Дисертації з теми "Underground coal gasification"
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Perkins, Gregory Martin Parry Materials Science & Engineering Faculty of Science UNSW. "Mathematical modelling of underground coal gasification." Awarded by:University of New South Wales. Materials Science and Engineering, 2005. http://handle.unsw.edu.au/1959.4/25518.
Повний текст джерелаMortazavi, Hamid Reza. "Rubbling and structural stability of underground coal gasification reactors /." Thesis, Connect to this title online; UW restricted, 1989. http://hdl.handle.net/1773/7051.
Повний текст джерелаRoullier, Benjamin David. "Modelling the local environmental impact of underground coal gasification." Thesis, University of Nottingham, 2017. http://eprints.nottingham.ac.uk/40878/.
Повний текст джерелаGonzález, Martínez de Miguel Gerardo José. "A hydromechanically-based risk framework for CO₂ storage coupled to underground coal gasification." Thesis, University of Newcastle upon Tyne, 2014. http://hdl.handle.net/10443/2579.
Повний текст джерелаHyder, Zeshan. "Site Characterization, Sustainability Evaluation and Life Cycle Emissions Assessment of Underground Coal Gasification." Diss., Virginia Tech, 2012. http://hdl.handle.net/10919/28970.
Повний текст джерелаPh. D.
Tian, Hong [Verfasser]. "Development of a thermo-mechanical model for rocks exposed to high temperatures during underground coal gasification / Hong Tian." Aachen : Hochschulbibliothek der Rheinisch-Westfälischen Technischen Hochschule Aachen, 2013. http://d-nb.info/1035674211/34.
Повний текст джерелаNakaten, Natalie Christine [Verfasser]. "Economic competitiveness of underground coal gasification combined with carbon capture and storage in the Bulgarian energy network / Natalie Christine Nakaten." Aachen : Hochschulbibliothek der Rheinisch-Westfälischen Technischen Hochschule Aachen, 2015. http://d-nb.info/1076066712/34.
Повний текст джерелаKonstantinou, Eleni. "An experimental study on the impact of temperature, gasifying agents composition and pressure in the conversion of coal chars to combustible gas products in the context of Underground Coal Gasification." Thesis, Cardiff University, 2016. http://orca.cf.ac.uk/98615/.
Повний текст джерелаSchrier, Loren Clare. "Identification of by-products and investigation into the dechlorination mechanism of the Chemchar cocurrent flow gasification process by gas chromatography-mass selective detection /." free to MU campus, to others for purchase, 1998. http://wwwlib.umi.com/cr/mo/fullcit?p9904867.
Повний текст джерелаTrademark symbol follows Chemchar in title. Typescript. Vita. Includes bibliographical references (leaf 130). Also available on the Internet.
Otto, Christopher [Verfasser], Michael [Akademischer Betreuer] Kühn, and Thomas [Akademischer Betreuer] Kempka. "Numerical analysis of thermal, hydraulic and mechanical processes in the near- and far-field of underground coal gasification reactors / Christopher Otto ; Michael Kühn, Thomas Kempka." Potsdam : Universität Potsdam, 2017. http://d-nb.info/1218402946/34.
Повний текст джерелаSampaio, Igor Almeida. "Comportamento mecânico e acústico em arenitos submetidos ao ciclo de aquecimento e resfriamento." reponame:Biblioteca Digital de Teses e Dissertações da UFRGS, 2018. http://hdl.handle.net/10183/186130.
Повний текст джерелаWith the increasing increase of environmental restrictions, accompanied by an increasing increase in energy and raw material demand by the population that grows to frightening proportions with little evidence of their descent, they have sought to find alternatives with economic viability and reduce environmental impacts. For coal, the alternative found is Coal Gasification in Subsoil. Of the advantages found in the process, the most interesting are: operational safety and little infrastructure required, competitiveness in the price of the product generated (synthetic gas) and little management of the waste produced since the ashes are left in the underground cavities. One of the difficulties is to show the change in the mechanical and acoustic behavior of rocks and rock mass when submitted to high temperature or postoperational with the cooling of the cavities generated during the process. The rock mass, the fracture system and its mechanical properties (compressive strength and tensile strength) and physical properties (permeability and anisotropy) influence the operational design of the process. With the results obtained, a linear interdependence between the P and S velocities was possible. This same interaction was observed before and after the heating and cooling cycle with coefficient of determination (R²) of 0,9177 and 0,9472, respectively. P and S wave velocities are reduced with temperature. The reduction is more evident in the P wave with a maximum reduction of 39% of the initial value. The S wave velocity is continuously reduced from 800 ° C, from 7% to 3% of the initial velocity. The compressive strength with the triaxial tests differs from the results obtained in the uniaxial tests. The results of the tensile strength and the compressive strength showed increase and reduction of the resistance with different temperatures. The compressive strength did not show any regression with the ultrasonic velocities, while the static elasticity modulus presented an increasing linear regression with the P-wave velocity with determination coefficient (R²) of 0,7922.
Klebingat, Stefan [Verfasser], Rafig Akademischer Betreuer] Azzam, and Peter [Akademischer Betreuer] [Quicker. "Development, validation and scenario analyses of two Underground Coal Gasification (UCG) model approaches focussing on gas quality-tar production control and tar pollutant-water solubility risk prognoses / Stefan Klebingat ; Rafig Azzam, Peter Georg Quicker." Aachen : Universitätsbibliothek der RWTH Aachen, 2016. http://d-nb.info/1157122434/34.
Повний текст джерелаAbdel, Hadi Eed Abdel Hafez A. "Computer modelling of underground coal gasification." 1985. http://hdl.handle.net/1993/29216.
Повний текст джерелаMoodley, Keeshan. "Process evaluation of underground coal gasification: an exergy analysis." Thesis, 2016. http://hdl.handle.net/10539/22599.
Повний текст джерелаThis study discusses underground coal gasification (UCG) and the analysis thereof. Two main methods were used. The first is the Bond Equivalent Diagram, which gives an ideal of where operations should take place in relation to their coal and product gas compositions. This method was used to analyze several real life sites for their idealized and actual operations. The second consisted of a comparative exergy simulation study. This was done for an air-blown UCG plant with a downstream Fischer-Tropsch reactor and an oxygen-blown UCG plant with upstream air separation. The plants were analyzed by their overall exergy efficiency as well as their exergy outputs with respect to coal inputs (fuel). It was discovered that the air-blown simulation with downstream Fischer-Tropsch was the better choice from an exergy point of view due to it having higher efficiencies (1.5 for overall, 1.38 for fuel) as opposed to the oxygen-blown simulation (0.77 overall, 0.8 for fuel). This coupled with other design and safety factors led to the conclusion that the air-blown simulation was better.
MT2017
Kitaka, Richard Herbertson. "Underground coal gasification : overview of an economic and environmental evaluation." Thesis, 2011. http://hdl.handle.net/2152/ETD-UT-2011-12-4535.
Повний текст джерелаtext
Meintjies, Curtis Enrico. "A comparative life cycle assessment review of conventional pulverized coal-fired electricity generation and underground coal gasification (UCG) linked with an integrated gasification combined cycle (IGCC)." Thesis, 2011. http://hdl.handle.net/10539/10620.
Повний текст джерелаDzimba, Buyisiwe Carol. "Consideration of the criteria required for the selection of potential underground coal gasification sites in South Africa." Thesis, 2011. http://hdl.handle.net/10539/10521.
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