Thermoelastic solutions for in situ gasification of coal. [Ph. D. Thesis; 102 references]

Technical Report · Tue Aug 01 04:00:00 EDT 1978

OSTI ID:6424047

Wang, H F

Linear thermoelastic analyses of structural models associated with underground coal gasification (UCG) are conducted in this dissertation. Idealized crack and cavity configurations simulating the Longwall Generator concept and linked vertical wells concept of UCG are studied by deriving closed form solutions. The relevance of the proposed models and their general applications are provided. Four different isotropic, homogeneous thermoelastic models with steady-state heat conduction and prescribed constant temperature boundary conditions at the crack or cavity surface are investigated. Despite the numerous limitations inherent in the development of the analytical structural models studied here, the results provide fundamental data for the possible interpretation of cavity configurations, roof stability and related information. This research also demonstrates that the thermomechanical responses are important in the consideration of UCG processes.

• Research Organization: West Virginia Univ., Morgantown (USA)
• OSTI ID: 6424047
• Report Number(s): METC/CR-78/12
• Country of Publication: United States
• Language: English

Related Subjects

01 COAL, LIGNITE, AND PEAT
010404* -- Coal
Lignite
& Peat-- Gasification
COAL GASIFICATION
CRACKS
ELASTICITY
GASIFICATION
IN-SITU GASIFICATION
IN-SITU PROCESSING
MATHEMATICAL MODELS
MECHANICAL PROPERTIES
PHYSICAL PROPERTIES
PROCESSING
TEMPERATURE DEPENDENCE
TENSILE PROPERTIES
THERMAL CONDUCTIVITY
THERMOCHEMICAL PROCESSES
THERMODYNAMIC PROPERTIES