Results 21 to 30 of about 331 (154)

Economic Predictions for Heat Mining: A Review and Analysis of Hot Dry Rock (HDR) Geothermal Energy Technology [PDF]

open access: yes, 1990
The main objectives of this study were first, to review and analyze several economic assessments of Hot Dry Rock (HDR) geothermal energy systems, and second, to reformulate an economic model for HDR with revised cost components. The economic models reviewed include the following studies sponsored by Electric Power Research Institute (EPRI)-Cummings and
Tester, Jefferson W., Herzog, Howard J.
openaire   +2 more sources

Preliminary assessment of the efficiency of ORC plant operation supplied with hot water from the HDR system

open access: yesE3S Web of Conferences, 2018
The paper presents the results of a theoretical analysis of the low-temperature ORC power plant operation fed with hot water obtained in a hot dry rock (HDR) extraction system.
Kaczmarek Radomir, Stachel Aleksander
doaj   +1 more source

Exploration for hot dry rock geothermal resources in the Midcontinent USA. Hot dry rock conceptual models for exploration, HDR test site investigations, and the Illinois Deep Drill Hole Project. Volume 2 [PDF]

open access: yes, 1986
Three potential sources of HDR, each covering approximately a 2/sup 0/ x 2/sup 0/ area, were identified and subjected to preliminary evaluation with ad hoc exploration strategies. In the Mississippi Embayment test site, lateral thermal conductivity variations and subcrustal heat sources may be involved in producing abnormally high subsurface ...
Hinze, W. J.   +9 more
openaire   +2 more sources

Numerical Simulation on Heat Recovery Efficiency of Different Working Fluids in High-Temperature Rock Mass

open access: yesGeofluids, 2021
It is of great significance for the sustainable development of global energy to develop hot dry rock (HDR) geothermal resources by using enhanced geothermal system (EGS) technology.
Xu Dong   +5 more
doaj   +1 more source

Influences of confining pressure and injection rate on breakdown pressure and permeability in granite hydraulic fracturing

open access: yesEnergy Science & Engineering, 2023
Hot dry rock (HDR) geothermal resource is a renewable green energy source with great exploitation potential. The burial depth of HDR generally exceeds 2500 m and is typically under high in situ stress conditions, resulting in an ultralow permeability of ...
Wenchong Zhang, Heping Xie, Minghui Li
doaj   +1 more source

Methods for geothermal resource assessment of hot dry rock: A case study in the Gonghe Basin, China

open access: yesEnergy Exploration & Exploitation, 2022
Hot dry rock (HDR) geothermal resources are renewable energy source. Many of the findings of HDR resource evaluations have been used in energy planning and EGS design.
Lei Fu   +6 more
doaj   +1 more source

Game Approach to HDR-TS-PV Hybrid Power System Dispatching

open access: yesApplied Sciences, 2021
Hot dry rock (HDR) power stations have the potential to serve as an energy storage system for large-scale photovoltaic (PV) plants. For flexible operation, thermal storage (TS) power stations are required to coordinate with HDR power stations.
Yang Si   +5 more
doaj   +1 more source

Enhanced-Geothermal-Systems (EGS), Hot-Dry-Rock Systeme (HDR), Deep-Heat-Mining (DHM)

open access: yes, 2011
Mit dem Enhanced-Geothermal-System (EGS) soll der tiefere Untergrund als Warmequelle zur Stromerzeugung und Warmegewinnung genutzt werden (Abschn. 4.2). Synonyme sind Hot-Dry-Rock (HDR) oder Deep-Heat-Mining (DHM). Der Begriff HDR stammt aus der Anfangsphase dieser Technologie-Entwicklung, in der man noch von „trockenen“ Verhaltnissen in groser Tiefe ...
Ingrid Stober, Kurt Bucher
openaire   +1 more source

Progress and prospect of hot dry rock exploration and development

open access: yesShuiwen dizhi gongcheng dizhi, 2023
The exploitation and utilization of clean energy is a resource and environmental issue of common concern for global sustainable development. As a vital strategic and sustainable future energy, hot dry rock (HDR) has attracted more and more attention.
Dongguang WEN   +14 more
doaj   +1 more source

A Method for Determining Target Areas of Hot Dry Rock Resources: A Case Study in Continental China

open access: yesEnergies
Geothermal resources have been recognized as important sources of clean renewable energy. The exploration, development, and utilization of geothermal resources, especially hot dry rock (HDR) resources, are highly important for achieving peak carbon and ...
Yaqi Wang   +6 more
doaj   +1 more source

Home - About - Disclaimer - Privacy