Hydraulically fractured hard rock aquifer for seasonal storage of solar thermal energy

Research output: Chapter in Book/Report/Conference proceedingConference contributionScientificpeer-review

Researchers

Research units

  • CSIRO

Abstract

The intermittent nature of solar thermal energy derives from its oversupply during the low season and undersupply during the peak season. The solution is to accumulate and store the surplus energy that can be used in times of high demand and low supply. The HYDROCK concept is a method developed for seasonal heat storage in artificially fractured bedrock. This study aims to investigate the rock fracturing process in the construction of hydraulically fractured hard rock aquifer for seasonal storage of thermal energy. The primary objective of this study is to perform a sensitivity analysis of numerical simulations of rock fracturing processes that are taking place during the development of artificially fractured heat storage in hard rocks. Coupled hydro-mechanical numerical models are generated using rock fracture mechanics code FRACOD2D. The sensitivity of critical parameters is presented, and all relevant influencing factors are investigated. Suggestions for practical applications of HYDROCK are given.

Details

Original languageEnglish
Title of host publicationGeomechanics and Geodynamics of Rock Masses
Subtitle of host publicationProceedings of the 2018 European Rock Mechanics Symposium
EditorsVladimir Litvinenko
Publication statusPublished - 15 May 2018
MoE publication typeA4 Article in a conference publication
EventISRM European Rock Mechanics Symposium - Saint Petersburg, Russian Federation
Duration: 22 May 201826 May 2018

Conference

ConferenceISRM European Rock Mechanics Symposium
Abbreviated titleEUROCK
CountryRussian Federation
CitySaint Petersburg
Period22/05/201826/05/2018

    Research areas

  • Fracture mechanics, Hydraulic fracturing, HYDROCK, Numerical modelling, Underground thermal energy storage

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