Structural mechanics simulations associated with underground coal gasification. [Approx. 40 refs]

Technical Report · Sat May 01 04:00:00 EDT 1976

OSTI ID:7355857

Advani, S H; Lin, Y T

A description is presented on analytical simulations of the structural and thermal responses associated with the Longwall generator concept of underground coal gasification (UCG). The work includes global and micro/macro modeling of the UCG mechanical parameters. Dynamic thermal and stress response solutions are obtained for boundary value problems represented by (1) a radially expanding circular cavity and (2) a line drive in a coal seam. Static two dimensional and three dimensional stress, displacement, and temperature fields are presented for cylindrically circular and elliptic cavities in non-layered and layered media with application to roof collapse and subsidence. The micro/macro model investigations include thermorheological representation of Pittsburgh coal and stress fracture characteristics with particular emphasis on stress concentration, fracture permeabilities, fissure response, and fluid flow coupling.

• Research Organization: West Virginia Univ., Morgantown (USA). Dept. of Mechanical Engineering and Mechanics
• OSTI ID: 7355857
• Report Number(s): MERC/CR-76/1
• Country of Publication: United States
• Language: English

Related Subjects

01 COAL, LIGNITE, AND PEAT
010404* -- Coal
Lignite
& Peat-- Gasification
BIBLIOGRAPHIES
COAL DEPOSITS
COAL GASIFICATION
COAL RESERVES
DOCUMENT TYPES
ENVIRONMENTAL EFFECTS
FAILURES
FRACTURES
GASIFICATION
GEOLOGIC DEPOSITS
IN-SITU GASIFICATION
IN-SITU PROCESSING
PROCESSING
RESEARCH PROGRAMS
RESERVES
RESOURCES
SIMULATION
STRESSES