- Title
- Ventilation air methane: a simulation of an optimised process of abatement with power and cooling
- Creator
- Nadaraju, F. J.; Maddocks, A. R.; Zanganeh, J.; Moghtaderi, B.
- Relation
- Mining Technology: Transactions of the Institute of Mining and Metallurgy Vol. 129, Issue 1, p. 9-21
- Publisher Link
- http://dx.doi.org/10.1080/25726668.2019.1704546
- Publisher
- Taylor & Francis
- Resource Type
- journal article
- Date
- 2020
- Description
- Ventilation air methane is low concentration methane (below 1 vol. %) emitted from an underground coal mine. High ventilation air volumes circulated through the mine, ensure that the methane remains at a safe concentration. In 2016, the Australian Government reported fugitive emissions of methane from underground coal mines at approximately 19.0 million tonnes (CO2-equivalent) which was about 4.0% of Australia's national greenhouse gas emissions. Therefore, an optimised process of heat recovery from a fluidised-bed VAM abatement reactor, to produce power and cooling was studied. For a ventilation flow rate of 20 m3/s, the minimum methane concentration for a direct gas turbine was 0.45 vol. % at a reactor temperature of 630°C and compressor pressure of 1.5 bar. An indirect gas turbine process operated with a minimum methane concentration was 0.4 vol. % at a reactor temperature of 630°C, compressor pressure of 4.0 bar and turbine flow rate of 2.2 kg/s.
- Subject
- ventilation air methane; heat recovery; brayton cycle; aspen plus; absorption refrigeration; SDG 13; Sustainable Development Goals
- Identifier
- http://hdl.handle.net/1959.13/1439916
- Identifier
- uon:41067
- Identifier
- ISSN:2572-6668
- Language
- eng
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