Zobrazeno 1 - 10
of 10
pro vyhledávání: '"Johan H. Marais"'
Publikováno v:
Mining, Vol 4, Iss 2, Pp 401-416 (2024)
This article explores operational challenges in mining, with a focus on energy management amid depleting ore grades and rising costs. The urgent need for innovative energy management systems and strategies is highlighted by analyzing the unexplored l
Externí odkaz:
https://doaj.org/article/c3f4c933d61146d0971b0cc546890f4c
Publikováno v:
Process Integration and Optimization for Sustainability. 6:819-836
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::965fdb497e8b35ed9c4972811e953734
https://doi.org/10.1007/s41660-022-00237-3
https://doi.org/10.1007/s41660-022-00237-3
Publikováno v:
Sustainable Production and Consumption. 17:126-135
Compressed air is a vital source of energy for deep mines. It is therefore alarming that leaks, wastages, and losses are the highest contributing factors to the deterioration of compressed air network efficiency. However, locating these losses in the
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::787f9cfef207a00f536ee34ff1790059
https://doi.org/10.1016/j.spc.2018.09.010
https://doi.org/10.1016/j.spc.2018.09.010
Publikováno v:
Journal of Energy in Southern Africa, Vol 30, Iss 4 (2019)
Journal of Energy in Southern Africa, Volume: 30, Issue: 4, Pages: 26-40, Published: NOV 2019
Journal of Energy in Southern Africa, Volume: 30, Issue: 4, Pages: 26-40, Published: NOV 2019
In the past the cost of electricity was not a significant concern and was not common practice for mining companies to consider peak time-of-use (TOU) tariffs for their shift schedules. It has become more prevalent, as TOU tariffs continue increasing,
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::9f0fc9b9b4ed63d7fe244cbde56683f2
https://journals.assaf.org.za/index.php/jesa/article/view/5675
https://journals.assaf.org.za/index.php/jesa/article/view/5675
Mine compressed air systems are inefficient and complex to analyse. There is no clear method which can be used to characterise the total performance of the supply side system in terms of the air supplied and energy consumed. A simplified and unbiased
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::0925cc691b1f8ab61cd5c3b3834906dc
https://hdl.handle.net/10394/31876
https://hdl.handle.net/10394/31876
Publikováno v:
2017 International Conference on the Industrial and Commercial Use of Energy (ICUE).
A load management strategy was developed and implemented on closed and semi-closed loop mine surface cooling systems. Load reduction tests were conducted during the Eskom evening peak period to verify the strategy. The underground temperatures and re
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::5ca42121236590d3f68a4b8aa8937e97
https://doi.org/10.23919/icue.2017.8068001
https://doi.org/10.23919/icue.2017.8068001
Publikováno v:
2017 International Conference on the Industrial and Commercial Use of Energy (ICUE).
In 2016, South Africa's, steel production was down by 4.5% year-on-year. This was due to both a struggling economy and a world surplus in steel supply. Therefore, in order for South Africa to remain competitive in the global steel market, the current
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::376011dd2fd74933ea258e7b74201491
https://doi.org/10.23919/icue.2017.8067989
https://doi.org/10.23919/icue.2017.8067989
Publikováno v:
2017 International Conference on the Industrial and Commercial Use of Energy (ICUE).
Numerous initiatives exist for the efficient energy management of mine compressed air systems. Most of these initiatives are also part of large projects that provide a definite impact within short timeframes. However, some of these implemented initia
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::e3df23e580d921cb9c38dceed6ffff3c
https://doi.org/10.23919/icue.2017.8067994
https://doi.org/10.23919/icue.2017.8067994
Publikováno v:
2017 International Conference on the Industrial and Commercial Use of Energy (ICUE).
The South African industrial sector is under significant financial pressure and need to reduce production costs to remain competitive in the global and local market. Some steel plants use reheating furnaces to reheat materials before hot rolling. The
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::785fdc3179655acea6e56169234280ff
https://doi.org/10.23919/icue.2017.8067988
https://doi.org/10.23919/icue.2017.8067988
Publikováno v:
2015 International Conference on the Industrial and Commercial Use of Energy (ICUE).
The efficient usage of electricity in the South African water industry has not been a priority due to the relatively low cost of electricity in the past. The situation has changed over the past years as a result of the rapid increase in electricity c
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::69216bb1d4a994376bc5629026e3c4a7
https://doi.org/10.1109/icue.2015.7280243
https://doi.org/10.1109/icue.2015.7280243