dc.contributor.advisor |
Professor Mike O’Sullivan |
en |
dc.contributor.author |
Zarrouk, Sadiq J. |
en |
dc.date.accessioned |
2007-01-07T23:05:56Z |
en |
dc.date.available |
2007-01-07T23:05:56Z |
en |
dc.date.issued |
2004 |
en |
dc.identifier.citation |
Thesis (PhD--Engineering Science)--University of Auckland, 2004. |
en |
dc.identifier.uri |
http://hdl.handle.net/2292/293 |
en |
dc.description.abstract |
In this study we are concerned with the modelling of multi-component, multiphase
chemically reacting flows in porous media, with particular application to the
spontaneous combustion of coal and the extraction of coalbed methane.
These two related problems involve complex multiphase, multi-component flow in a
porous medium. Chemical reactions, adsorption, gaseous diffusion and changes in
porosity and permeability are important in one or both of these problems. These matters
are discussed in general in the first few chapters of the thesis.
Several models for the spontaneous combustion of coal that include the effect of a
diminishing reaction rate are investigated and a new formulation in the form of a generic
power law model is introduced.
A numerical module for modelling the spontaneous combustion of coal is described,
based on the TOUGH2 code. A new equation of state (EOS) module is developed
including realistic physical properties for all gases involved. The modified version of
TOUGH2 is used for modelling the adiabatic method for testing the reactivity of coal
samples. The results agree very well with experimental measurements for coal samples
from different mines in New Zealand and Australia.
Moisture effect on the reaction rate was then introduced to TOUGH2 using a new twophase
EOS module with water and air broken into its main components (Nitrogen,
Oxygen, Carbon dioxide and Argon).
Finally the production of methane from low rank coalbeds is investigated. A new EOS
for mixture of water and methane is developed and incorporated into the TOUGH2 code
to produce a new and versatile coalbed methane simulator. It is validated by running
some simple test problems and comparing results with those obtained with the
commercial COMET simulator. |
en |
dc.format |
Scanned from print thesis |
en |
dc.language.iso |
en |
en |
dc.publisher |
ResearchSpace@Auckland |
en |
dc.relation.ispartof |
PhD Thesis - University of Auckland |
en |
dc.relation.isreferencedby |
UoA1235954 |
en |
dc.rights |
Items in ResearchSpace are protected by copyright, with all rights reserved, unless otherwise indicated. |
en |
dc.rights.uri |
https://researchspace.auckland.ac.nz/docs/uoa-docs/rights.htm |
en |
dc.title |
SIMULATION OF COMPLEX MULTIPHASE, MULTI-COMPONENT, REACTING FLOWS IN POROUS MEDIA |
en |
dc.type |
Thesis |
en |
thesis.degree.discipline |
Engineering Science |
en |
thesis.degree.grantor |
The University of Auckland |
en |
thesis.degree.level |
Doctoral |
en |
thesis.degree.name |
PhD |
en |
dc.rights.holder |
Copyright: The author |
en |
pubs.local.anzsrc |
09 - Engineering |
en |
pubs.org-id |
Faculty of Engineering |
en |
dc.identifier.wikidata |
Q112860508 |
|