Factors affecting biodiesel engine performance and exhaust emissions – Part II: Experimental study

Pullen, James; Saeed, Khizer

doi:10.1016/j.energy.2014.02.034

Cited by 47 publications

(20 citation statements)

References 28 publications

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“…Efforts of Researchers came out as the implementation of Biodiesels as a source to present engines to mitigate the ill effects of fossil fuels like diesel. Biodiesel is one such option which has properties close to diesel fuel [9][10][11][12][13][14][15][16][17][18][19]. This biodiesel, however, has the disadvantage of high viscosity and a lower heating value compared to neat Diesel [20].…”

Section: Introductionmentioning

confidence: 99%

Comparative performance and emission studies of the CI engine with Nodularia Spumigena microalgae biodiesel versus different vegetable oil derived biodiesel

Sharif

Rao

Jagadish³

2020

SN Appl. Sci.

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Biodiesel is a renewable diesel fuel that can be burned in any unmodified diesel engine at any concentration. Biodiesel from Nodularia Spumigena microalgae produced by transesterification is used in the present study. Methyl esters of algae have been prepared after successful extraction of biomass in an open pond cultivation system. Biodiesel was blended with diesel fuel with the volumetric ratios of 10% (A10) and 20% (A20). The experiments were conducted on a constant speed (1500 rpm), 4-stroke diesel engine fitted with diesel particulate filter (DPF) at a fuel injection pressure of 180 bar. Methyl esters of Karanja oil, Rice Bran oil, and Castor oil were also tested in the same engine for comparison. BSFC values increased with increase in Biodiesel blend percentage in diesel. However, K20 and A20 showed fuel economy by 5.51% and 10.06% in comparison to diesel. The emissions of CO and HC with fuel A20 are decreased by 65.77% and 53.33% respectively. The NOx emission showed an increasing trend with the blending of algae methyl esters in diesel. The presence of DPF is credited for significant reduction of PM emissions. The results predicted that the usage of algae blends could be supported, although there is a slight reduction in engine performance and an increase in NOx emissions.

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Section: Introductionmentioning

confidence: 99%

Comparative performance and emission studies of the CI engine with Nodularia Spumigena microalgae biodiesel versus different vegetable oil derived biodiesel

Sharif

Rao

Jagadish³

2020

SN Appl. Sci.

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“…As shown in Table 2, the heating value decreased with the biodiesel blend fraction. Therefore, more fuel is consumed when the heating value drops in order to produce the same amount of torque for higher-level blends [31]. Also, the variation in BSFC was more prominent and higher for Processes 2020, 8, 990 7 of 20 CME fuel blends compared with the UPME fuel blends, except for B10.…”

Section: Brake Specific Fuel Consumptionmentioning

confidence: 97%

Performance, Emissions, Combustion and Vibration Analysis of a CI Engine Fueled with Coconut and Used Palm Cooking Oil Methyl Ester

et al. 2020

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Biodiesels from coconut and palm cooking oil are viable alternatives to diesel fuel due to their environmental sustainability and similar physicochemical properties compared to diesel. In the present study, these fuels were tested separately in a diesel engine by blending with fossil diesel in proportions of 10%, 20%, 30% and 40% by volume. Experiments were conducted under a constant brake mean effective pressure (BMEP) of 400 kPa and at 2000 rpm. The results revealed similarities in engine performance, emissions, combustion and engine block vibration for used palm cooking oil methyl ester (UPME) fuel blends and coconut methyl ester (CME) fuel blends. Most blends resulted in slight improvements in brake specific energy consumption (BSEC) and brake thermal efficiency (BTE). A maximum reduction of 54%, 89% and 16.8% in pollutant emissions of brake specific hydrocarbons (BSHC), brake specific carbon monoxide (BSCO) and brake specific nitrogen oxides (BSNOx), respectively, was observed with UPME and CME in the blends. The cylinder pressure profiles when UPME-diesel and CME-diesel blends were used were comparable to a standard diesel pressure trace, however, some deviations in peak pressure were also noticed. It was also apparent from the results that engine vibration was influenced by the type of methyl ester used and its blend composition. Notably, the rate of pressure increase was maintained within an acceptable limit when the engine was fueled with both of the methyl ester blends.

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“…Developments in the transportation sector, agricultural and industrial sectors reveal that fossil fuels play very important role [1]. However, there is increasing demand for alternative fuel such as biodiesel due to the increasing global population, depletion of world fossil fuel reserves, GHG emission, harmful environmental impact and toxic emissions associated with petroleum fuel resources [2][3][4]. The major contributing factors of negative environment impact of fossil fuels are the emissions of carbon monoxide (CO), smoke, unburned hydrocarbon (UHC), nitrogen oxides (NOx) and particulate matter (PM) pollutants [5].…”

Section: Introductionmentioning

confidence: 99%

“…Biodiesel is a fuel of short alkyl esters which are derived from non-fossil sources through catalysed alkaline-based chemical reaction, otherwise called transesterification. The process converts triacylglycerol (TAG) and alcohol into alkyl esters and fatty acid, with glycerol as co-product [2,9,10]. The process reduces the viscosity of the oil by the removal and replacement of glycerine in the oil with radicals of the alcohol [11].…”

Section: Introductionmentioning

confidence: 99%

Evaluation of Emission Pattern of Compression Ignition Engines Fuelled With Blends of Orange Peel Oil Based Biodiesel Using Artificial Neural Network Model

Owora

2020

IJESNR

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It is well established that Orange peeled oil biodiesel (OPOB) is a suitable fuel in Compression Ignition (CI) engines because of its compatible physicochemical properties with diesel. Literature is however sparse on its emission characteristics in CI engines majorly because few investigations have been done due to seemingly difficult and time-consuming experiments. On this strength, this work first carried out experimental investigations on carbon monoxide (CO), unburned hydrocarbon (UHC), oxides of nitrogen (NOX) and smoke of orange peel oil based biodiesel in single cylinder, four stroke CI engine; and afterwards applied the power of artificial neural networks (ANNs) prediction model to predict to the full-scale CO, UHC, NOX, and SMOKE values of the CI engine. Brake load, orange oil-diesel mixture percentages and engine speed were the inputs of the ANN while Levenberg Marquardt (trainlm) and scaled conjugate gradient (trainscg) were the training algorithms to enable better comparative estimation. Performance indicators (correlation coefficient (R), mean absolute percentage error (MAPE) and root mean squared error (RMSE)) were used to compare the predicted and experimental values of the neural network. The ANN trained with Levenberg Marquardt algorithm predicted the emissions with highest accuracy (R very close to +1) and low error rates. The study concludes that ANN is a reliable tool to investigate the emissions profile of a CI engine.

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Factors affecting biodiesel engine performance and exhaust emissions – Part II: Experimental study

Cited by 47 publications

References 28 publications

Comparative performance and emission studies of the CI engine with Nodularia Spumigena microalgae biodiesel versus different vegetable oil derived biodiesel

Comparative performance and emission studies of the CI engine with Nodularia Spumigena microalgae biodiesel versus different vegetable oil derived biodiesel

Performance, Emissions, Combustion and Vibration Analysis of a CI Engine Fueled with Coconut and Used Palm Cooking Oil Methyl Ester

Evaluation of Emission Pattern of Compression Ignition Engines Fuelled With Blends of Orange Peel Oil Based Biodiesel Using Artificial Neural Network Model

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