Spraying of Composite Liquid Fuels Based on Types of Coal Preparation Waste: Current Problems and Achievements: Review

This article discusses the atomization of composite liquid fuels. A large group of injectors is considered. A comparative analysis of the atomization characteristics (droplet sizes and velocities, jet opening angles) and the influence of the fuel characteristics (density, viscosity, component compos...

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Autores principales:	Roman Volkov, Timur Valiullin, Olga Vysokomornaya
Formato:	article
Lenguaje:	EN
Publicado:	MDPI AG 2021
Materias:	composite liquid fuels spaying atomization nozzle devices injectors primary and secondary atomization Technology T
Acceso en línea:	https://doaj.org/article/ed96ef2bf1834996b36ccc110fe55e55
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spelling	oai:doaj.org-article:ed96ef2bf1834996b36ccc110fe55e552021-11-11T16:01:42ZSpraying of Composite Liquid Fuels Based on Types of Coal Preparation Waste: Current Problems and Achievements: Review10.3390/en142172821996-1073https://doaj.org/article/ed96ef2bf1834996b36ccc110fe55e552021-11-01T00:00:00Zhttps://www.mdpi.com/1996-1073/14/21/7282https://doaj.org/toc/1996-1073This article discusses the atomization of composite liquid fuels. A large group of injectors is considered. A comparative analysis of the atomization characteristics (droplet sizes and velocities, jet opening angles) and the influence of the fuel characteristics (density, viscosity, component composition) and the process parameters (the ratio of the fuel–air mass flow rates, the features of the jet formation) has been carried out. Finally, the most effective types of injectors, which provide for the necessary characteristics of fuel atomization for its combustion, have been determined. The most favorable conditions for the applicability of each type of atomization have been formulated. Possible mechanisms of secondary fragmentation of droplets of composite fuels have been analyzed: those resulting from mutual collisions of droplets in the flux and from the interaction with a solid surface as well as those resulting from thermal overheating in the presence of a phase boundary or a large gradient of component volatility. A conclusion is made about the need of using a synergistic effect of primary and secondary atomization of fuel suspension droplets.Roman VolkovTimur ValiullinOlga VysokomornayaMDPI AGarticlecomposite liquid fuelsspayingatomizationnozzle devicesinjectorsprimary and secondary atomizationTechnologyTENEnergies, Vol 14, Iss 7282, p 7282 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	composite liquid fuels spaying atomization nozzle devices injectors primary and secondary atomization Technology T
spellingShingle	composite liquid fuels spaying atomization nozzle devices injectors primary and secondary atomization Technology T Roman Volkov Timur Valiullin Olga Vysokomornaya Spraying of Composite Liquid Fuels Based on Types of Coal Preparation Waste: Current Problems and Achievements: Review
description	This article discusses the atomization of composite liquid fuels. A large group of injectors is considered. A comparative analysis of the atomization characteristics (droplet sizes and velocities, jet opening angles) and the influence of the fuel characteristics (density, viscosity, component composition) and the process parameters (the ratio of the fuel–air mass flow rates, the features of the jet formation) has been carried out. Finally, the most effective types of injectors, which provide for the necessary characteristics of fuel atomization for its combustion, have been determined. The most favorable conditions for the applicability of each type of atomization have been formulated. Possible mechanisms of secondary fragmentation of droplets of composite fuels have been analyzed: those resulting from mutual collisions of droplets in the flux and from the interaction with a solid surface as well as those resulting from thermal overheating in the presence of a phase boundary or a large gradient of component volatility. A conclusion is made about the need of using a synergistic effect of primary and secondary atomization of fuel suspension droplets.
format	article
author	Roman Volkov Timur Valiullin Olga Vysokomornaya
author_facet	Roman Volkov Timur Valiullin Olga Vysokomornaya
author_sort	Roman Volkov
title	Spraying of Composite Liquid Fuels Based on Types of Coal Preparation Waste: Current Problems and Achievements: Review
title_short	Spraying of Composite Liquid Fuels Based on Types of Coal Preparation Waste: Current Problems and Achievements: Review
title_full	Spraying of Composite Liquid Fuels Based on Types of Coal Preparation Waste: Current Problems and Achievements: Review
title_fullStr	Spraying of Composite Liquid Fuels Based on Types of Coal Preparation Waste: Current Problems and Achievements: Review
title_full_unstemmed	Spraying of Composite Liquid Fuels Based on Types of Coal Preparation Waste: Current Problems and Achievements: Review
title_sort	spraying of composite liquid fuels based on types of coal preparation waste: current problems and achievements: review
publisher	MDPI AG
publishDate	2021
url	https://doaj.org/article/ed96ef2bf1834996b36ccc110fe55e55
work_keys_str_mv	AT romanvolkov sprayingofcompositeliquidfuelsbasedontypesofcoalpreparationwastecurrentproblemsandachievementsreview AT timurvaliullin sprayingofcompositeliquidfuelsbasedontypesofcoalpreparationwastecurrentproblemsandachievementsreview AT olgavysokomornaya sprayingofcompositeliquidfuelsbasedontypesofcoalpreparationwastecurrentproblemsandachievementsreview
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Spraying of Composite Liquid Fuels Based on Types of Coal Preparation Waste: Current Problems and Achievements: Review

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