The Use of 3D Simulation System in Mine Ventilation Management

Wei, Feng; Zhu, Fangping; Lv, Huiqing

doi:10.1016/j.proeng.2011.11.2313

Cited by 18 publications

(6 citation statements)

References 1 publication

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“…Thus, the aim is to initially work out the airflows using the governing equations and taking into account the characteristics of the network. The matrix form approach will provide useful data, which then could be used in mine ventilation network algorithm and system developments [9]. Equations 1 and 2 are the governing equations used for the analysis of the ventilation networks.…”

Section: Mine Ventilation Networkmentioning

confidence: 99%

“…A simulation and optimization software for mine ventilation system of underground mines was programmed [8]. The use of 3D simulation system in mine ventilation management was also reported [9]. In this paper, first the key equations used for the ventilation networks analysis in the matrix forms will be represented.…”

Section: Introductionmentioning

confidence: 99%

“…It will aim at demonstrating the difference between the approximation methods, the associated convergence properties in particular. The matrix form problem solving approach will be useful for the development of mine ventilation network algorithms [8,9]. The nature of oscillations in successive estimates and the way each method reaches the converged solution will be examined and discussed.…”

Section: Introductionmentioning

confidence: 99%

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A Comparative Study of the Iterative Numerical Methods Used in Mine Ventilation Networks

Maleki¹,

Mozaffari²

2016

ijacsa

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Abstract-Ventilation is one of the key safety tasks in underground mines. Determination of the airflow through mine openings and ducts is complex and often requires the application of numerical analysis. The governing equations used in the computation of mine ventilation are discussed in matrix forms. The aim of this paper is to compare the most frequently used numerical analysis methods, which includes Newton-Raphson and the Linear Theory. It is the challenge of this study to investigate the influence of the initial flow rates and the fans in the network. A simulated mine ventilation network is represented in order to examine the two numerical methods. The numerical results acquired from Newton-Raphson method exhibited faster rate of convergence in comparison to those of the Linear Theory method. The mine ventilation networks are less expanded, therefore, the Newton-Raphson method converges faster. On the other hand, when using computational tools and software the advantage of faster convergence becomes less important, and therefore the Linear Theory method will be more preferred.

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Section: Mine Ventilation Networkmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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A Comparative Study of the Iterative Numerical Methods Used in Mine Ventilation Networks

Maleki¹,

Mozaffari²

2016

ijacsa

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“…온도만을 지표로 하여 법적 규제를 실시하는 경우는 매 우 드물다. 이로 인하여 호주를 비롯한 광산 선진국에서 는 건구온도와 습구온도가 결합된 다양한 지표들을 적용 하고 있는 실정이다 (McPherson, 1993) (Feng et al, 2011;Eleonora et al, 2001;Duckworth et al, 1995). 선행된 연구에 따르면 다양한 열적지표들에 가장 큰 영향을 미치는 인자는 공기속도임 을 감안하여, 공기량 증대를 위한 환기망 개선 시뮬레이 션을 함께 수행하였다 (Park et al, 2014)…”

Section: 서 론unclassified

A Study on the Improvement of Temperature Environment for Domestic Deep Coal Mines

Jang¹,

Roh²,

Kim³

2015

ksmer

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For this research, a coal mine was examined that has the deepest coal mining activities in the country, in order to improve hot and humid work environment. The Ventsim 3D program was used for a simulation of ventilation network and temperature analysis. Ventilation network modeling was set up that reflected natural ventilation. Natural ventilation pressure formed between No.1 shaft and No.2 shaft, and it was calculated to be approximately 245 Pa. Based on the completed ventilation modeling, a simulation of increased ventilation was done, assuming the extension of shaft and the installation of mine doors. The simulation result showed an increased air inflow over 50% in deep mines. However, it did not affect the temperature environment of the deeper part of the mine. To improve hot and humid work environment, temperature simulation was carried out, reflecting the operation of the air cooler. According to the simulation result, it was deemed that three additional air coolers need to be installed to create the work environment with the WBGT between 25.0℃ and 27.9℃. And the length of mine duct should not exceed the maximum 800 m.

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“…He concluded that the ant colony algorithm is a very good method for solving complicated combination optimization problems. In another article, Feng et al [3] presented the use of a 3D simulation system (VENTSIM) in mine ventilation management in the Donghai Mine. They showed that the system satisfies the requirements of mine ventilation management and provides scientific and reliable data for decision-makers, which has improved the level of mine ventilation management.…”

Section: Introductionmentioning

confidence: 99%

Conditions That Determine Changing the Function of Mine Shafts in a Gassy Coal Mine—A Case Study

Szlązak,

Korzec

2024

Energies

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Ventilation plays a key role in ensuring safe exploitation in underground gassy mines. Over the years, the structure of a mine’s ventilation network changes. Therefore, it becomes necessary to construct new excavations, while some existing excavations lose their potential for future mining activity. Constructing new excavations, especially shafts, is very expensive. Therefore, mine operators are looking for solutions to ensure appropriate ventilation by reorganizing the ventilation network and using existing infrastructure, including shafts. This article presents the example of a coal mine located in the Upper Silesian Coal Basin in Poland to discuss the factors relevant to switching the function of one of the central shafts from a downcast function to an upcast one. This change is accompanied by the closure of a peripheral upcast shaft. The main aim of this change is to assess the possibility of further safe operation without the construction of new shafts. This action also results in the release of the coal currently closed in the pillar of the shaft being closed. Using a numerical model of the mine ventilation network allowed for the comparison of the considered solutions before making final decisions and implementing changes in the network. The calculations showed that it is possible to provide appropriate ventilation in the mine, but it would need to take into account certain technological assumptions, like the additional technical function of the changed shaft. This article discusses the advantages and disadvantages of modifications to the mine ventilation network, as well as their guiding principles, in the context of existing methane hazards. The procedure presented in this article can be adopted in other mine ventilation networks in which analogous modifications are considered.

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The Use of 3D Simulation System in Mine Ventilation Management

Cited by 18 publications

References 1 publication

A Comparative Study of the Iterative Numerical Methods Used in Mine Ventilation Networks

A Comparative Study of the Iterative Numerical Methods Used in Mine Ventilation Networks

A Study on the Improvement of Temperature Environment for Domestic Deep Coal Mines

Conditions That Determine Changing the Function of Mine Shafts in a Gassy Coal Mine—A Case Study

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