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| Last Updated: :22/03/2024

BIBLIOGRAPHY

Title : LOW CARBON COAL MINING – A CONTRADICTION OR AN OPPORTUNITY?
Subject : Environmental Impact
Volume No. : NA
Issue No. : 
Author : J.G. Bennett, G.A. Kennedy, P.J. Foster, N.C. Williams, D.L. Cluff, T.P. Clifford
Printed Year : 2013
No of Pages  : 14
Description : 

Coal consumption has increased globally by 57% over the last ten years. Underground mining typically provides coal of the highest calorific value and accounts for the greatest proportion of production. Despite a negative environmental image and indeed impact, this industry appears likely to thrive on the global scale for many years to come. Such mining consumes large amounts of electricity with implications for carbon dioxide emission at power plants and emits substantial quantities of the powerful greenhouse gas methane. In response to this significant carbon footprint, the European Union has funded research to examine the potential for a range of improvement technologies in a project entitled Low Carbon Mine Site Energy Initiatives (LOWCARB). Coal properties related to seams and mines, together with longwall characteristics, provide the basis for research into modelling optimally efficient methane drainage with a view to assisting mining as well as maximising electricity generation at surface and hence oxidation of the methane. Possible systems for the oxidation of very low concentration methane in ventilation air, which contributes the greatest greenhouse gas impact due to the volumes emitted, have been studied and modelled. Simulation and investigation of intelligent optimisation of electricity demand patterns provide the basis for reducing the demand peaks at mines and hence the cost and ultimately the carbon footprint of a mine, while specific investigations have been undertaken into ventilation efficiency at an unusually challenging mine and simulation of mine water pumping in order to develop an innovative method to monitor pumping systems efficiency. For post-mining use, the potential of disused shafts for compressed air energy storage to improve the operation of future electricity grids with high renewable energy penetration by reducing peak generation capacity requirements has been studied. While underground coal mining will always by definition be related to a significant carbon footprint, this paper provides an overview of a set of initiatives that can make a positive environmental impact while controlling costs across a huge global industry.

 

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