Results 31 to 40 of about 4,740 (163)

Impact of Rock Elastic Properties on Fracture Geometry in Potential Enhanced Geothermal Systems in Poland

open access: yesEnergies
In hot dry rocks (HDRs), hydraulic fracturing is necessary to create enhanced geothermal systems (EGSs) and optimize flow rates between injection and production wells.
Rafał Moska   +2 more
doaj   +1 more source

Synergetic Effect of Non-Condensable Gas and Steam Quality on the Production Capacity of Geothermal Wells and Geothermal Power Generation for Hot Dry Rock

open access: yesEnergies, 2022
This paper aims to fill the research gap on the effect of steam quality and non-condensable gas on heat-carrying fluid productivity, system performance and optimization.
Tailu Li   +3 more
doaj   +1 more source

Research status and development trend of key technologies for enhanced geothermal systems

open access: yesNatural Gas Industry B, 2023
Enhanced geothermal system (EGS) is a primary method to develop geothermal resources stored in hot dry rock (HDR), but it faces several key problems, such as unreasonable hydraulic fracture networks at high reservoir temperature, unclear multi-scale and ...
Liang Gong   +6 more
doaj   +1 more source

Numerical study of enhanced geothermal systems with supercritical CO2 injection considering reservoir changes

open access: yesEnergy Science & Engineering
The injection of supercritical CO2 (ScCO2) into the enhanced geothermal systems (EGS) is a highly intricate thermohydromechanical (THM) coupled process. To improve the realism and accuracy of simulating convective heat transfer characteristics in CO2‐EGS,
Xiaochun Xiao   +4 more
doaj   +1 more source

Characteristics of flow phase transition and heat transfer of N2O medium at the rock core scale of dry hot rock

open access: yesCase Studies in Thermal Engineering
The phase characteristics of the heat exchange medium play a crucial role in the thermal performance of the heat reservoir in Enhanced Geothermal Systems.
Yongsheng Liu   +3 more
doaj   +1 more source

Thermal-Hydrologic-Mechanical Processes and Effects on Heat Transfer in Enhanced/Engineered Geothermal Systems

open access: yesEnergies
Enhanced or engineered geothermal systems (EGSs), or non-hydrothermal resources, are highly notable among sustainable energy resources because of their abundance and cleanness.
Yu-Shu Wu, Philip H. Winterfeld
doaj   +1 more source

Optimal HDR exploitation siting of gravity heat pipe geothermal systems via reservoir simulation

open access: yesGeomechanics and Geophysics for Geo-Energy and Geo-Resources
Gravity heat pipe system has previously been proven as an environmental and efficient technology in exploiting hot dry rock. However, it is unclear what geothermal reservoir siting is more favorable for the system’s heat extraction performance.
Chunwei Zhou   +3 more
doaj   +1 more source

Geothermal energy sources and possibilities of their exploitation [PDF]

open access: yesActa Montanistica Slovaca, 2007
The geothermal energy is everywhere beneath the surface of the earth. The earth’s interior is enormous thermal reservoir of energy, which can be utilized if favorable geological conditions exist.The electricity generation in 1942 at Larderello was a ...
Pavol Rybár
doaj  

Determination of Hydraulic Properties of a Large Self-Propped Hydraulic Fracture in the Geothermal Research Borehole Horstberg Z1 in the Northwest German Basin

open access: yesGeofluids, 2019
The pressure records of an interference test on a huge hydraulic fracture in a layered sedimentary rock formation of the Northwest German Basin were analysed in order to determine fracture transmissivity and fracture storage coefficient. The fracture had
Reinhard Jung   +2 more
doaj   +1 more source

Performance Analysis on a Hot Dry Rock Geothermal Resource Power Generation System Based on Kalina Cycle

open access: yesEnergy Procedia, 2015
AbstractBased on the conventional Kalina cycle, a hot dry rock geothermal resource power generation system is recommended in this paper. To predict the system performance, the corresponding thermal calculation model is established. A high pressure condenser and a low pressure condenser are used to condense the working fluid(Ammonia-water mixture) and ...
Wei, Gaosheng   +3 more
openaire   +1 more source

Home - About - Disclaimer - Privacy