Results 101 to 110 of about 145,289 (340)

Direct Use of Low Enthalpy Deep Geothermal Resources in the East African Rift Valley [PDF]

, 2015
Geothermal energy is already harnessed across East Africa to provide hundreds of megawatts of electricity, with significant plans for future expansion towards generation at the gigawatt scale.
Delacherois Day, George, Elliott, Thomas P., Feliks, Michael E., Percy, George D., Younger, Paul L.   +4 more
core  

Multiple injection techniques to stimulate complex fracture networks in coal reservoirs: A case study on gas disaster reduction of subsurface coal mine in southwest China

Deep Underground Science and Engineering, EarlyView.
An experimental device for physical simulation of hydraulic fracturing, comprising: a load‐bearing mechanism with multiple interconnected plates that collectively form an sample chamber; a load‐generating mechanisms, with multiple load‐generating mechanisms arranged within the experimental chamber.
Delei Shang, Farui Shi, Jun Lu, Minghui Li, Cunbao Li, Heping Xie   +5 more
wiley   +1 more source

The conversion of biomass to ethanol using geothermal energy derived from hot dry rock to supply both the thermal and electrical power requirements [PDF]

, 2002
Donald W. Brown
openalex   +1 more source

Numerical simulation study on the evolution of the temperature field and frozen wall in fractured rock mass

Deep Underground Science and Engineering, EarlyView.
The evolution of the temperature field and frozen wall under different fracture conditions was examined by an artificial ground freezing‐based thermal‐hydraulic coupled model. It was observed that fracture inclination affects the interaction extent of freezing pipes and fracture, while phase transition extent is the dominant factor for heat transfer in
Chenyi Zhang, Tingting Luo, Tao Zhang, Tao Han, Xiaodong Zhao, Haipeng Li, Yanfei Ma, Faxing Zhang, Madhusudhan Bangalore Narasimha Murthy, Weihao Yang   +9 more
wiley   +1 more source

THE ECONOMIC IMPLICATIONS OF THE GEOTHERMAL POTENTIAL OF WEST AND NORTHWEST REGION OF ROMANIA [PDF]

The energy crises of the 70s led to the vigorous interventions of the industrialized states in the energy sector. On the European political agenda a new problem appeared, namely the one regarding the security of the energy supply.
Florea Adrian, Maghear Diana, Perticas Razvan   +2 more
core  

Research progress and current status of dynamic wave propagation characteristics in rock mass: A review

Deep Underground Science and Engineering, EarlyView.
This review elucidates the velocity–dispersion–attenuation coupling mechanisms of wave propagation in rock masses, compares six representative models, and reveals how pressure, temperature, mineral composition, and anisotropy jointly control dynamic responses in complex geological media.
Jiajun Shu, Tao Li, Ruiqi Yuan, Yue Li, Bingni Wu, Bo Liu, Zhengding Deng, Galindo Rubén, Fausto Molina‐Gómez   +8 more
wiley   +1 more source

Numerical Study of the Thermo-Hydro-Mechanical Coupling Impacts of Shallow Geothermal Borehole Groups in Fractured Rock Mass on Geological Environment

Energies
Fractured rock mass is extensively distributed in Karst topography regions, and its geological environment is different from that of the quaternary strata.
Yujin Ran, Jia Peng, Xiaolin Tian, Dengyun Luo, Bin Yang, Peng Pei, Long Tang   +6 more
doaj   +1 more source

Hydropower, Geothermal, and Ocean Energy [PDF]

, 2008
Ralph Sims
openalex   +1 more source

Performance assessment of a potential underground thermal storage facility: Case study of the closed mine Prosper‐Haniel in the Ruhr coal mining area in Germany

Deep Underground Science and Engineering, EarlyView.
This study demonstrates the feasibility of an underground closed‐loop thermal storage facility at a post‐mining site, intended for seasonal heat energy storage. Its principal design shows water flow directions in winter and summer (1, 2), heat pumps (3), an upper water reservoir (4), and connecting pipes (5).
Dmytro Rudakov, Oleksandr Inkin
wiley   +1 more source

Risk of surface movements and reservoir deformation for high-temperature aquifer thermal energy storage (HT-ATES)

Geothermal Energy
High-temperature aquifer thermal energy storage (HT-ATES) systems are designed for seasonal storage of large amounts of thermal energy to meet the demand of industrial processes or district heating systems at high temperatures (> 100 °C).
Kai Stricker, Robert Egert, Eva Schill, Thomas Kohl   +3 more
doaj   +1 more source