Emission Performance of a Diesel Engine Fuelled with Petrol Diesel, Green Diesel, and Waste Cooking Oil Blends

Chiavola, Ornella; Recco, Erasmo

doi:10.1155/2018/4819175

Cited by 14 publications

(20 citation statements)

References 31 publications

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“…By entering the experimental combustion data into Equation ( 6), the heat release profile in the engine can be reconstructed as recommended by many authors using the analysis model [11,14,22]. The evolutions of the heat release profile(s) for an engine speed of 1500 rpm correspond to the load ranges: 25%, 50%, 75% and 100%.…”

Section: Modeling Of Zero-dimensional Thermodynamic Combustionmentioning

confidence: 99%

Experimental and Simulation of Diesel Engine Fueled with Biodiesel with Variations in Heat Loss Model

et al. 2021

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This study presents an experimental investigation and thermodynamic 0D modeling of the combustion of a compression-ignition engine, fueled by an alternative fuel based on neem biodiesel (B100) as well as conventional diesel (D100). The study highlights the effects of the engine load at 50%, 75% and 100% and the influence of the heat loss models proposed by Woschni, Eichelberg and Hohenberg on the variation in the cylinder pressure. The study shows that the heat loss through the cylinder wall is more pronounced during diffusion combustion regardless of the nature of the fuels tested and the load range required. The cylinder pressures when using B100 estimated at 89 bars are relatively higher than when using D100, about 3.3% greater under the same experimental conditions. It is also observed that the problem of the high pressure associated with the use of biodiesels in engines can be solved by optimizing the ignition delay. The net heat release rate remains roughly the same when using D100 and B100 at 100% load. At low loads, the D100 heat release rate is higher than B100. The investigation shows how wall heat losses are more pronounced in the diffusion combustion phase, relative to the premix phase, by presenting variations in the curves.

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Section: Modeling Of Zero-dimensional Thermodynamic Combustionmentioning

confidence: 99%

Experimental and Simulation of Diesel Engine Fueled with Biodiesel with Variations in Heat Loss Model

et al. 2021

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“…The investigation is based on the results of a previous activity on the same engine, which pointed out how using diesel + on replacement of ULSD allows for a reduction of CO, HC, and soot emissions, along with an increase of NO x emission [26]. Jet A was blended with diesel +; the combustion and pollutant emissions were analyzed with the aim of evaluating the impact of different percentages of Jet A on diesel + behaviour as a function of engine speed condition.…”

Section: Jet a Blended With Diesel +mentioning

confidence: 99%

“…The primary factors that affect NO x formation are the availability of oxygen and the high combustion temperature. Both diesel and aviation fuel have limited oxygen content and similar air/fuel ratio; for diesel +, the enhanced portion of premixed combustion at 80% of load is responsible for the higher temperature in the cylinder, thus contributing to the larger amount of NO x [26]. Figure 3 presents the effect of Jet A on the particulate emission of the engine.…”

Section: Jet a Blended With Diesel +mentioning

confidence: 99%

“…Aiming at increasing the percentage of renewable fuel, instead of petrol diesel, it was used an innovative fuel (diesel +), in which a fraction of renewable diesel is contained. Previous research activity was devoted to analyze the combustion process and emission characteristics of a diesel engine fuelled with biodiesel from waste cooking oil in blends of petrol diesel and renewable diesel [26]. The results established that the use of a blend of diesel + and biodiesel from WCO enhances PM, HC, and CO emissions in the exhaust as regards petrol diesel; a moderate increase characterizes nitrogen oxides emission.…”

Section: Introductionmentioning

confidence: 96%

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Impact on Combustion and Emissions of Jet Fuel as Additive in Diesel Engine Fueled with Blends of Petrol Diesel, Renewable Diesel and Waste Cooking Oil Biodiesel

2019

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This study is devoted to investigating the potential use of Jet A in blend along with biodiesel from waste cooking oil, petrol diesel, and renewable diesel. Biodiesel use allows for reducing carbon monoxide (CO), unburned hydrocarbons (HC), and soot due to the oxygen contained in the fuel. The drawbacks in its use are related to the low volatility and high viscosity of vegetable oil that cause difficulties in fuel atomization and in its mixing with air. Moreover, an increased amount of NOx emission was observed. The aim of the experimentation is to evaluate the ability of Jet A of enhancing the combustion process and pollutant emissions of a diesel engine, thus overcoming the difficulties in biodiesel usage (high viscosity, poor cold weather performance, compatibility with diesel engine equipment) and then increasing the renewable fuel percentage in the fuel. Testing was carried out on a small displacement common rail diesel engine. Hardware and ECU setting were not modified in order to let the engine be ready to operate with different and exchangeable fuels. The effect on pollutant emissions of a variation of the amount of Jet A and biodiesel in the fuel is investigated, while accounting for the engine speed value.

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“…The growing concern over fast depletion of the worlds' crude oil reserve, fuel price volatility and stringent pollution regulation has placed the future of fossil fuels under serious threat; this has generated research interest in production of supplementary and surrogate fuels. Biodiesels have been found to be promising substitute fuels and supplementary fuels in internal combustion engines [1,2]. Biodiesel is a preferable fuel option because it is renewable, biodegradable and non-toxic, with high flash point and reduces green house gas emission [3].…”

Section: Introductionmentioning

confidence: 99%

Optimization and Prediction of Biodiesel Yield from Moringa Seed Oil and Characterization

Chisa

Nguseer

Adidauki

et al. 2021

JBLS

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In this study, oil was extracted from Moringa seed using mechanical and solvent methods. To transesterify the oil into biodiesel, factorial design of experiment of 2 4 was used to obtain different combination factors at different level of reaction temperature, catalyst amount, reaction time and alcohol to oil ratio, giving rise to 48 experimental runs. The oil sample was transesterified in 48 experimental runs, in each case the biodiesel yield was recorded in percentage. The biodiesel was then characterized according to ASTM test protocol. Factorial design model was developed using Design Expert 7.0, the model generated R of 0.987 and Mean Square Error (MSE) of 5.0453 and was used to predict and optimize biodiesel yield. Artificial Neural Network (ANN) model from MATLAB R2016a was developed using 4 input variables and 30 runs, the remaining 18 runs were tested with the ANN model to predict and compare the biodiesel yield with the experimental biodiesel yield, the model generated R value of 0.99687 and MSE of 3.50804. It was found that solvent method yielded more oil than mechanical method, the biodiesel has good thermo-physical property, optimum biodiesel yield of 91.45 % was obtained at 5:1 alcohol/ oil molar ratio, 18.89 wt% catalyst amounts, 45 minutes reaction time and at 45 ℃ reaction temperature. The experimental validation yielded 88.33 % biodiesel. The ANN model adequately predicted the remaining 18 runs with R 2 value of 0.99649 and MSE of 4.914243. Both models proved adequate enough to predict biodiesel yield but ANN model proved more adequate.

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Emission Performance of a Diesel Engine Fuelled with Petrol Diesel, Green Diesel, and Waste Cooking Oil Blends

Cited by 14 publications

References 31 publications

Experimental and Simulation of Diesel Engine Fueled with Biodiesel with Variations in Heat Loss Model

Experimental and Simulation of Diesel Engine Fueled with Biodiesel with Variations in Heat Loss Model

Impact on Combustion and Emissions of Jet Fuel as Additive in Diesel Engine Fueled with Blends of Petrol Diesel, Renewable Diesel and Waste Cooking Oil Biodiesel

Optimization and Prediction of Biodiesel Yield from Moringa Seed Oil and Characterization

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