Results 21 to 30 of about 10,191 (263)

Geothermal energy utilisation in Slowakia and its future development [PDF]

open access: yesActa Montanistica Slovaca, 2004
Owing to favourable geological conditions Slovakia is a country abundant in occurrence of low-enthalpy sources. The government of the state sponsors new renewable ecological energy sources, among which belongs geothermal energy.
Sidorová Marína   +2 more
doaj  

Protection of hotwater line of geothermal water from wells GTD-1,2,3 in Ďurkov [PDF]

open access: yesActa Montanistica Slovaca, 2006
The geothermal energy nowadays belongs to the most interesting, renewable, progressive and ecologically pure energies. Its utilization began long ago, but because the development and exploration show that fossil fuels are depletable in 40 – 50 years, it ...
Gabriel Wittenberger
doaj  

Equivalent Circulation Density Analysis of Geothermal Well by Coupling Temperature

open access: yesEnergies, 2017
The accurate control of the wellbore pressure not only prevents lost circulation/blowout and fracturing formation by managing the density of the drilling fluid, but also improves productivity by mitigating reservoir damage.
Xiuhua Zheng   +5 more
doaj   +1 more source

Evaluation of geothermal resource potential in Shifogou based on geothermal geological conditions of the Lanzhou faulted basin

open access: yesShuiwen dizhi gongcheng dizhi, 2023
Aiming at the problem of low degree of exploration and research of geothermal geological conditions in the Shifugou area, which seriously restricts the development and utilization of geothermal resources, on the basis of available data, the geothermal ...
Xiuqing CHEN   +3 more
doaj   +1 more source

Geothermal Well Systems

open access: yes, 2013
Geothermal well systems utilize the thermal energy of clean groundwater of hydraulically highly conductive aquifers with water tables close to the surface. The thermal energy of water produced from the well can be extracted by means of heat pumps. Such systems are also called two-well-systems, water–water-heat-pump-systems, or groundwater heat pump ...
Ingrid Stober, Kurt Bucher
openaire   +1 more source

PROSPECTS OF GEOTHERMAL RESOURCES DEVELOPMENT FOR EAST CISCAUCASIA

open access: yesЮг России: экология, развитие, 2014
. Work subject. Aim. The Northern Caucasus is one of the prospective regions for development of geothermal energy.The hydrogeothermal resources of the only East Ciscaucasian Artesian basin are estimated up to 10000 MW of heat and 1000 MW of electric ...
A. B. Alkhasov, D. A. Alkhasova
doaj   +1 more source

A study of simulation and optimization of the production-reinjection scheme of a geothermal water system: A case study of the geothermal space heating demonstration area in northern Jiangsu countryside

open access: yesShuiwen dizhi gongcheng dizhi, 2023
During the process of developing and utilizing geothermal resources, various challenges are encountered. One such challenge is the decrease in temperature and pressure of the geothermal reservoir as a result of the increasing geothermal exploitation and ...
Pengfei ZOU   +7 more
doaj   +1 more source

Distribution, exploitation, and utilization of intermediate-to-deep geothermal resources in eastern China

open access: yesEnergy Geoscience, 2023
The part of China, east of the Hu Huanyong Line, is commonly referred to as eastern China. It is characterized by a high population density and a well-developed economy; it also has huge energy demands.
Zhiliang He   +3 more
doaj   +1 more source

Grain Boundary Space Charge Engineering of Solid Oxide Electrolytes: Model Thin Film Study

open access: yesAdvanced Functional Materials, EarlyView.
This study demonstrates unprecedented control of grain boundary electrical properties in solid electrolytes. Selective diffusion of cations through grain boundaries in thin films enables 12 orders of magnitude variation in ionic resistance, proving that systematic chemical modification of grain boundary electrical properties is feasible.
Thomas Defferriere   +5 more
wiley   +1 more source

Colloid‐Mediated Synthesis of Hierarchically Porous Amorphous Catalyst for Durable Industrial‐Scale Water Electrolysis

open access: yesAdvanced Materials, EarlyView.
A colloid‐mediated electroless plating (CMEP) strategy is proposed to fabricate hierarchically porous, amorphous Fe‐doped NiWB electrocatalysts under ambient conditions. The in situ formation of Fe‐W‐O colloidal species guides the formation of robust, porous catalyst layers with excellent mass transfer and durability, sustaining 500 mA cm−2 for 2000 h,
Yu Liao   +8 more
wiley   +1 more source

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