RESEARCH PAPERS: Rock Mechanics/Drilling Mechanics

Multiple Artificial Geothermal Cracks in a Hot Dry Rock Mass for Extraction of Heat

[+] Author and Article Information
Y. Shibuya, Y. Takahashi

Department of Mechanical Engineering for Production, Akita University, Akita, Japan

H. Sekine

Department of Engineering Science, Tohoku University, Sendai, Japan

H. Abé

Department of Mechanical Engineering, Tohoku University, Sendai, Japan

J. Energy Resour. Technol 107(2), 274-279 (Jun 01, 1985) (6 pages) doi:10.1115/1.3231189 History: Received June 11, 1984; Revised October 30, 1984; Online October 22, 2009


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 anlayzed on the basis of the two-dimensional theory of quasi-static thermo-elasticity. 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.

Copyright © 1985 by ASME
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