. Even though the report of emission characteristics shows that the emissions of HC, smoke and CO by Rapeseed oil is little more comparative to that of other biodiesel blends but the performance of Rapeseed oil is superior and almost similar to that of diesel when compared with other biodiesel blends. Hence forth Rapeseed oil can be suggested as better alternative biodiesel to the diesel with certain modifications like Al 2 O 3 coatings to the piston which controls CO and HC emissions.

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Combustion and emission characteristics of a direct injection compression ignition engine using rapeseed oil based micro-emulsions

Cited by 69 publications

References 33 publications

Particulate Matter and Gaseous Emission of Hydrous Ethanol Gasoline Blends Fuel in a Port Injection Gasoline Engine

Particulate Matter and Gaseous Emission of Hydrous Ethanol Gasoline Blends Fuel in a Port Injection Gasoline Engine

Response surface methodology based optimization of diesel–n-butanol –cotton oil ternary blend ratios to improve engine performance and exhaust emission characteristics

Performance, Combustion and Emission Characteristics of Major Biodiesel Blends: A Review

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