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dc.contributor.advisorBrune, Jürgen F.
dc.contributor.advisorBogin, Gregory E.
dc.contributor.authorHonorato Pinheiro Junior, Hamilton
dc.date.accessioned2021-09-13T10:17:36Z
dc.date.accessioned2022-02-03T13:23:14Z
dc.date.available2021-09-13T10:17:36Z
dc.date.available2022-02-03T13:23:14Z
dc.date.issued2021
dc.identifierHonoratoPinheiroJunior_mines_0052N_12219.pdf
dc.identifierT 9178
dc.identifier.urihttps://hdl.handle.net/11124/176481
dc.descriptionIncludes bibliographical references.
dc.description2021 Summer.
dc.description.abstractThe formation of explosive gas zones (EGZs) is a critical problem in longwall coal mines. The investigation of how EGZs might form currently relies on Computational Fluid Dynamics (CFD) models, which have limitations around long solution times and availability of certain validation data in a longwall mine. Physical, scaled models are an alternative to investigating dynamic fluid behavior under complex scenarios that range from aircraft design to airway investigation. Scaled modeling requires extensive dimensional analysis evaluation to replicate complex airflow phenomena adequately. This work presents design and manufacturing considerations to build a 1:40 scaled version of a longwall coal mine to investigate mine ventilation strategies and the formation of EGZs. The physical model presented is the only known scaled model of a longwall coal mine built on a modular design and capable of simulating different ventilation strategies, longwall face advance, and shearer motion. The physical model has a mine-wide atmospheric monitoring system (AMS) capable of measuring airflow speed and gas concentrations in the air courses, longwall face, and gob region. Initial experimental data results prove the model to be consistent with CFD models and published ventilation data of longwall coal mines. The physical model captured the trends of flow leakage and simulated methane accumulation across the longwall face compared to published data of actual mines and CFD models.
dc.format.mediumborn digital
dc.format.mediummasters theses
dc.languageEnglish
dc.language.isoeng
dc.publisherColorado School of Mines. Arthur Lakes Library
dc.relation.ispartof2021 - Mines Theses & Dissertations
dc.rightsCopyright of the original work is retained by the author.
dc.subjectmethane
dc.subjectscale modelling
dc.subjectmine ventilation
dc.subjectlongwall
dc.title1:40 scaled physical model of a longwall coal mine to investigate mine ventilation and the formation of explosive gas zones, A
dc.typeText
dc.contributor.committeememberMiller, Hugh B.
dc.contributor.committeememberKaunda, Rennie
thesis.degree.nameMaster of Science (M.S.)
thesis.degree.levelMasters
thesis.degree.disciplineMining Engineering
thesis.degree.grantorColorado School of Mines


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