Doctoral Dissertations

Author

Xichen Zhang

Abstract

"Underground mine fires have always been a major concern. Past events show that fire poses a severe safety hazard to mine workers, and causes tremendous economic loss to the mine and surrounding communities. A good understanding of the interaction between a mine fire and the mine ventilation network is crucial for effective fire emergency planning and hazard control. Unfortunately our understanding of a fire is still limited due to the complex nature of mine fires and a lack of adequate resource for studying them.

A new multiscale modeling approach coupling conventional 1D and 3D techniques has shown to be a useful tool to study a mine fire with the latter providing boundary conditions to the former and vice-versa. During simulation, the !D and 3D models dynamically exchange information at the interfaces and operate in parallel. This method has the advantage of low computational complexity when compared to a full 3D model, but provides the same accuracy.

Two cases studies were used to demonstrate that the multiscale model was a valid technique for simulating a complex mine fire and the accompanying airflow behavior such as throttling and buoyancy effects during a fire emergency. In both cases, the multiscale model presented a result that was superior to both the full 1D model and the 3D model"--Abstract, page iii.

Advisor(s)

Tien, Jerry C.

Committee Member(s)

Yuan, Liming
Homan, Kelly
Awuah-Offei, Kwame, 1975-
Ge, Mao Chen

Department(s)

Mining and Nuclear Engineering

Degree Name

Ph. D. in Mining Engineering

Sponsor(s)

Missouri University of Science and Technology. Department of Mining Engineering

Publisher

Missouri University of Science and Technology

Publication Date

Fall 2012

Pagination

xiv, 186 pages

Note about bibliography

Includes bibliographical references (pages 173-185).

Rights

© 2012 Xichen Zhang, All rights reserved.

Document Type

Dissertation - Restricted Access

File Type

text

Language

English

Library of Congress Subject Headings

Mine fires
Mine fires -- Simulation methods
Multiscale modeling
Mine safety -- Research

Thesis Number

T 10156

Print OCLC #

843775423

Electronic OCLC #

909411303

Link to Catalog Record

Electronic access to the full-text of this document is restricted to Missouri S&T users. Otherwise, request this publication directly from Missouri S&T Library or contact your local library.

http://laurel.lso.missouri.edu:80/record=b9660374~S5

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