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21,462 result(s) for "Geothermal resources."
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Geothermal power
Explains the science behind geothermal energy, from where it originates to how it can be utilized to generate electricity.
Occurrence of geothermal resources and prospects for exploration and development in China
Under the background of China’s energy structure optimization, environmental protection, energy conservation, and rising pressure of emission reduction, geothermal, as a potential strategic replacement energy, has ushered in new opportunities and challenges. This paper systematically summarizes the domestic achievements in the exploration and development of geothermal resources, analyzes the endowment, distribution, and accumulation mechanism of geothermal resources in China, and points out the main problems existing in the exploration and development of geothermal resources in China. On this basis, it looks forward to China’s urgent geothermal exploration and development work and key technologies to be urgently developed, providing important guidance for China’s geothermal science and technology innovation and rapid industrialization development.
Machine Learning for Geothermal Resource Exploration in the Tularosa Basin, New Mexico
Geothermal energy is considered an essential renewable resource to generate flexible electricity. Geothermal resource assessments conducted by the U.S. Geological Survey showed that the southwestern basins in the U.S. have a significant geothermal potential for meeting domestic electricity demand. Within these southwestern basins, play fairway analysis (PFA), funded by the U.S. Department of Energy’s (DOE) Geothermal Technologies Office, identified that the Tularosa Basin in New Mexico has significant geothermal potential. This short communication paper presents a machine learning (ML) methodology for curating and analyzing the PFA data from the DOE’s geothermal data repository. The proposed approach to identify potential geothermal sites in the Tularosa Basin is based on an unsupervised ML method called non-negative matrix factorization with custom k-means clustering. This methodology is available in our open-source ML framework, GeoThermalCloud (GTC). Using this GTC framework, we discover prospective geothermal locations and find key parameters defining these prospects. Our ML analysis found that these prospects are consistent with the existing Tularosa Basin’s PFA studies. This instills confidence in our GTC framework to accelerate geothermal exploration and resource development, which is generally time-consuming.
Defining the Range of Water Withdrawals That Are Forbidden and Regulated for Geothermal Energy Development and Use Projects: A Case Study of Lindian County, Northeast China
The current study reveals a deficiency in knowledge regarding the assessment of the breadth of prohibitions and restrictions on water withdrawal for the development and utilization of geothermal resource projects involving water withdrawal. To resolve this matter, this report outlines the extent of water withdrawal prohibitions and restrictions for geothermal energy development and use projects, with a particular focus on Lindian County’s medium- and low-temperature geothermal resources of the sedimentary basin type. A comprehensive consideration of geological, hydrological, and other factors was made in light of the need for global energy transformation and the benefits and drawbacks of geothermal energy. The study first divided Lindian County into 17 zones using the zoning method of dominant sign and superposition method, which was then combined with the hierarchical analysis method. The evaluation indexes were then quantitatively graded and evaluated in the 17 zones using the linear weighted sum method, and each zone’s suitability for water abstraction was ultimately determined. The limited and banned water withdrawal range of the Lindian County geothermal energy development and utilization project is defined based on the water withdrawal characteristics of the 17 subareas. The rational development of geothermal energy, the preservation of the natural environment, and the advancement of the geothermal industry in Lindian County are all greatly impacted by this study, which offers a more sophisticated methodology for the assessment of water withdrawal type projects of sedimentary basin-type medium- and low-temperature geothermal resources.
Acceleration towards clean energy with the emergence of promising signs of shallow geothermal resources in Northwestern Iran
Geoenergy refers to the energy stored or generated beneath the Earth’s surface, including geothermal heat, fuels and nuclear power. Shallow geothermal resources are an excellent energy source for various applications: they are highly efficient and cost-effective, and they can heat and cool buildings, provide hot water and even generate electricity. One promising approach to detecting geothermal energy is Geographic Information System (GIS) technology. By integrating geological surveys, geophysical and geochemical measurements and remote-sensing data into a single platform, a comprehensive view of subsurface conditions can be gained. In this study, we examined the Marand region in East Azerbaijan Province to explore shallow geothermal resources. Geochemical, geophysical, geological and remote-sensing data were integrated to assess the geothermal potential of study area. The results indicate that Marand holds viable shallow geothermal resources. Active tectonics—closely linked to kaolinite deposit formation of north Marand—have attracted both geoscientists and the Geoenergy sector to this area. The Zonouz kaolin deposits served as key indicators for locating potential geothermal reservoirs. Remote sensing and GIS methods were employed to detect geothermal anomalies: Advanced Spaceborne Thermal Emission and Reflection Radiometer (ASTER) imagery was analyzed to produce alteration maps. These maps indicate northern Marand area exhibits elevated thermal emissivity and strong potential for geothermal reservoirs.
Thermal and mineral waters : origin, properties and applications
This is a compilation of manuscripts on mineral and thermal waters of different areas of the world. This special volume is devoted to the 41st Meeting of the This is a compilation of manuscripts on mineral and thermal waters of different areas of the world. This special volume is devoted to the 41st Meeting of the Commission on Mineral and Thermal Waters of International Association of Hydrogeologists (IAH-CMTW) held in Cairo, Egypt, in October 2009. The presentations collected and presented in this volume show the variety of aspects of mineral and thermal waters occurrence and utilization in different countries of the world with a special focus on Egypt, Iran, Ukraine, Poland, Russia and Australia.
Study on the genesis mechanism of geothermal resources in the Yunkai area, South China based on geophysical data
Yunkai area is located in the southwest of South China Block and is characterized by widespread granite distribution, dense hot spring occurrences, and well-developed deep faults, indicating significant geothermal resource potential. However, the establishment of a comprehensive geothermal genesis mechanism for this region has been hindered by limited geological data. In this study, geophysical data are employed to constrain the depths of faults and intrusion. Regional granite heat production rates are systematically compiled, and a typical geological profile is modeled using a two-dimensional heat conduction equation to elucidate the geothermal resource genesis mechanism of the Yunkai area. The research indicates that most faults in the study area extend to depths of 0–4 km, with only a few faults in the southwestern region exceeding 8 km. The depth of intrusions are mostly distributed at depths of 6–8 km, while those in the central region are significantly deeper, exceeding 10 km. The heat generation rate of granite ranges from 1.87 to 6.00 µW/m³, with an average value of 3.42 µW/m³, serving as a thermal source to heat underground fluids. Based on these findings, the geothermal genesis mechanism of the Yunkai area is interpreted as follows: atmospheric precipitation originating from surrounding high-altitude mountains infiltrates downward along fracture networks into deeper layers, where it is heated by the surrounding rock. Driven by pressure, this heated fluids migrate upward along deep-seaked faults, mixes with shallow cold groundwater, and undergo further heating due to the radiogenic heat production rate of granite at the surface. The fluids ultimately converge at fault intersections and discharge at the surface, forming hot spring clusters. The southeastern part of the study area shows favorable conditions for the development of high-temperature geothermal resources. This study clarifies the genesis mechanism of geothermal resource in the Yunkai area and provides a scientific basis for future geothermal exploration and development.