Effect of fuel injection pressure and injection timing of Karanja biodiesel blends on fuel spray, engine performance, emissions and combustion characteristics

Agarwal, Avinash Kumar; Dhar, Atul; Gupta, Jai Gopal; Kim, Woong Il; Choi, Kibong; Lee, Chang Sik; Park, Sungwook

doi:10.1016/j.enconman.2014.12.004

Cited by 289 publications

(122 citation statements)

References 29 publications

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“…Figure 6 records the biodiesel production or synthesis from waste cooking oil, which were 73.7 ± 0.7%, 83.9 ± 0.6%, 87.8 ± 0.4%, 86.9 ± 0.8%, and 84.0 ± 0.5% for temperatures of 45, 55, 65, 75, and 85 °C , respectively. The biodiesel production increased with an increased temperature from 45 to 65 °C , and then decreased with a further increase of temperature to 85 °C ; this is also confirmed by other studies [18,36,[43][44][45][46][47][48][49]. These optimized conditions (weight of catalyst, reaction time and molar ratio were established according to a preeminent temperature 65 °C [50,51].…”

Section: Effects Of Microwave Temperaturesupporting

confidence: 67%

“…Whereas the increase in response (reaction) time at 120 to 165 min triggered a substantial rise of biodiesel production, this subsequently declined with a further increase to 210 min. The outcomes to this end may perhaps be attributed to the imperfect transesterification response amid methanol and oil with a slighter response; despite the fact that, the lengthier reaction had a longer reaction temperature, developing into more glycerin solubility [7,[41][42][43][44][45]. …”

Section: Effect Of Reaction Timementioning

confidence: 99%

“…A catalyst amount of 5 wt % was used during the experiment in this study, a response period of 165 min, a proportion of 9 methanol-to-oil molar share, as well as diverse microwave temperature (45,55,65,75, and 85 • C) to examine the influence of the microwave heating system temperature on biodiesel production. Figure 6 records the biodiesel production or synthesis from waste cooking oil, which were 73.7 ± 0.7%, 83.9 ± 0.6%, 87.8 ± 0.4%, 86.9 ± 0.8%, and 84.0 ± 0.5% for temperatures of 45, 55, 65, 75, and 85 • C, respectively.…”

Section: Effects Of Microwave Temperaturementioning

confidence: 99%

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Optimization of Biodiesel Production from Waste Cooking Oil Using Waste Eggshell as a Base Catalyst under a Microwave Heating System

et al. 2018

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This paper intends to explore the most affordable and environmentally friendly method for the synthesis of biodiesel. Substitute fuel is presently a significant topic all over the world, attributable to the efforts of reducing global warming, which is the result arising from the combustion of petroleum or petrol diesel fuel. Due to its advantages of being renewable and environmentally friendly, biodiesel production has the potential to become the major substitute of petrol diesel fuel. Biodiesel is non-toxic, biodegradable, is produced from renewable sources, and contributes a small amount of greenhouse gas (e.g., CO 2 and SO 2 ) emissions to the atmosphere. Research has established that one of the key obstacles to the commercialization of biodiesel is the high price of biodiesel production due to the shortage of suitable raw materials. However, waste-cooking-oil (WCO) is one of the most cost-effective sources of biodiesel synthesis, and can practically minimize the raw material cost. The research was carried out to produce biodiesel from waste cooking oil in order to reduce the cost, waste, and pollution associated with biodiesel production. The application of a microwave heating system towards enhancing the production of biodiesel from waste cooking oil has been given little consideration in the preceding research, particularly with the application of eggshell as a heterogeneous catalyst. However, the tentative results in this study show significant performance in terms of biodiesel production, as follows: (1) the increasing of the reaction time from 120 to 165 min considerably increased the biodiesel production, which declined with a further rise to 210 min; (2) the results of this study reveal that a methanol-to-oil molar ratio of nine is appropriate and can be used for the best production of biodiesel; (3) the production of biodiesel in this study demonstrated a significant increase in response to the further increasing of power; (4) a 120 min response time, a ratio of 9:1 methanol-to-oil molar fraction, 65 • C temperature; (5) and 5 wt % catalyst were found to be the most ideal reaction conditions during this study. In summary, recycled eggshell was re-used as a suitable catalyst to produce new biodiesel from waste cooking oil, applicable to diesel engines.

