Multiple artificial geothermal cracks in a hot dry rock mass for extraction of heat

Journal Article · Sat Jun 01 00:00:00 EDT 1985 · J. Energy Resour. Technol.; (United States)

DOI:https://doi.org/10.1115/1.3231189· OSTI ID:6210364

Shibuya, Y; Abe, H; Sekine, H; Takahashi, Y

Theoretical analysis is made for multiple geothermal cracks. A periodic array of two-dimensional cracks is considered as a model of the multiple geothermal cracks, and is analyzed on the basis of the two-dimensional theory of quasi-static thermoelasticity. The singular integral equations are derived from the boundary conditions, and they are solved by applying the combination of inversion formula and collocation method. Numerical results for the fluid temperature at an outlet, the rock mass temperature, the shape of the geothermal cracks and the stress distribution around the geothermal cracks are shown in graphs.

• Research Organization: Department of Mechanical Engineering for Production, Akita University, Akita
• OSTI ID: 6210364
• Journal Information: J. Energy Resour. Technol.; (United States), Vol. 107:2
• Country of Publication: United States
• Language: English

Related Subjects

15 GEOTHERMAL ENERGY
HOT-DRY-ROCK SYSTEMS
HEAT TRANSFER
THERMOELASTICITY
BOUNDARY CONDITIONS
CRACKS
GEOLOGIC FISSURES
GEOTHERMAL GRADIENTS
GRAPHS
INTEGRAL EQUATIONS
ROCK MECHANICS
SHAPE
STRESSES
ELASTICITY
ENERGY SYSTEMS
ENERGY TRANSFER
EQUATIONS
GEOLOGIC STRUCTURES
GEOTHERMAL SYSTEMS
MECHANICAL PROPERTIES
MECHANICS
TEMPERATURE GRADIENTS
TENSILE PROPERTIES
150200* - Geology & Hydrology of Geothermal Systems