| Issue |
MATEC Web Conf.
Volume 354, 2022
10th International Symposium on Occupational Health and Safety (SESAM 2021)
|
|
|---|---|---|
| Article Number | 00026 | |
| Number of page(s) | 8 | |
| DOI | https://doi.org/10.1051/matecconf/202235400026 | |
| Published online | 06 January 2022 | |
Influence of ambient temperature on the efficiency of underground spot cooling system
University of Petrosani, Department of Mechanical, Industrial Engineering and Transportation, 20 Universitatii street, Petrosani, Romania
* Corresponding author: i_dosa@hotmail.com
In mine air conditioning systems, the vapour compression refrigeration cycle seems to be currently the most widespread method of artificial cooling. In literature some other methods for cooling a mine are also presented, like using free-cooling in refrigeration systems. Mine workings in Jiu Valley are using the primary and secondary ventilation system for cooling the underground. Today the activities are focused mainly on mine closure as a part of transition to the low carbon economy, and this situation brings new challenges regarding the mine ventilation system, which was designed to meet the needs of a full-scale operation. As a result, locally ambient temperatures can rise, and spot cooling systems can be used, in order to cool the air. Such a system has been considered and calculations have been made to evaluate its thermal efficiency at different ambient temperatures.
© The authors, published by EDP Sciences, 2022
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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