Results 1 to 10 of about 18,203 (209)

Energy storage in underground coal mines in NW Spain: Assessment of an underground lower water reservoir and preliminary energy balance [PDF]

open access: yesRenewable Energy, 2019
Asturias Ministry of Education and Science [FC-15-GRUPIN14-067]; Asturias Ministry of Education and Science [IDI/2018/000196]
Javier Menéndez   +3 more
openaire   +4 more sources

Understanding of mineral change mechanisms in coal mine groundwater reservoir and their influences on effluent water quality: a experimental study

open access: yesInternational Journal of Coal Science & Technology, 2020
This paper presents results of an experimental study to characterize the law of mineral change of fallen rock in coal mine groundwater reservoir ant its influence on water quality.
Kai Zhang   +4 more
doaj   +2 more sources

Geologic considerations in underground coal mining system design [PDF]

open access: yes, 1981
Geologic characteristics of coal resources which may impact new extraction technologies are identified and described to aid system designers and planners in their task of designing advanced coal extraction systems for the central Appalachian region ...
Camilli, F. A.   +3 more
core   +2 more sources

Improvement of Intensive In-Seam Gas Drainage Technology at Kirova Mine in Kuznetsk Coal Basin

open access: yesEnergies, 2022
One of the ways to resolve the “green energy-economic development” dilemma, in which the coal industry is situated, is by the improvement of technologies and the integrated use of extracted resources, including methane gas as a clean energy source. Using
Sergey Slastunov   +4 more
doaj   +1 more source

Experimental determination of angle values of the rocks full displacement when undermining them by breakage headings [PDF]

open access: yes, 2017
Purpose. Experimental determination of angle changes of full displacement of rocks by removing the breakage face from the face entry in different mining and geological conditions. Methods.
Filatiev, M, Laguta, A
core   +2 more sources

Potential Evaluation of Cross-Seasonal Heat Storage of Coal Mine Underground Reservoir: A Case Study Based on Multiphysics Coupling Numerical Simulation Method

open access: yesApplied Sciences
This study explores the innovative use of post-mining subsurface voids by proposing a coal mine goaf-based underground reservoir energy storage system. By fully utilizing the geothermal potential and insulation properties of the mined-out coal seam, we ...
Zhenyu Wang   +7 more
doaj   +1 more source

Comparative study of the effects of different nanomaterials on the failure process of saturated concrete in an underground reservoir of a coal mine

open access: yesEnergy Exploration & Exploitation, 2022
The macroscopic failure of concrete used to form an artificial dam in an underground coal mine reservoir is the final manifestation of crack propagation and penetration: the mode of crack propagation is key to the safety evaluation of concrete structures.
Xianjie Hao   +5 more
doaj   +1 more source

Preliminary investigation on temperature, chemistry and isotopes of mine water pumped in Bytom geological basin (USCB,Southern Poland) as a potential geothermal energy source [PDF]

open access: yes, 2016
Mine water from both operating and abandoned mines can be used for individual space heating projects, district heating/cooling systems or for preheating air for mine ventilation.
Boyce, Adrian J.   +3 more
core   +2 more sources

Performance Evaluation of Heat Storage in a Full Operation Cycle of Cross-Seasonal Thermal Energy Storage Systems in Coal Mine Underground Reservoirs

open access: yesApplied Sciences
Coal mining has generated a large amount of underground space, which has traditionally been reused mostly as mine wastewater storage. Given the excellent thermal insulation properties of these mine reservoirs, their potential for seasonal energy storage ...
Wenying Tang   +7 more
doaj   +1 more source

Experimental study on characteristics of grounawater fracture in coalmine overlying rock

open access: yesMeitan kexue jishu, 2023
The seepage characteristics of groundwater in the overlying fissures are the key factors to be considered in the later maintenance of coal mining and goaf, especially in the underground reservoir construction area of coal mines.
Haixiang LI   +4 more
doaj   +1 more source

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