Quantitative Analysis of the Influence of Coal Mining on the Underflow Zone of Rivers by Using Double Integro-differential Equations DOI Creative Commons
Yuan Wan, Chen Zhang, Jing Wang

et al.

Applied Mathematics and Nonlinear Sciences, Journal Year: 2023, Volume and Issue: 8(2), P. 1325 - 1338

Published: April 28, 2023

Abstract The global ecological environment is fragile, and large-scale coal mining has accelerated the loss of water resources, but it difficult to quantify its impact. Studies have found that a particularly large impact on underflow zone rivers, blind affects environmental damage loses volume river. lack compensation mechanism for caused by often exacerbates province’s fragile environment. This paper analyzes prediction First all, determine area mine collect data. Then, lost was calculated as predicted score using double integro-differential equation. Finally, GA-BiLSTM model proposed predict capacity. experimental results show mean absolute error (MAE), root square (RMSE), pass rate are 11.78/%, 24.87/%, 92/%, respectively, average relative only 9.98%. Compared with BP, SVM, LSTM, Bi-LSTM neural network better accuracy. also good reliability practicability, which can provide new idea method analysis

Language: Английский

Green Transformation of Mining towards Energy Self-Sufficiency in a Circular Economy—A Case Study DOI Creative Commons
Małgorzata Magdziarczyk, Andrzej Chmiela, Weijian Su

et al.

Energies, Journal Year: 2024, Volume and Issue: 17(15), P. 3771 - 3771

Published: July 31, 2024

This article presents the concept of green transformation coal mining sector. Pump stations that belong to Spółka Restrukturyzacji Kopalń S.A. (SRK S.A., Bytom, Poland) pump out approximately 100 million m3 mine water annually. These protect neighboring mines and lower-lying areas from flooding subsurface aquifers contamination. The largest cost component maintaining a pumping station is expenditure for purchasing electricity. Investment towards renewable energy sources will reduce environmental footprint operation by reducing greenhouse gas emissions. liquidation an exemplary site in context circular economy proposing development/revitalization presented. involves construction complex consisting photovoltaic farms combined with efficient storage form hydrogen produced electrolysis. For this purpose, potential liquidated sites be utilized, including use pumped wastewater. conceptual. In order reach stated objective, body literature legal regulations was analyzed, empirical study conducted. Various scenarios have been proposed. options presented provide full or nearly self-sufficiency proposed concept. effect applying any option upgrading could result creation jobs are alternatives guarantee asset management.

Language: Английский

Citations

1

Method of estimating the expenditures required to carry out the liquidation processes of a mining site DOI Open Access
Małgorzata Magdziarczyk, Janusz Smoliło, Andrzej Chmiela

et al.

Scientific Papers of Silesian University of Technology Organization and Management Series, Journal Year: 2023, Volume and Issue: 2023(182), P. 201 - 216

Published: Jan. 1, 2023

Purpose: This paper proposes a new method for the initial estimation of expenditures necessary to carry out mine decommissioning processes. Design/methodology/approach: A tool preliminary designed liquidation process was used, based on selected estimated component costs coal liquidation. In designing method, certain functional similarity analyzed mining plants assumed. Findings: Estimation at stage design work is important support company process. The described statistical evaluation and allows an analysis independent scale task. forecast can be obtained once least one processes have been correctly determined. Adding each additional cost improves accuracy estimation. Practical implications: key issue Polish energy sector meet requirements European Green Deal achieve climate neutrality by 2050. Just Transition moving away from consumption, considering needs concerns communities living in regions. It involves economy, which, accordance with adopted Sectoral Agreement, assumes that last will closed 2049. hard mines complex lengthy process, but above all requires large economic outlays. Originality/value: has proposed. proposed used as possible other or parts mines. useful auxiliary engineering restructuring post-mining assets. Keywords: management, companies, mine, decision-making, multi-criteria analysis. Category paper: Research paper.

Language: Английский

Citations

2

The importance of resources in achieving the goals of energy companies DOI Creative Commons
Anna Chwiłkowska-Kubala, Kamila Malewska, Katarzyna Mierzejewska

et al.

Engineering Management in Production and Services, Journal Year: 2023, Volume and Issue: 15(3), P. 53 - 68

Published: Sept. 1, 2023

Abstract The fundamental transformation of the global energy sector challenges Polish companies to define new organisational goals. To a large extent, these objectives determine an company’s competitive position and ability develop in long term. However, achieving set goals requires adequate resources. This paper mainly aims identify assess resources used achieve companies. Based on literature review data collected from 110 companies, authors identified assessed for their study confirmed that pursued by are interrelated. Analysis results basic postulated showed economic goals, such as “market share growth”, “implementation innovative solutions”, “quality products/services”, among most important. held important implementing separate Human received highest rating were considered greatest importance implementation “sector development”, “uninterrupted supply”, “sustainable development”. assesses discusses characteristics companies’ contribution this is highlighted main practical implication article stress existence links between individual highlight different resource categories they possess specific objective bundles.

Language: Английский

Citations

1

Modified method for assessing the required expenditures and estimated time of hard coal mine liquidation DOI Creative Commons
Andrzej Chmiela, Małgorzata Wysocka, Adam Smoliński

et al.

