Heat source determination in waste rock dumps

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dc.contributor.authorBarry, JMen_AU
dc.date.accessioned2024-04-02T07:21:42Zen_AU
dc.date.available2024-04-02T07:21:42Zen_AU
dc.date.issued1997-09-29en_AU
dc.date.statistics2022-11-16en_AU
dc.description.abstractOxidation of sulfidic materials in waste rock dumps leads to a degradation in water quality and consequent environmental impacts through acid mine drainage. Predicting the pollutant loads from a dump requires the sulfidic oxidation rates be determined. Oxidation generates heat at a rate proportional to the oxidation rate. The temperature profile of the dump depends upon the distribution and magnitude of heat sources, the thermal conductivity of the dump material, heat transport mechanisms and the dump boundary conditions (heat losses and insolation). A technique originally reported [1][2] to determine the heat source distribution from a dump by solving an inverse time dependent heat conduction equation showed considerable promise. That model is extended to allow for the transport of heat by water moving downwards in the dump and to accommodate additional boundary conditions. The inverse problem is solved with regularisation. Once the heat source terms are found, the rate of sulfidic oxidation is computable. The methods described here form the basis of a software package available for use in rock dump investigations. The methods are applied to determine heat sources in sections of a stable Australian rock dump well suited to treatment by this inverse process. Results of incorporating water transport and new boundary condition in the model are reported and their effect on the predictive power of the approach discussed.en_AU
dc.identifier.citationBarry, J. M. (1997). Heat source determination in waste rock dumps. Paper presented to the Eigth Biennial Conference, Computational Techniques and Applications: CTAC97, The University of Adelaide, Adelaide, Australia, 29 September - 1 October 1997. (pp. 83-90). In Noye, J., Teubner, M., & Gill, A. (1998). Proceedings of the Eight Biennial Conference, Computational Techniques and Applications: CTAC97, the University of Adelaide, Adelaide, Australia, 29 September - 1 October 1997. Singapore: World Scientific.en_AU
dc.identifier.conferenceenddate1997-10-01en_AU
dc.identifier.conferencenameEigth Biennial Conference, Computational Techniques and Applications: CTAC97en_AU
dc.identifier.conferenceplaceThe University of Adelaide, Adelaide, Australia,en_AU
dc.identifier.conferencestartdate1997-09-29en_AU
dc.identifier.isbn9789810235192en_AU
dc.identifier.isbn9789814528412en_AU
dc.identifier.isbn9789814544733en_AU
dc.identifier.pagination83 - 90en_AU
dc.identifier.urihttps://apo.ansto.gov.au/handle/10238/15545en_AU
dc.language.isoenen_AU
dc.publisherWorld Scientificen_AU
dc.subjectHeat sourcesen_AU
dc.subjectWastesen_AU
dc.subjectRocksen_AU
dc.subjectAustraliaen_AU
dc.subjectWateren_AU
dc.subjectCoolingen_AU
dc.subjectThermal conductivityen_AU
dc.titleHeat source determination in waste rock dumpsen_AU
dc.typeConference Paperen_AU
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