Potential of CBM as an Energy Vector in Active Mines and Abandoned Mines in Russia and Europe

Arenillas, Isabel Amez; León, David; Ivannikov, Alexander; Kolikov, Konstantin; Somoza, Blanca Castells

doi:10.3390/en16031196

Cited by 8 publications

(10 citation statements)

References 47 publications

(74 reference statements)

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“…In the context of growing energy demand in various industries, the global importance of electricity production and its efficient distribution cannot be overestimated [1][2][3]. Numerous methods and technologies have been proposed to produce cost-effective energy, encompassing not only conventional approaches, but also alternative energy sources [4] and unconventional energy acquisition methods [5,6]. A particular emphasis is placed on renewable energy sources and technologies [7,8], aligning with the contemporary requirements for environmentally responsible industries and the increasing prominence of green energy.…”

Section: Introductionmentioning

confidence: 99%

Optimization of Equipment Operation in Power Systems Based on the Use in the Design of Frequency-Dependent Models

Monakov,

Tarasov,

Ivannikov

et al. 2023

Energies

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This article is devoted to the biggest problem of our time: the development of modern and highly efficient equipment for energy systems. We propose improved mathematical models for starting asynchronous motors in isolated power systems. The results of experiments carried out on a model of an isolated network are presented. Both frequency-dependent and frequency-independent models were used. A comparison of various models is given. The advantages of the frequency-dependent model, which provides a more accurate representation of the processes, are shown. The obtained results were discussed, and the possibility of their use for future research was assessed.

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Section: Introductionmentioning

confidence: 99%

Optimization of Equipment Operation in Power Systems Based on the Use in the Design of Frequency-Dependent Models

Monakov,

Tarasov,

Ivannikov

et al. 2023

Energies

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“…aimed at preventing the formation of stress concentration areas. The use of these measures contributes to the fact that the stress zones are shifted deeper into the massif, and their number also decreases [7,8].…”

Section: Introductionmentioning

confidence: 99%

“…With an increase in the strength of rocks, the depth of mining operations, and rock pressure, the probability of a rock burst also increases. The presence of discontinuous faults also increases the probability of a rock burst [7,8,9].…”

Section: Introductionmentioning

confidence: 99%

Determination of the miners’ individual injury risk as a result of the dynamic manifestation of rock pressure

Kaverzneva,

Rodionov,

Skripnik

et al. 2023

E3S Web of Conf.

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The injury rate in underground coal mining is extremely high. One of the factors leading to injuries in underground mining is rock bursts. Although rock bursts are not the most common cause of injury in this industry, their consequences are extremely severe. At the same time, the level of injuries as a result of the manifestation of this factor remains high and almost does not change over the past years. The paper presents a method for determining the risk of injury of varying severity as a result of rock bursts. Multifunctional security systems that allow obtaining information about the state of the rock mass are analyzed. Based on the data obtained from these systems, the probability of a rock burst is assessed. The paper also deals with the processing of statistical information on light, severe and fatal injuries caused by rock bursts in the coal mines of the Kuznetsk coal basin. On the basis of statistical data and the results of measurements of the main parameters of the rock mass, the value of the individual risk is determined. It is advisable to correlate the obtained value with the average occupational risk in production.

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“…Despite the degassing of coal seams during mining [2,3], methane and other colliery gases inevitably migrate to the surface, even after mine closure [4]. The gas emissions into the atmosphere contribute to the greenhouse effect [5,6] and, along with other mining hazards [7][8][9][10], create dangerous situations in mining areas. A number of studies provide a long-term history of cases associated with gas emissions [11,12].…”

Section: Introductionmentioning

confidence: 99%

Study of the Migrating Mine Gas Piston Effect during Reactivation of Tectonic Faults

Batugin,

Kobylkin,

Kolikov

et al. 2023

Applied Sciences

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The hypothesis of the piston effect during mine gas migration caused by fault reactivation was studied, with the use of computer modeling, to explain cases of a sudden appearance of mine gases on the earth surface in coal mining areas. The study is based on the factual data of the mode and amplitudes of subsidence along faults during mining, the morphology of the fault planes, and the theoretical ideas about the discrete nature of the fault wall displacement along uneven contact surfaces. It is taken into account that the walls of the fault, due to the asperity types “ridge” and “sag”, form contacts of the “ridge–ridge” and “ridge–sag” patterns. This study examines the situation where gas pressure in the fracture space can sharply increase due to the jerky displacement of reactivated tectonic fault walls with a rough fault plane. It is assumed that, in the first phase of reactivation, the fracture space expands as a result of the displacer opening and the fact that fault plane asperities engage in the “ridge–ridge” type of contact. With the subsequent relative displacement of the fault walls in the second phase of reactivation, the contact changes into the “ridge–sag” type and a sharp reduction in the fracture space volume occurs. It is shown that a “piston effect” emerges due to the reduction in fracture space and that it promotes an increase in gas pressure and stimulates gas movement to the surface through the available channels. The resulting “piston effects” may also be responsible for the suddenly raised gas content recorded in the air of surface structures and recurrent mine gas migration onto the surface. The findings expand our understanding of the sudden gasification of the earth surface and living spaces in coal mining areas and contribute to the understanding of the gas migration process, thereby helping to monitor hazards.

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Potential of CBM as an Energy Vector in Active Mines and Abandoned Mines in Russia and Europe

Cited by 8 publications

References 47 publications

Optimization of Equipment Operation in Power Systems Based on the Use in the Design of Frequency-Dependent Models

Optimization of Equipment Operation in Power Systems Based on the Use in the Design of Frequency-Dependent Models

Determination of the miners’ individual injury risk as a result of the dynamic manifestation of rock pressure

Study of the Migrating Mine Gas Piston Effect during Reactivation of Tectonic Faults

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