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.
Highlights
The Velenje Coal Mine (VCM) in Velenje (Slovenia) is one of the largest and most modern underground thick layer coal extraction mines in Europe
To meet our needs we have introduced Central System for Regulation of Energy” (CSRE), which enables remote monitoring, management, monitoring of the energy consumption and easy integration of additional energy systems
By using CSRE we identified optimal aeration settings, which involve specially modified aeration modes for the non-working days
Summary
The Velenje Coal Mine (VCM) in Velenje (Slovenia) is one of the largest and most modern underground thick layer coal extraction mines in Europe. Mechanized extraction of coal by the use of the long wall method was developed by VCM and it is protected by a patent [1]. The VCM is aware that today a company that is not energy efficient, cannot be commercially successful. The cost of energy consumed at the VCM is approximately 4 million Euros per year [2]. To reduce these costs we take certain measures to enable savings. In order to track the power consumption of district heating, drinking water, compressed air and electricity we began to use a monitoring system called “Central
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