Journal of Sustainable Mining, Journal Year: 2024, Volume and Issue: 23(4), P. 337 - 349

Published: June 13, 2024

The restructuring of hard coal mining requires significant budgetary expenditures. A comprehensive scientific approach may facilitate the rationalisation and minimisation mine closure costs. This study proposes a method for preliminary estimation costs time required potential liquidation mine. In addition to literature review, statistical analysis case study, personal interviews were conducted with individuals direct management over restructuring, reclamation processes pertaining mines undergoing closure.

Language: Английский

Citations

0

Comprehensive Method for Estimating the Time and Expenditures Required for Mine Liquidation Processes of Business Processes DOI Creative Commons
Małgorzata Magdziarczyk, Andrzej Chmiela, Adam Smoliński

et al.

Management Systems in Production Engineering, Journal Year: 2024, Volume and Issue: 32(2), P. 192 - 201

Published: June 1, 2024

Abstract The European Green Deal (EU Deal) has set the direction for EU’s energy transition towards climate neutrality by 2050. In Poland, this means moving away from extraction and use of coal. Social Contract Mining Industry signed in 2021 states necessity last mine closure 2049. Mine is a complex, lengthy costly process. A complex scientific solution may concern rational operations minimization costs. This article presents system elementary assessment potential time cost coal liquidation. Estimating costs early design phase an key aspect supporting company dealing with closure. aim research was to improve tool assessing liquidation price. extended proposed formed on base statistics past mining institution processes. method can, minor modifications, be used each restructuring revitalizing task industries process At core developed preliminary data analysis, which should confirmed multi-criteria estimation planned

Language: Английский

Citations

0

Comparative Analysis of Domestic Production and Import of Hard Coal in Poland: Conclusions for Energy Policy and Competitiveness DOI Creative Commons
Izabela Jonek-Kowalska,

Wieslaw Grebski

Energies, Journal Year: 2024, Volume and Issue: 17(20), P. 5157 - 5157

Published: Oct. 16, 2024

In many energy policies, including Poland’s, environmental priorities clash with the issue of security. With these contradictions in mind, main objective article is a comparative analysis domestic production and imports hard coal Poland formulation conclusions for policy competitiveness. The covers years 2018–2023 concerns three issues: volume directions to Poland, qualitative price competitiveness coal, possibility substituting imported coal. research used statistical analysis. Indicators structure dynamics as well were also used. shows that importers quite diverse includes geographic directions. However, until 2021, it was dominated by Russia, followed Colombia, indicating fairly homogeneous supply market continuing tendency depend on single importer. Analysis confirms existence balance industrial resources whose quality parameters (sulfur content, ash calorific value) are comparable better than those Polish can compete terms price. From 2021 2023, clearly cheaper foreign above circumstances, difficult unequivocally assess reasons importing justify dependence external suppliers. This especially relevant since mining 2020–2023 remains stable (periodically even increasing), which does not indicate decisive shift away from an resource.

Language: Английский

Citations

0

Integrated Evaluation of Financial Risk in Coal Industry Restructuring: A Model of Linear Regression and PCA DOI Open Access

Xianping Yuan,

Ziqiu Zhang

Computational Intelligence and Neuroscience, Journal Year: 2022, Volume and Issue: 2022, P. 1 - 9

Published: Oct. 7, 2022

Aiming at the integrated evaluation problem of financial risk in coal industry restructuring, a model linear regression and PCA is put forward. This paper studies univariate correlation multivariable mixed between main business income book value fixed assets nonfixed statements listed companies gives function variables by using variety linear, nonlinear, binary methods. It also points out that enterprises China are basically stage increasing scale present can continue to achieve rapid increase profits through mergers acquisitions other expansion At same time, it concluded assets, namely, intangible human capital, contribute more China, which objectively proves correctness our thinking developing knowledge economy.

Language: Английский

Citations

1

Quantitative Analysis of the Influence of Coal Mining on the Underflow Zone of Rivers by Using Double Integro-differential Equations DOI Creative Commons
Yuan Wan, Chen Zhang, Jing Wang

et al.

Applied Mathematics and Nonlinear Sciences, Journal Year: 2023, Volume and Issue: 8(2), P. 1325 - 1338

Published: April 28, 2023

Abstract The global ecological environment is fragile, and large-scale coal mining has accelerated the loss of water resources, but it difficult to quantify its impact. Studies have found that a particularly large impact on underflow zone rivers, blind affects environmental damage loses volume river. lack compensation mechanism for caused by often exacerbates province’s fragile environment. This paper analyzes prediction First all, determine area mine collect data. Then, lost was calculated as predicted score using double integro-differential equation. Finally, GA-BiLSTM model proposed predict capacity. experimental results show mean absolute error (MAE), root square (RMSE), pass rate are 11.78/%, 24.87/%, 92/%, respectively, average relative only 9.98%. Compared with BP, SVM, LSTM, Bi-LSTM neural network better accuracy. also good reliability practicability, which can provide new idea method analysis

Language: Английский

Citations

0