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Section: Effects Of Microwave Temperaturesupporting

confidence: 67%

Section: Effect Of Reaction Timementioning

confidence: 99%

Section: Effects Of Microwave Temperaturementioning

confidence: 99%

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Optimization of Biodiesel Production from Waste Cooking Oil Using Waste Eggshell as a Base Catalyst under a Microwave Heating System

et al. 2018

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“…Alternative fuels in general can be divided them into three categories: Oxygenated fuels such as alcohol, ether, ester (mainly including methanol, ethanol, dimethyl ether, micro algae oil as well as the production of biodiesel from vegetable oil); Synthetic oil, (produced by coal, natural gas or biomass liquid fuel, such as waste plastics oil); Gas fuel (natural gas, liquefied petroleum gas, hydrogen gas, coal gas, methane, etc.) [1][2][3][4][5].…”

Section: Introductionmentioning

confidence: 99%

Effect of Injection Timing on Performance and Emissions of DI-diesel Engine Fueled with Isopropanol

Liu¹,

Xu²,

Jia³

et al. 2015

Proceedings of the 2015 International Conference on Electrical, Electronics and Mechatronics

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Abstract-Experimental study was conducted to investigate the influence of the injection timing on the performance and exhaust emissions of an electronic control high-pressure common rail turbocharged direct injection diesel engine fueled with isopropanol. Diesel fuels with different amounts (0%, 5%, 10%, 15% and 20% by volume) of isopropanol were used. The results show that the isopropanol addition can significantly improve soot and CO emissions. Under the same injection timing, with the increase of isopropanol blending ratio, combustion duration shortened, brake specific fuel consumption increased, the peak of in-cylinder pressure and heat release rate of pilot-injection combustion decreased, the peak of in-cylinder pressure and heat release rate of main-injection combustion increased, THC and NOx emissions increased. With the injection timing retarded, the center of heat release rate of pilot and main injection combustion delayed, the peak of in-cylinder pressure and heat release rate of former ascended, the latter descended. Brake specific fuel consumption, CO emission, THC emission and soot emission reduced, NOx emissions increased.

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“…The profile of injection rate and Sauter mean diameter of the fuel droplets are influenced by the injection pressure. The higher fuel injection pressure typically improves combustion and the thermal efficiency of the tested fuels and reduces emissions [8].…”

Section: Introductionmentioning

confidence: 99%

Experimental study on injection characteristics of diesel and biodiesel fuel blends with common rail injection system

Slavinskas

Labeckas

Mickevičius

2018

Engineering for Rural Development

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Abstract. The limited fossil fuel reserves and the ecological aspects encourage the scientists to conduct the research on a new alternative renewable energy resource. In the European Union diesel -powered transport machines produce approximately 21 % of the total emissions causing the greenhouse effect and this tendency is in a constant progress. The transport and agriculture sectors are among the largest consumers of the mineral fuels contributing to the environment pollution. The EU directives promote the production and consumption of biofuels, therefore, the member-states have committed to the promotion of biofuels and other renewable fuels instead of using fossil-origin gasoline or diesel fuel. The article presents the experimental test results of the fuel injection processes of diesel and biodiesel fuel blends, when using high-pressure common rail injection system. The injection characteristics were determined using the injection rate measuring instrumentation. The aim of the study was to get insight in the changing behaviour of the injection rate, amount of the fuel injected per cycle, actual injection delay and the duration of the process over the whole variation range of both the injection pressure and the energizing time. The test results showed that the maximum injection rate of diesel -biodiesel fuel blends was lower than that of a neat diesel fuel case. It was observed that density and viscosity of the fuel have a significant effect on the form of injection characteristics. The injection process has significant influence on the combustible mixture formation inside the cylinder of a diesel engine, auto-ignition, combustion, and exhaust emissions.

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Effect of fuel injection pressure and injection timing of Karanja biodiesel blends on fuel spray, engine performance, emissions and combustion characteristics

Cited by 289 publications

References 29 publications

Optimization of Biodiesel Production from Waste Cooking Oil Using Waste Eggshell as a Base Catalyst under a Microwave Heating System

Optimization of Biodiesel Production from Waste Cooking Oil Using Waste Eggshell as a Base Catalyst under a Microwave Heating System

Effect of Injection Timing on Performance and Emissions of DI-diesel Engine Fueled with Isopropanol

Experimental study on injection characteristics of diesel and biodiesel fuel blends with common rail injection system

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