Emission characteristics of diesel engine operating on rapeseed methyl ester

Nwafor, O. M. I.

doi:10.1016/s0960-1481(03)00133-2

Cited by 149 publications

(56 citation statements)

References 2 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…The mixture RO20, RO50 and RO75 has smaller HC emissions relative to DF up to 48% (load 85% at 1850 rpm), 49% (load 90% at 1900 rpm) and 63% (load 90% at 1800 rpm) respectively. Similar values of HC emissions can be also found in the experiments conducted by Nwafor [31] who, by using mixtures of rapeseed oil and diesel, obtained a decrease of HC emissions of up to 60% and by Last et. al [32] who tested biodiesel from soybean oil in percentages of 10%, 20%, 30%, 50% and 100%, thus obtaining HC reductions between 28% and 75%.…”

Section: Interdisciplinary Research In Engineering: Steps Towards Bresupporting

confidence: 87%

Exhaust Emissions of a Medium Power Diesel Engine Operated with Biodiesel

Cordoș

Todoruț

Barabás

2013

AEF

View full text Add to dashboard Cite

Abstract. The purpose of this study was to identify from experimental researches the results regarding the nitrogen oxides (NO x ) emissions and hydrocarbon emissions (HC), emissions of a four-stroke, four cylinder, direct injection of a Romanian medium power diesel tractor engine at partial loads operating on diesel fuel (DF), rapeseed methyl ester (RME), degummed and filtered (5 µm) pure rapeseed oil (RO100) and its blends with diesel fuel: 20% pure rapeseed oil-80% diesel fuel (RO20), 50% pure rapeseed oil-50% diesel fuel (RO50), 75% pure rapeseed oil-25% diesel fuel (RO75) compared to diesel fuel. The main properties of the tested fuels (density, kinematic viscosity, oxidation stability, acid value, peroxide number, coke content, water content and cetane number) have been determined. The value of NO x emissions for the experimented biofuels is smaller up to 53% (for RO100) and increases up to 37% (for RO75) for different engine loads as compared to the diesel fuel. The HC emission shows a decrease for all biofuels used in the experiment ranging between 4% (for RO100) and 63% (RO75) at different loads relative to the diesel fuel.

show abstract

Section: Interdisciplinary Research In Engineering: Steps Towards Bresupporting

confidence: 87%

Exhaust Emissions of a Medium Power Diesel Engine Operated with Biodiesel

Cordoș

Todoruț

Barabás

2013

AEF

View full text Add to dashboard Cite

show abstract

“…Statistical analysis of the coefficients, illustrated in SM 3, showed that two coefficients had sufficient significance to be taken into account. These coefficients were b 4 and b 5 , respectively reflecting the effects of solvent and catalyst. Other factors, such as temperature, stirring speed, and reaction time, were low significance.…”

Section: Factor Screeningmentioning

confidence: 99%

“…The use of fossil energy also has adverse effects on the environment, including global warming and climate change [1] [2] [5]. These concerns have drawn the attention of researchers to the potential of biofuels [2] [6] [7] [8].…”

Section: Introductionmentioning

confidence: 99%

Optimization of Rubber Seed Oil Transesterification to Biodiesel Using Experimental Designs and Artificial Neural Networks

Kouassi¹,

Abolle²,

Yao³

et al. 2018

GSC

View full text Add to dashboard Cite

The development of biofuels is driven both by concern about the greenhouse effect and by interest in the opportunities for exploitation of biomass of agricultural origin. In order to improve the yield and quality of biodiesel through modeling and optimization, several studies are in progress. In this paper, biodiesel produced from rubber seed oil in the homogeneous transesterification is studied using a Plackett-Burman experimental design, a full factorial design, a central composite design and an Artificial Neural Network (ANN) coupled with a Genetic Algorithm (GA).Variables such as temperature, stirring speed, reaction time, type of alcohol, and type of catalyst are studied to obtain the best specific gravity and kinematic viscosity. Type of alcohol and type of catalyst have the greatest effect on the two responses, with ethanol (alcohol) and sulphuric acid (catalyst) producing the best results. The specific gravity and kinematic viscosity changes recorded during the transesterification process followed the first and second order polynomial models, respectively. The ANN coupled with GA was used to optimize the two responses simultaneously. Global optimal values of specific gravity (0.883) and kinematic viscosity (6.76 cSt) were recorded when a temperature of 90˚C, a stirring speed of 305 rpm, and a treatment time of 141 min were imposed.

show abstract

“…The main reason for this is that the percentage increase in fuel required to operate the engine is less than the percent increase in brake power due to relatively less portion of the heat losses at higher loads [5,6]. The figure shows that the BSFC for B10 and B30 fuels is marginally same as that of Diesel fuel, at all loading conditions.…”

Section: Brake Specific Fuel Consumptionmentioning

confidence: 99%

“…From the graph it can be seen that the B20 and B30 blends shows the steady increase in peak pressure with load, whereas the B10 blend shows a significant dip in peak pressure values compared to Diesel. This might be due to increase in viscosity of B10 blend compared to Diesel resulting in improper atomization of the blend inside the engine cylinder [5,6]. The maximum pressure was shown by B20 blend at 67.9 bars at maximum load of 20 N-m.…”

Section: Combustion Analysismentioning

confidence: 99%

A Study on Performance, Combustion and Emission Characteristics of Compression Ignition Engine Using Fish Oil Biodiesel Blends

Ramesha

Thimmannachar

Simhasan

et al. 2012

J. Inst. Eng. India Ser. C

View full text Add to dashboard Cite

Bio-fuel is a clean burning fuel made from natural renewable energy resource; it operates in C. I. engine similar to the petroleum diesel. The rising cost of diesel and the danger caused to the environment has led to an intensive and desperate search for alternative fuels. Among them, animal fats like the fish oil have proven to be a promising substitute to diesel. In this experimental study, A computerized 4-stroke, single cylinder, constant speed, direct injection diesel engine was operated on fish oil-biodiesel of different blends. Three different blends of 10, 20, and 30 % by volume were used for this study. Various engine performance, combustion and emission parameters such as Brake Thermal Efficiency, Brake Specific Fuel Consumption, Heat Release Rate, Peak Pressure, Exhaust Gas Temperature, etc. were recorded from the acquired data. The data was recorded with the help of an engine analysis software. The recorded parameters were studied for varying loads and their corresponding graphs have been plotted for comparison purposes. Petroleum Diesel has been used as the reference. From the properties and engine test results it has been established that fish oil biodiesel is a better replacement for diesel without any engine modification.

show abstract

Emission characteristics of diesel engine operating on rapeseed methyl ester

Cited by 149 publications

References 2 publications

Exhaust Emissions of a Medium Power Diesel Engine Operated with Biodiesel

Exhaust Emissions of a Medium Power Diesel Engine Operated with Biodiesel

Optimization of Rubber Seed Oil Transesterification to Biodiesel Using Experimental Designs and Artificial Neural Networks

A Study on Performance, Combustion and Emission Characteristics of Compression Ignition Engine Using Fish Oil Biodiesel Blends

Contact Info

Product

Resources

About