Ethers and esters as alternative fuels for internal combustion engine: A review

Hua, Yang

doi:10.1177/14680874211046480

Cited by 10 publications

(4 citation statements)

References 215 publications

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“…Several alternatives to diesel are explored based on ''well-to-wheel'' greenhouse gas emissions. 1,2 Due to lower carbon dioxide emissions in the life cycle, biodiesel is considered the best alternative to ethanol. 3,4 It overcomes vehicle adaptations and specific fuel delivery infrastructure that compressed natural gas and liquefied petroleum gas alternatives confront.…”

Section: Introductionmentioning

confidence: 99%

Investigations on the applicability of machine learning algorithms to optimize biodiesel composition for improved engine fuel properties

Bukkarapu,

Krishnasamy

2024

International Journal of Engine Research

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Selecting suitable biodiesel for the intended application is challenging due to the significant variations in the feedstock for producing biodiesel. The available models to predict biodiesel properties have limited applicability and reliability. The present work addresses these two challenges by developing reliable models based on machine learning algorithms for predicting engine fuel properties of biodiesel and optimizing biodiesel composition for better fuel properties. The models are developed using multilinear regression (MLR), artificial neural networks (ANN), support vector machine regression with grid search (SVMGS), Bayesian optimization (SVMBO) and grey-wolf optimization (SVMGWO) for hyperparameter tuning, Gaussian process regression (GPR), random forest (RF), and adaptive neuro-fuzzy inference system (ANFIS) algorithms. The models are trained to predict viscosity, cetane number, and calorific value from 13 methyl ester constituents of 70 biodiesels. SVMGS models predicted the viscosity, cetane number, and calorific value of 33 validation samples with a mean absolute percentage error of 1.54%, 1%, and 0.43%. Biodiesel composition was optimized to minimize viscosity and maximize cetane number and calorific value. The optimized composition exhibits 3.72 cSt viscosity, 57 cetane number, and 43 MJ/kg calorific value, which can be prepared by blending 68% ± 1% camelina and 32% ± 1% coconut oil. Applying machine learning algorithms to predict biodiesel properties yielded more accurate predictions than available models. It helped find the optimal composition for improved engine characteristics.

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Section: Introductionmentioning

confidence: 99%

Investigations on the applicability of machine learning algorithms to optimize biodiesel composition for improved engine fuel properties

Bukkarapu,

Krishnasamy

2024

International Journal of Engine Research

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“…To address these difficulties, introducing additives of more reactive compounds into methane is proposed-first of all, hydrogen, as well as diesel fuels, various ethers, etc. [1][2][3][4][5].…”

Section: Introductionmentioning

confidence: 99%

The Influence of Biofuels Addition on Shock-Induced Ignition and Combustion of Methane–Hydrogen Mixtures

Drakon,

Eremin

2023

Fire

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The ignition and combustion of three-component methane–hydrogen biofuel mixtures, considered as prospective fuels, were experimentally and numerically studied. Ignition delays in argon-diluted methane–hydrogen mixtures partially substituted with methanol or dimethyl ether were measured behind reflected shock waves in a temperature range of 1050–1900 K at pressures of 3.5–5.5 bar. The obtained results were used for validation of modern kinetic mechanisms for hydrocarbons combustion. Numerical modeling of the combustion of the considered fuels in air at elevated pressures and temperatures was carried out, simulating typical engine compressed conditions, and the dependencies of key parameters such as flame velocity and temperature on fuel composition were obtained. The results of the study can be used in developing new energy technologies, reducing the environmental impact of hydrocarbon combustion.

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“…The versatility of the power supply of such a vehicle (gasoline or natural gas) is also its disadvantage, since the full potential of the high detonation resistance of natural gas is not used (Lopatin, 2020). At the beginning of the 2020s, carburetor engines in agriculture recede into the background, due to their obsolescence and inefficiency, as well as unsatisfactory environmental parameters (Hua, 2021). However, there are publications about the experience of gas cars manufactured in the USSR (Union of Soviet Socialist Republics) running on compressed natural gas (CNG), which revealed a number of positive aspects (Poliakov & Mariyanko, 2014).…”

Section: Introductionmentioning

confidence: 99%

Problems and prospects of creating modern agricultural gas diesel engines: A literature review

Ryaboshapka,

Lysenko

2023

UBSRAS

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In conditions of constant growth in the cost of traditional oil products and their shortage, the issue of using alternative fuels becomes urgent. The purpose of the article is to identify ways of using alternative types of fuel for the operation of diesel engines. Research methods – analysis and verification of data obtained from scientific publications, which are part of the world-famous scient metric databases, for the relevance of the subject of research. The research results reveal the advantages and disadvantages of dual-fuel engines operating on gaseous fuel with diesel fuel additive, the impact of this type of engine on emissions and toxicity of exhaust gases, in particular nitrogen oxides NOx. The application of the so-called gas nozzle and the cross-section of the holes of its nozzles are substantiated. It was analysed and established that the most economically expedient is the use of liquefied petroleum gas for the operation of diesel engines by implementing the gas-liquid cycle; it was found that the most promising for this is gas cylinder equipment of the so-called 4th generation. A retrospective analysis of studies of internal combustion engines with gas cylinder equipment showed an increase in motor resource when using gaseous fuels, as well as the negative side of using gaseous fuels, which consists in reduced power when converting carburettor engines, however, the use of these fuels for the operation of diesel engines completely eliminates this disadvantage. Based on the research analysis, the influence of the ignition dose, when the engine is operating on the gas-diesel cycle, on the performance at different loads was also established, and a recommendation was found to switch to the diesel cycle from the gas-diesel cycle at loads less than 30% of the nominal one. The optimal scheme for the implementation of the gas-diesel cycle, which is relevant and promising for more widespread energy and transport vehicles, has been substantiated and selected. Based on the analysed schemes, it was established that the scheme that can be taken as a basis for further research in this direction is the scheme of the DG-Flex BOSCH gas-diesel system. The practical value of the work lies in the justification of complex conversion with partial replacement of diesel fuel with liquefied petroleum gas as the most rational way of converting serial diesel engines into dual-fuel engines

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Ethers and esters as alternative fuels for internal combustion engine: A review

Cited by 10 publications

References 215 publications

Investigations on the applicability of machine learning algorithms to optimize biodiesel composition for improved engine fuel properties

Investigations on the applicability of machine learning algorithms to optimize biodiesel composition for improved engine fuel properties

The Influence of Biofuels Addition on Shock-Induced Ignition and Combustion of Methane–Hydrogen Mixtures

Problems and prospects of creating modern agricultural gas diesel engines: A literature review

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