Issue |
E3S Web Conf.
Volume 123, 2019
Ukrainian School of Mining Engineering - 2019
|
|
---|---|---|
Article Number | 01046 | |
Number of page(s) | 9 | |
DOI | https://doi.org/10.1051/e3sconf/201912301046 | |
Published online | 22 October 2019 |
Actualization of prospects of thermal usage of groundwater of mines during liquidation
Dnipro University of Technology, Department of Hydrogeology and Engeenering Geology, 19 Yavornytskoho Ave., 49005 Dnipro, Ukraine
* Corresponding author: inkin@ua.fm
The aim of the paper is justification of the economically efficient technological scheme for development of a thermal resource of “Stashkov” mine after its closure, ensuring the maintenance of a favorable energy and ecological-hydrogeological regime in the region. A geotechnological scheme of environmentally safe usage of mine water was justified, involving water pumping up to the surface, heat removal and water reverse pumping into the seams. The suggested circulation system is characterized by an increased energy balance, since it is used to extract almost all the groundwater heat, as well as part of the heat of host rocks. In order to estimate the effectiveness of usage of this technology, calculations of usage of mine water as a source of low-potential energy in heat pumps in comparison with other alternatives (groundwater and surface water streams) using Mathcad software were performed, and it was established that this gives great conversion coefficients of mine water. A geotechnological scheme of usage of mine water was developed, which considers heat transfer, filtration direction, velocity and temperature of groundwater during pumping and removal of heat-transfer fluid from an aquifer for heating and cooling of buildings. The mechanism of heat removal in a flooded rock massif of amine during liquidation was studied with justification of environmentally safe usage of mine water.
© The Authors, published by EDP Sciences, 2019
This is an Open Access article distributed under the terms of the Creative Commons Attribution License 4.0, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
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