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Energies 2012, 5(6), 2017-2029; doi:10.3390/en5062017
Article

An Overview of Two Years of Continuous Energy Optimization at the Velenje Coal Mine

1
,
2,* , 3
 and
4
1 Premogovnik Velenje d.d., Velenje 3320, Slovenia 2 Faculty of Mining and Geology, University of Belgrade, Belgrade 11000, Serbia 3 PV Invest d.o.o., Velenje 3320, Slovenia 4 Faculty of Natural Sciences and Engineering, University of Ljubljana, Ljubljana 1000, Slovenia
* Author to whom correspondence should be addressed.
Received: 12 April 2012 / Revised: 4 June 2012 / Accepted: 13 June 2012 / Published: 20 June 2012
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Abstract

The Velenje Coal Mine (VCM) is one of the largest and the most modern underground coal mines in Europe. Although the coal mining industry produces coal as an energy source, it is also uses a lot of energy for its own operation and support processes. At this time of volatile energy prices and more and more strict environmental emission requirements, optimizing energy consumption plays an important role in good business performance. To track the consumption of electricity, district heating, drinking water and compressed air at the VCM a detailed energy monitoring methodology was developed and established in July 2010. The essential element of the presented monitoring system is a software application named “Central System for Regulation of Energy” (CSRE). The purpose of the CSRE is to control energy processes from a distance, take measures for economical and efficient use of energy, as well as to assist in maintenance. Such monitoring allows extensive comparisons between different energy sources consumption and enables correct measures to be taken to reduce the difference between the target and actual consumption of energy in VCM. With established real-time monitoring system, it is possible to look at mining processes and see where energy is being used inefficiently.
Keywords: mining; underground lignite exploitation; energy consumption; energy optimization; Central System for Regulation of Energy mining; underground lignite exploitation; energy consumption; energy optimization; Central System for Regulation of Energy
This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

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Medved, M.; Ristovic, I.; Roser, J.; Vulic, M. An Overview of Two Years of Continuous Energy Optimization at the Velenje Coal Mine. Energies 2012, 5, 2017-2029.

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