Analysis on Evaluating the Concentration of Ventilated Air Methane in the Coal Mines using a Thermodynamic Approach
Authors
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Department of Petroleum & Mining Engineering, CUET, Chittagong ,BD
Akash Talapatra
Keywords:
Ventilation air methane; thermodynamic efficiency; oxidation process, decarbonization process; compression ratio.Abstract
Ventilated air methane is usually released from the mine ventilation shafts in the coal mines. It contributes in a considerable extent on the increasing of the greenhouse gas emission in the atmosphere. The mitigating approach of this methane emission to the atmosphere is dependent on the controlling and monitoring the emission of this gas. That is why the concentration of the methane gas in the ventilated air and its oxidation mechanism to convert into another carbon molecule must be evaluated. In this study, there had been tried to propose an approach by which the thermodynamic oxidation mechanism is integrated with a hot power cycle to evaluate the required energy variation and efficiency variation according the variation of methane concentration and volume. This was the main purpose of this proposed study. Not only that, but also the mass and energy applied here are balanced and after that, it is easier to get a concept about the amount of cost to utilize the ventilated air methane per unit of methane.
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References
COM SEC(2010). European Comission. http://www.ec.europa. eu/clima/policies/package/doc/sec-2010-650,part2-en.pdf.
Banerjee B.D., Singh A.K. Kispotta, J., Dhar B.B (1994): Trend of methane emission to the atmosphere from Indian coal mining, Atmospheric Environment, Vol,28,1351-1352.
Su S., Beath A., Guo H. & Mallett C. (2005): An assessment of mine methane mitigation and utilization technologies. Progress in Energy and Combustion Science. 31,123-170.
Singh A.K., Sahu J.N. & Meikap B.C. (2009): Coal mine gas uses for hazardous waste management India, Int. Jour. of Environ. & waste manage. (In press).
Lozza G. & Chiesa P. (2002): Natural gas decarbonization to reduce CO2 emissions from combined cycles-part2: steam methane forming. Jour. Od engg. for gas turb. & power, 124(1), 89-95.
Stanger R., Wall T., Spörl R., Paneru M., Grathwohl S., Weidmann M., Scheffknecht G., McDonald D., Myöhänen K. & Ritvanen J. (2015): Oxyfuel combustion for CO2 capture in power plants. Int. J. Greenh. Gas Control, 40, 55–125.
Allen D., Torres V., Thomas J. & Sillivan D. (2013): Measurements of methane emissions at natural gas production sites in the United States. Proceeding of the National Academy of Science, 110(44), 17768-17773.
Srivastava M. & Harpalani S. (2006): Systematic quantification of ventilation air methane & its evaluation as an energy source. Mining Engineering, 58,52-56.
Project report (2009): Quantification of Ventilation Air Methane from Moonidih and Sudamdih underground coal mines in India.
Su S. & Agnew J. (2006): Catalytic combustion of coal mine ventilation air methane. Fuel, 85, 1201–1210.
Xu C., Zhang Q., Xu G., Gao Y., Yang Y., Liu T. & Wang M. (2018): Thermodynamic analysis of an improved CO2-based enhanced geothermal system integrated with a coal-fired power plant using boiler cold-end heat recovery. Appl. Therm. Eng., 135, 10–21.
McPherson M.J. (1993): Surface Ventilation and environmental engineering, Chapman & Hall, London.
Duan L., Xia K., Feng T., Jia S. & Bian J. (2016): Study on coal-fired power plant with CO2 capture by integrating molten carbonate fuel cell system. Energy, 117, 578–589.
