Analysis of thermal effectiveness of geothermal multi-borehole circulating system

S. Fomin, K. Yoshida, T. Hashida

Research output: Chapter in Book/Report/Conference proceedingChapter

Abstract

A three-dimensional model (FRACSIM-3D) developed in Tohoku University for numerical simulation of heat and fluid flow within the fractured media is used in the analysis of geothermal reservoir performance. The model effectively simulates two main stages of the geothermal reservoir exploitation: hydraulic stimulation of the existing natural fractures within the hot dry rock (HDR) reservoir and forced convection through the fractured media when the filtrating fluid extracts the heat from the hot rock and delivers it to the production well. Since the heat accumulated by the fluid within the system of injection boreholes can constitute a substantial fraction of the total thermal output of the geothermal power plant, the model of heat and mass transfer in the fractured media at the heat extraction stage should be coupled with the equations which describe the heat transport in the system of injection and production wells. Mathematical modeling of heat flow within the multi-borehole circulating system is proposed in this study.

Original languageEnglish
Title of host publicationAnnu. Geotherm. Resources Counc. Mtg. (Reno, NV, 9/22-25/2002) Trans.
Pages279-283
Number of pages5
Publication statusPublished - 2002 Dec 1
Externally publishedYes

Publication series

NameAnnu. Geotherm. Resources Counc. Mtg. (Reno, NV, 9/22-25/2002) Trans.
Volume26
ISSN (Print)0193-5933

ASJC Scopus subject areas

  • Renewable Energy, Sustainability and the Environment
  • Energy Engineering and Power Technology
  • Geophysics

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