Prediction of the influence of castor oil–ethanol–diesel​ blends on single-cylinder diesel engine characteristics using generalized regression neural networks (GRNNs)

Aengchuan, Prasert; Wiangkham, Attasit; Klinkaew, Niti; Theinnoi, Kampanart; Sukjit, Ekarong

doi:10.1016/j.egyr.2022.10.113

Cited by 12 publications

(3 citation statements)

References 26 publications

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“…In this endeavor, the general or generalized regression neural networks (GRNNs) algorithm, known for its suitability in situations involving limited data sets, was chosen. [47][48][49] GRNNs, a type of supervised learning neural network, were employed to simulate the problem's behavior, accommodating both linear and nonlinear relationships. The supervised data set, comprising a total of 45 data points, was divided into training and testing sets using the K-fold cross-validation technique (with K set to 5).…”

Section: Multi-objective Function Modelingmentioning

confidence: 99%

Experimental and optimization study on the effects of diethyl ether addition to waste plastic oil on diesel engine characteristics

Wiangkham,

Klinkaew,

Aengchuan

et al. 2023

RSC Adv.

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Section: Multi-objective Function Modelingmentioning

confidence: 99%

Experimental and optimization study on the effects of diethyl ether addition to waste plastic oil on diesel engine characteristics

Wiangkham,

Klinkaew,

Aengchuan

et al. 2023

RSC Adv.

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“…However, the BSFC of all mixed fuels was slightly higher than that of diesel fuels. Prasert Aengchuan et al [27] used 10% castor oil, 10% ethanol, and 80% diesel to prepare a new blend. They found that 10% castor biodiesel can improve the shortcomings of diesel-ethanol blends.…”

Section: Introductionmentioning

confidence: 99%

The Effect of Different Mixing Proportions and Different Operating Conditions of Biodiesel Blended Fuel on Emissions and Performance of Compression Ignition Engines

Zheng,

Cho

2024

Energies

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Faced with the depletion of fossil fuels and increasingly serious environmental pollution, finding an environmentally friendly renewable alternative fuel has become one of the current research focuses. In order to find new alternative fuels, reduce dependence on fossil fuels, improve air quality, and promote sustainable development goals, castor biodiesel was produced through transesterification, and mixed with diesel in a certain proportion. The engine performance and emissions were compared and analyzed under fixed load and different speeds of agricultural diesel engines. Biofuel, as a fuel containing oxygen, promotes complete combustion to a certain extent. As the proportion of castor biodiesel in the mixed fuel increases, the emissions of pollutants such as CO, HC, and smoke show a decreasing trend. The lowest CO, HC, and smoke emissions were observed in the B80 blend at 1800 rpm, at 0.3%, 23 ppm, and 3%, respectively. On the contrary, the CO2 and NOx emissions of the B80 blend are higher than those of 2.7 diesel, reaching 2.5% and 332 ppm respectively at 1800 rpm. The lower calorific value and higher viscosity of biodiesel result in a decrease in BTE and an increase in the BSFC of the blends. Higher combustion temperatures at high speeds promote oxidation reactions, resulting in reduced HC, CO, and smoke emissions, but increased CO2 and NOx emissions. At high speeds, fuel consumption increases, BSFC increases, and BTE decreases. Overall, castor biodiesel has similar physical and chemical properties to diesel and can be mixed with diesel in a certain proportion for use in CI engines, making it an excellent alternative fuel.

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“…For NOx emissions, there is not much difference among all experimental fuels, which is attributed to the fact that the peak temperature in the cylinder of all experimental fuels is almost the same. Prasert Aengchuan et al [12] found that the mixture of castor biodiesel and ethanol can optimize the fuel performance of ethanol-diesel, thereby not being limited by diesel fuel usage regulations. With the combustion of castor oil blended fuel, the HC and CO emissions of castor biodiesel-diesel blends slightly increase, but the NOx emissions show a decreasing trend.…”

Section: Introductionmentioning

confidence: 99%

Investigation of the Impact of Castor Biofuel on the Performance and Emissions of Diesel Engines

Zheng,

Cho

2023

Energies

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Fossil fuel is a non-renewable fuel, and with the development of modern industry and agriculture, the storage capacity of fossil fuels is constantly decreasing. In this study, a systematic study and analysis were conducted on the combustion characteristics, engine performance, and exhaust emission characteristics of castor biodiesel–diesel blends and pure diesel fuel in different proportions at different speeds of a single-cylinder four-stroke diesel engine under constant load. The castor biodiesel required for the experiment is generated through an ester exchange reaction and mixed with diesel in proportion to produce biodiesel–diesel blends. The experimental results show that as an oxygenated fuel with a higher cetane number, the CO, HC, and smoke emissions of diesel and B80 blend fuel at 1800 rpm were reduced by 16.9%, 31.6%, and 68%, respectively. On the contrary, the NOx and CO2 emissions increased by 17.3% and 34.6% compared to diesel at 1800 rpm. In addition, due to its high viscosity and low calorific value, the brake thermal efficiency and brake-specific fuel consumption of the biodiesel–diesel blends are slightly lower than those of diesel, but the biodiesel–diesel blends exhibit lower exhaust gas temperatures. Comparing B80 and diesel fuel at 1800 rpm, the BSFC of diesel at 1800 rpm is 3.12 kg/W·h, whereas for B80 blended fuel, it increases to 4.2 kg/W·h, and BTE decreases from 25.39% to 21.33%. On the contrary, B60 blended fuel exhibits a lower exhaust emission temperature, displaying 452 °C at 1800 rpm. Based on the experimental results, it can be concluded that castor biodiesel is a very promising clean alternative fuel with low waste emissions and good engine performance.

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Prediction of the influence of castor oil–ethanol–diesel blends on single-cylinder diesel engine characteristics using generalized regression neural networks (GRNNs)

Cited by 12 publications

References 26 publications

Experimental and optimization study on the effects of diethyl ether addition to waste plastic oil on diesel engine characteristics

Experimental and optimization study on the effects of diethyl ether addition to waste plastic oil on diesel engine characteristics

The Effect of Different Mixing Proportions and Different Operating Conditions of Biodiesel Blended Fuel on Emissions and Performance of Compression Ignition Engines

Investigation of the Impact of Castor Biofuel on the Performance and Emissions of Diesel Engines

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Prediction of the influence of castor oil–ethanol–diesel​ blends on single-cylinder diesel engine characteristics using generalized regression neural networks (GRNNs)

Cited by 12 publications

References 26 publications

Experimental and optimization study on the effects of diethyl ether addition to waste plastic oil on diesel engine characteristics

Experimental and optimization study on the effects of diethyl ether addition to waste plastic oil on diesel engine characteristics

The Effect of Different Mixing Proportions and Different Operating Conditions of Biodiesel Blended Fuel on Emissions and Performance of Compression Ignition Engines

Investigation of the Impact of Castor Biofuel on the Performance and Emissions of Diesel Engines

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Prediction of the influence of castor oil–ethanol–diesel blends on single-cylinder diesel engine characteristics using generalized regression neural networks (GRNNs)