Numerical study of the Martelange mine to be used as underground reservoir for constructing an Underground Pumped Storage Hydropower plant

Pujades, Estanislao; Orban, Philippe; Archambeau, Pierre; Erpicum, Sébastien; Dassargues, Alain

doi:10.5194/adgeo-45-51-2018

Cited by 9 publications

(3 citation statements)

References 20 publications

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“…This storage system pumps water from underground to the upper reservoir, storing excess in the form of potential energy. In periods when energy is needed, the water stored in the upper reservoir is transmitted to the underground reservoir and electricity is produced [35]. In underground pumped hydroelectric power plants, water transmission is provided by a pressurized well.…”

Section: Underground Pumped Hydroelectric Storagementioning

confidence: 99%

An Evaluation of Pumped Hydroelectric Storage Systems

Oymak

Tür

2022

International Journal of Innovative Engineering Applications

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In smart grids, storage systems are needed to increase the number of renewable energy sources connected to distribution systems and to ensure the continuity of energy. By supporting the system elements, energy storage can provide many services such as energy time shifting, interruption control, ensuring continuity in transmission and power quality improvements. In smart grid applications, difficulties are encountered in energy storage due to various problems such as charge/discharge, safety, size and cost. For this reason, energy storage systems should be developed for energy capacity, control and protection that can increase storage performance. Since there are interruptions and waves in renewable energy sources such as wind and solar, batteries are used for storage. In order to expand the use of clean energy and to ensure energy continuity, mechanical storage methods in large powerful systems have been emphasized. Storage studies have been carried out to increase efficiency, provide flexibility in electrical systems, reduce costs and improve storage time, and reduce power fluctuations. In this study, pumped hydroelectric storage plants, which is one of the storage methods, were examined. Advantages and disadvantages of pumped storage hydroelectric system are mentioned and hybrid pumped hydro storage is explained. Its economic contribution is also briefly mentioned. This storage method of PHES has also been found to be hybrid systems that can be connected to variable speed turbines, groundwater, seawater and renewable energies to increase efficiency, reduce costs and save space. Among these systems, it has been observed that the system in which solar and wind are used as a hybrid is also advantageous in providing high profitability in the energy market. Thanks to its integration with the sun and wind, carbon emissions are reduced.

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Section: Underground Pumped Hydroelectric Storagementioning

confidence: 99%

An Evaluation of Pumped Hydroelectric Storage Systems

Oymak

Tür

2022

International Journal of Innovative Engineering Applications

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“…A drawback of this configuration is that hydrochemical related issues and groundwater exchanges could further raise costs and affect the system's performances [73]. The soil on-site in the Martelange mine is slate.…”

Section: The Quarry Of Martelange Case Studymentioning

confidence: 99%

Underground Pumped Storage Hydropower Case Studies in Belgium: Perspectives and Challenges

et al. 2020

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To avoid the geographical and topographical prerequisites of the conventional pumped hydro energy storage, the use of underground cavities as water reservoirs allows countries without steep topography, such as Belgium, to increase the potential of the energy storage capacity. Belgium abounds in disused mines and quarries convertible into water basins. In this article, two Belgian case studies are presented and discussed for their singularity. A slate quarry in Martelange is discussed in technical aspects proposing three operating scenarios. Moreover, a preliminary economic analysis of the underground pumped storage system and a greenhouse gas emission evaluation for the storage system’s lifetime are presented. The analysis for a 100 MW power plant estimates a total initial investment of over 12 million euros and two million of CO2 avoided over its lifetime. This article also proposes the use of the coal mine 500 m deep of Pérronnes-lez-Binche. The mine representation discussed here offers a high energy capacity, but the substantial head drop (from about 500 to 200 m) challenges the selection of the hydraulic turbomachinery. A 1D simulation computed in SIMSEN draws out the behaviour of the unusual hydraulic configuration of turbines in series.

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“…For example, Daliuta coal mine uses mine water as a source of water for working face production and dust spraying [13][14][15][16][17]. Underground reservoirs in coal mines can also build pumped storage power stations to supply electricity-using equipment [18][19][20][21][22][23]. The abundant water, heat and space resources of underground coal mine reservoirs can be used to develop low-enthalpy geothermal resources [10,24,25].…”

Section: Introductionmentioning

confidence: 99%

Research on the Capacity of Underground Reservoirs in Coal Mines to Protect the Groundwater Resources: A Case of Zhangshuanglou Coal Mine in Xuzhou, China

Zhang

Luo

et al. 2023

Water

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This study analyzes the ability of coal mine underground reservoirs to protect groundwater resources. As the demand for coal mining continues to increase, the potential impact on groundwater resources around mines has become a growing problem. Underground water reservoirs, also known as coal mine underground reservoirs, have been constructed as a solution to protect water wastage in mining operations. However, there is a lack of awareness related to the ability of underground water reservoirs in mines to protect groundwater resources. In this study, we used FLAC3D software to analyze the formation process, water storage volume, and central storage location of the underground water reservoir in Zhangshuanglou Coal Mine. The results show that the damaged volume is 3.39 × 106 m3, and the groundwater resources that can be protected by coal mine underground reservoirs in the study area amount to 1.98 × 105 m3. We found that the storage capacity of underground reservoirs is more significantly affected by the extent of mining, which can be expressed as y = 49,056.44 + 255.75x + 1.46x2 (R2 = 0.995) (x ≠ 0). Additionally, the water storage location obtained through simulation can provide a reference for the construction of underground reservoir regulation and water storage projects. The results of the water quality analysis indicate that the concentrations of SO42− decreased by 42% with the closure of the mining area, and the pH also gradually converged to neutral. This highlights the significant role of underground water reservoirs in coal mines in promoting green production and protecting water resources and the environment.

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Numerical study of the Martelange mine to be used as underground reservoir for constructing an Underground Pumped Storage Hydropower plant

Cited by 9 publications

References 20 publications

An Evaluation of Pumped Hydroelectric Storage Systems

An Evaluation of Pumped Hydroelectric Storage Systems

Underground Pumped Storage Hydropower Case Studies in Belgium: Perspectives and Challenges

Research on the Capacity of Underground Reservoirs in Coal Mines to Protect the Groundwater Resources: A Case of Zhangshuanglou Coal Mine in Xuzhou, China

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