Methane Emissions Trending at Integra Underground Coal Mine

Ian, Pettigrew (2008). Methane Emissions Trending at Integra Underground Coal Mine B.Sc Thesis, School of Engineering, The University of Queensland.

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Author Ian, Pettigrew
Thesis Title Methane Emissions Trending at Integra Underground Coal Mine
School, Centre or Institute School of Engineering
Institution The University of Queensland
Publication date 2008
Thesis type B.Sc Thesis
Supervisor Basil Beamish
Total pages 67
Language eng
Subjects 091405 Mining Engineering
Formatted abstract
Significant amounts of research have been conducted into determining the total desorbable gas content for a given mining scenario. However, the time dependent nature of these emissions is not well understood. This project aims to define a method for predicting emission rates from goafs in underground coal mines. This method is based on the historical emissions trends of a goaf region with a known total desorbable gas content. It further aims to apply this method specifically to methane emissions at Integra Underground Coal Operations.

Lunarzewski (2004) developed two general forms of equations to describe rate of gas emissions from abandoned mines. This theory has been applied to an operating mine context and therefore this research is experimental to determine whether or not this method of analysis is applicable to this context.
Methane recovery rates experienced by a methane power plant on site are lower than predicted values, possibly because methane emissions are occurring more slowly than predicted. Therefore, developing equations which quantify emission rates over time could have significant benefits to the future gas management at Integra Underground Coal Operations.

To develop methane emissions trends, methane flow rate data over a three year period was analysed to define trendlines for the mine’s methane emissions. A logarithmic and exponential equation was developed for short term and long term emissions results respectively. The results contradicted expected trends and appear to be erroneous. This highlighted the level of detail required when collecting data. It also identified several areas where methodology of the research may be improved upon to perform a more accurate analysis.
Keyword Methane Emission

Document type: Thesis
Collection: UQ Theses (non-RHD) - UQ staff and students only
Citation counts: Google Scholar Search Google Scholar
Created: Tue, 30 Sep 2014, 16:05:37 EST by Ahmed Taha Siddiqui on behalf of Scholarly Communication and Digitisation Service