Results 71 to 80 of about 16,406 (309)

The state and prospects of geothermal energy development in Uzbekistan [PDF]

open access: yesE3S Web of Conferences
The article considers topical issues of the state of resources and prospects of use of geothermal energy taking into account foreign experience in the republic as one of the types of renewable energy source, connected, first of all, with depleted fossil ...
Ismailov Bakhtiyar   +4 more
doaj   +1 more source

Proposed geothermal resources subzone [PDF]

open access: yes, 1988
This application brought persuant to Title 13, Department of Land and Natural Resources, Sub-Title 7, Water and Land Development, Chapter 184, Designation and Regulation of Geothermal Resource Subzones, Subchapter 2, Designation of Geothermal Resource ...
Integrated Resources, Inc.
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

open access: yesDeep 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   +5 more
wiley   +1 more source

Impacts of Temperature and Pressure on the Thermophysical Properties of Granites

open access: yesEnergy Exploration & Exploitation
The thermophysical properties of rocks are identified as basic physical parameters for the exploitation and utilization of hot dry rock (HDR) geothermal resources. Given that reservoirs in a HDR system are subjected to a certain temperature and pressure,
Lixia Xu   +4 more
doaj   +1 more source

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

open access: yesDeep 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   +9 more
wiley   +1 more source

Prediction of regional hydrothermal geothermal resource carrying capacity based on multi-level fuzzy comprehensive evaluation: A case study of Zhengzhou, China

open access: yesCase Studies in Thermal Engineering
Accurate assessment of geothermal resource carrying capacity (GRCC) is pivotal for sustainable energy development; however, existing methodologies often lack comprehensive integration of multi-dimensional factors.
Gaoli Zhao   +5 more
doaj   +1 more source

Hawaii's geothermal and deep water cable programs

open access: yes, 1985
"Hawaii's dependence on imported fuel oil for over 90 percent of its energy needs can be minimized by exploitation of the State's abundant indigenous energy resources.
Lesperance, Gerald O., Eaton, Russell
core  

Geothermal resource assessment for Hawaii [PDF]

open access: yes, 1979
The preliminary phase of a geothermal resource assessment program for the State of Hawaii has been completed. Several locations on all the major islands of the Hawaiian chain have been identified as potentially having a geothermal reservoir within a few ...
Thomas, Donald M.
core  

Advancing mine pillar design: Evaluating traditional methods and integrating AI for enhanced stability of pillars in the Great Dyke, Zimbabwe

open access: yesDeep Underground Science and Engineering, EarlyView.
B1 is bord width 1, B2 is bord width 2, L is the pillar length, W is the pillar width, red color and letter A represent the pillars, and white color and number 1 represent excavated areas. Pstress is the average pillar stress; σv is the vertical component of the virgin stress, MPa; and e is the areal extraction ratio. e = B o B o + B P ${\rm{e}}=\frac{{
Tawanda Zvarivadza   +4 more
wiley   +1 more source

Techno-Economic Evaluation of Geothermal Energy Utilization of Co-Produced Water from Natural Gas Production

open access: yesEnergies
The utilization of thermal energy from co-produced water during natural gas production offers a promising pathway to enhance energy efficiency and reduce carbon emissions.
Lianzhong Sun   +11 more
doaj   +1 more source

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