Combustion of a Powder Layer of Methane Hydrate: The Influence of Layer Height and Air Velocity Above the Layer

Misyura, S.Y.; Donskoy, Igor; Manakov, Andrey Yu.; Морозов, В. С.; Стрижак, П. А.; Skiba, Sergey S.; Sagidullin, A. K.

doi:10.1007/s10494-022-00325-x

Cited by 19 publications

(4 citation statements)

References 43 publications

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“…, and F 1 is the part of the particle surface that is occupied by pores. Modeling of the combustion of gas hydrates shows that a satisfactory generalization of experimental data on methane hydrate dissociation is realized through neglecting self-preservation, i.e., the filtration resistance of pores in the ice shell can be neglected [55]. In this case, the value of parameter γ tends to zero.…”

Section: Calculation Of the Gas Hydrate Dissociation And Flame Exting...mentioning

confidence: 99%

Combustion of Liquid Fuels in the Presence of CO2 Hydrate Powder

Misyura

Морозов

Donskoy

et al. 2023

Fire

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The process of combustion of a liquid fuel layer (diesel, kerosene, gasoline, separated petroleum, and oil) in the presence of CO2 hydrate has been studied. These fuels are widely used in engineering, which explains the great interest in effective methods of extinguishing. Extinguishing liquid fuels is quite a complicated scientific and technical task. It is often necessary to deal with fire extinction during oil spills and at fuel burning in large containers outdoors and in warehouses. Recently, attention to new extinguishing methods has increased. Advances in technology of the production, storage, and transportation of inert gas hydrates enhance the opportunities of using CO2 hydrate for extinguishing liquid fuels. Previous studies have shown a fairly high efficiency of CO2 hydrate (compared to water spray) in the extinction of volumetric fires. To date, there are neither experimental data nor methods for determining the dissociation rate of CO2 hydrate powder at the time of the gas hydrate fall on the burning layer of liquid fuel. The value of the dissociation rate is important to know in order to determine the temperatures of stable combustion and, accordingly, the mass of CO2 hydrate required to extinguish the flame. For the first time, a method jointly accounting for both the combustion of liquid fuel and the dissociation rate of the falling powder of gas hydrate at a negative temperature is proposed. The combustion stability depends on many factors. This paper defines three characteristic modes of evaporation of a liquid fuel layer, depending on the prevalence of vapor diffusion or free gas convection. The influence of the diameter and height of the layer on the nature of fuel evaporation is investigated.

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Section: Calculation Of the Gas Hydrate Dissociation And Flame Exting...mentioning

confidence: 99%

Combustion of Liquid Fuels in the Presence of CO2 Hydrate Powder

Misyura

Морозов

Donskoy

et al. 2023

Fire

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“…The studies explores the potential and challenges of using gas hydrates in energy, gas separation, and desalination processes [8][9][10][11][12][13][14][15][16][17].…”

Section: Introductionmentioning

confidence: 99%

“…Methane-propane hydrate ignition research reveals ignition delay variations with particle size and temperature, aiding power plant gas hydrate ignition prediction [15]. The study on methane hydrate powder combustion examines the impact of layer thickness and air velocity, highlighting the influence of heat transfer, external convection, and vapor concentration on combustion temperature [16].…”

Section: Introductionmentioning

confidence: 99%

Exploring the role of silver nanoparticles and surfactants in gas hydrate formation: a study on structural dynamics

Bozhko,

Zhdanov,

Gets

et al. 2024

E3S Web Conf.

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This study explores how silver nanoparticles (5Å in diameter), SDS affect carbon dioxide hydrate formation, particularly their role in speeding up the creation of clathrate hydrates. The research highlights the importance of nanoparticles and surfactants in managing gas hydrates, with potential benefits for natural resource management and reducing greenhouse gases. Data analysis focused on the structural order parameter F4, revealing no significant impact from silver nanoparticles on F4’s behavior in carbon dioxide–water systems with or without SDS (500ppm). However, the presence of SDS surfactant markedly alters F4, underscoring surfactants’ influence on hydrate formation. The dynamic shifts in F4 during the study illustrate the complex interplay between system components in hydrate formation.

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“…Natural gas hydrate is considered one of the most important alternative energy sources in the 21st century because of its huge reserves, high energy density, low carbon emissions, lack of harmful substances, etc. [3,4]. The exploitation of natural gas hydrates is of great significance to solving the problem of future energy supply [5,6].…”

Section: Introductionmentioning

confidence: 99%

Effect of Lithological Parameters on Combustion Characteristics of Methane Hydrate Sediments

Cui,

Wu,

et al. 2023

Fire

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In this paper, four lithological parameters, that is, thermal conductivity, particle size, porosity, and saturation, are investigated by combining experimental observations with numerical simulations to study the influence laws and mechanisms of action on the combustion process of methane hydrate sediments. The variations in combustion characteristics parameters such as flame height, effective combustion ratio, and dimensionless discharge water mass with the lithological parameters are studied. In addition, the combustion mechanism of lithologic parameters on methane hydrate deposits is revealed. Combining the experimental results and simulation calculations to optimize the combustion of methane hydrate sediments, it is recommended to use methane hydrate sediment samples with high saturation and low thermal conductivity, while the oxidant concentration and porosity of methane hydrate sediment samples should be increased.

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Combustion of a Powder Layer of Methane Hydrate: The Influence of Layer Height and Air Velocity Above the Layer

Cited by 19 publications

References 43 publications

Combustion of Liquid Fuels in the Presence of CO2 Hydrate Powder

Combustion of Liquid Fuels in the Presence of CO2 Hydrate Powder

Exploring the role of silver nanoparticles and surfactants in gas hydrate formation: a study on structural dynamics

Effect of Lithological Parameters on Combustion Characteristics of Methane Hydrate Sediments

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