Special Issue "Sustainability of Fossil Fuels: Properties, Preparation, Transportation, Spaying, Combustion"

A special issue of Energies (ISSN 1996-1073). This special issue belongs to the section "Energy Sources".

Deadline for manuscript submissions: 29 February 2020.

Special Issue Editor

Prof. Dr. Pavel A. Strizhak
E-Mail Website1 Website2
Guest Editor
Department of Power Engineering National Research, Tomsk Polytechnic University, Tomsk 634050, Russia
Interests: energy; fuels; ignition; combustion chemistry; environmental performance; gas emissions; waste-derived fuels; coal–water slurry; waste to energy; thermal engineering; mathematical modeling; heat and mass transfer
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Special Issue Information

Dear Colleagues,

The aim of this Special Issue is to provide readers with the results of fundamental and applied research in the field of energy production from the combustion of fossil fuels (coal, peat, oil), waste-derived fuels and biomass.

We are pleased to invite researchers to contribute to the creation of a Special Issue dedicated to various aspects of sustainable use of fossil fuels, biomass, and waste-derived fuels.

The main acclaimed research directions in the use of fossil fuels are their properties, preparation, transportation, spaying, and combustion.

In preparing this Special Issue, we will attempt to reveal different directions for solving environmental, energy, and economic problems in different regions of the world by increasing the efficiency of fossil fuel combustion. We therefore invite authors to focus their attention on the mandatory explanation of the scientific novelty of the results of fundamental and applied research with an extended review of the work of other authors.

Prof. Dr. Pavel A. Strizhak
Guest Editor

Manuscript Submission Information

Manuscripts should be submitted online at www.mdpi.com by registering and logging in to this website. Once you are registered, click here to go to the submission form. Manuscripts can be submitted until the deadline. All papers will be peer-reviewed. Accepted papers will be published continuously in the journal (as soon as accepted) and will be listed together on the special issue website. Research articles, review articles as well as short communications are invited. For planned papers, a title and short abstract (about 100 words) can be sent to the Editorial Office for announcement on this website.

Submitted manuscripts should not have been published previously, nor be under consideration for publication elsewhere (except conference proceedings papers). All manuscripts are thoroughly refereed through a single-blind peer-review process. A guide for authors and other relevant information for submission of manuscripts is available on the Instructions for Authors page. Energies is an international peer-reviewed open access semimonthly journal published by MDPI.

Please visit the Instructions for Authors page before submitting a manuscript. The Article Processing Charge (APC) for publication in this open access journal is 1800 CHF (Swiss Francs). Submitted papers should be well formatted and use good English. Authors may use MDPI's English editing service prior to publication or during author revisions.

Keywords

  • Combustion of solid, liquid, and composite fuels
  • Preparation of fuel composition
  • Transportation and spraying of fuels
  • Properties of fossil fuels, combustible wastes, and biomass
  • Ecological problems of thermal power industry
  • Technical and economic problems of thermal power industry
  • Optimal use of energy resources

Published Papers (2 papers)

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Research

Open AccessFeature PaperArticle
Interaction of Liquid Droplets in Gas and Vapor Flows
Energies 2019, 12(22), 4256; https://doi.org/10.3390/en12224256 - 08 Nov 2019
Abstract
We investigated the conditions, characteristics, and outcomes of liquid droplet interaction in the gas medium using video frame processing. The frequency of different droplet collision outcomes and their characteristics were determined. Four interaction regimes were identified: bounce, separation, coalescence, and disruption. Collision regime [...] Read more.
We investigated the conditions, characteristics, and outcomes of liquid droplet interaction in the gas medium using video frame processing. The frequency of different droplet collision outcomes and their characteristics were determined. Four interaction regimes were identified: bounce, separation, coalescence, and disruption. Collision regime maps were drawn up using the Weber, Reynolds, Ohnesorge, Laplace, and capillary numbers, as well as dimensionless linear and angular parameters of interaction. Significant differences were established between interaction maps under ideal conditions (two droplets colliding without a possible impact of the neighboring ones) and collision of droplets as aerosol elements. It was shown that the Weber number could not be the only criterion for changing the collision mode, and sizes and concentration of droplets in aerosols influence collision modes. It was established that collisions of droplets in a gaseous medium could lead to an increase in the liquid surface area by 1.5–5 times. Such a large-scale change in the surface area of the liquid significantly intensifies heat transfer and phase transformations in energy systems. Full article
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Open AccessArticle
Influence of the Particle Size of Sandy Sediments on Heat and Mass Transfer Characteristics during Methane Hydrate Dissociation by Thermal Stimulation
Energies 2019, 12(22), 4227; https://doi.org/10.3390/en12224227 - 06 Nov 2019
Abstract
Natural gas hydrate could be regarded as an alternative energy source in the future. Therefore, the investigation of the gas production from hydrate reservoirs is attracting extensive attention. In this work, a novel set-up was built to investigate sand production and sediment deformation [...] Read more.
Natural gas hydrate could be regarded as an alternative energy source in the future. Therefore, the investigation of the gas production from hydrate reservoirs is attracting extensive attention. In this work, a novel set-up was built to investigate sand production and sediment deformation during hydrate dissociation by heat stimulation. The influence of the particle sizes on the hydrate dissociation and sediment deformation was first investigated experimentally. The experimental results indicated that the rate of hydrate decomposition by heat stimulation was in proportion to the particle size of the sediment. The heat transfer rate and the energy efficiency decreased with the decrease of the particle size of the sediment. This was because higher permeability might lead to a larger sweep area of the fluid flow, which was beneficial for the supply of heat for hydrate dissociation. The sand production was found during hydrate dissociation by heat stimulation. The particle migration was due to the hydrodynamics of the water injection. The sand sediment expanded under the drive force from water injection and hydrate dissociation. Additionally, the smaller permeability led to the larger pressure difference leading to the larger sediment deformation. Because the sediment became loose after hydrate dissociation, small particle migration due to the hydrodynamics of the water injection could happen during the experiments. However, the sand production in the sediment with the larger particle size was more difficult, because the larger particles were harder to move due to the hydrodynamics, and the larger particles were harder to move across the holes on the production well with a diameter of 1 mm. Therefore, the sediment deformation during hydrate dissociation by heat stimulation should not be ignored. Full article
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