Results 51 to 60 of about 10,940,349 (202)

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

, 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

Hot dry rock reservoir engineering [PDF]

, 1987
The Hot Dry Rock (HDR) concept is a simple one. Two nearly parallel wells are drilled, and hydraulic fractures are then formed to hydraulically connect the wells.
Murphy, H.
core  

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

Energy 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, Wensheng Li, Peiyushun Gong, Jun Xu, Xin Ding   +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

Case 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, Jiansong Zhang, Jianxin Xia, Jianguo Lv   +3 more
doaj   +1 more source

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

Energies
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

Hot dry rock venture risks investigation: [PDF]

, 1988
This study assesses a promising resource in central Utah as the potential site of a future commerical hot dry rock (HDR) facility for generating electricity.

core   +1 more source

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

Geomechanics 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, Yaqiong Wang, Gang Liu, Shengming Liao   +3 more
doaj   +1 more source

Heat extraction characteristics of supercritical carbon dioxide within rough fractures of hot dry rock under dynamic injection conditions

Case Studies in Thermal Engineering
Supercritical carbon dioxide, as a working fluid in Enhanced Geothermal Systems (EGS), exhibits great potential in the development of Hot Dry Rock (HDR) geothermal energy.
Jiansong Zhang, Sheng Wang, Yongsheng Liu, Liming Jian, Heng Wu, Lingshen Lan, Fang Jin   +6 more
doaj   +1 more source

Thermal Conductivity of Rocks Associated with Energy Extraction from Hot Dry Rock Geothermal Systems [PDF]

, 1978
Because the lifetime of and heat extraction rate from a hot dry rock (HDR) geothermal reservoir can be substantially controlled by the in situ rock thermal conductivity, information concerning the dependence of thermal conductivity on moisture content and temperature is important for proper design and management of the reservoir.
Sibbitt, W. L., Dodson, J. G., Tester, J. W.   +2 more
openaire   +1 more source

Hot Dry Rock Overview at Los Alamos

, 1989
The Hot Dry Rock (HDR) geothermal energy program is a renewable energy program that can contribute significantly to the nation's balanced and diversified energy mix. Having extracted energy from the first Fenton Hill HDR reservoir for about 400 days, and
Berger, Michael, Hendron, Robert H.
core