Results 81 to 90 of about 16,406 (309)

Research progress and current status of dynamic wave propagation characteristics in rock mass: A review

Deep Underground Science and Engineering, EarlyView.
This review elucidates the velocity–dispersion–attenuation coupling mechanisms of wave propagation in rock masses, compares six representative models, and reveals how pressure, temperature, mineral composition, and anisotropy jointly control dynamic responses in complex geological media.
Jiajun Shu, Tao Li, Ruiqi Yuan, Yue Li, Bingni Wu, Bo Liu, Zhengding Deng, Galindo Rubén, Fausto Molina‐Gómez   +8 more
wiley   +1 more source

Geothermal resource distribution and prospects for development and utilization in China

Natural Gas Industry B
China is tectonically composed of a series of plates and orogenic belts and has been influenced by the Pacific and Indian plates since the Late Paleozoic, forming a regular distribution of Mesozoic and Cenozoic granites.
Jinchuan Zhang, Lei Chen, Yuhang Sun, Longfei Xu, Xingxu Zhao, Qianchao Li, Dawei Zhang   +6 more
doaj   +1 more source

Performance assessment of a potential underground thermal storage facility: Case study of the closed mine Prosper‐Haniel in the Ruhr coal mining area in Germany

Deep Underground Science and Engineering, EarlyView.
This study demonstrates the feasibility of an underground closed‐loop thermal storage facility at a post‐mining site, intended for seasonal heat energy storage. Its principal design shows water flow directions in winter and summer (1, 2), heat pumps (3), an upper water reservoir (4), and connecting pipes (5).
Dmytro Rudakov, Oleksandr Inkin
wiley   +1 more source

A novel multi-criteria spatial analysis approach for evaluating development prospects of geothermal resources: A case-study from Guangdong Province, China

Results in Engineering
Geothermal resources are renewable and environmentally friendly energy sources with distinctive advantages such as local sourcing, good stability, and minimal land occupation.
Yongyi Li, Ghaffar Ali, Lianhua Ma
doaj   +1 more source

Effect of geothermal brine properties on silica scaling in enhanced geothermal systems

, 2012
Silica scaling in Enhanced Geothermal Systems (EGS) is currently a concern affecting the economic viability of geothermal energy extraction. Knowledge of the effect of brine properties, such as pH and salinity, on silica scaling is essential for the ...
Kuncoro, G., Ngothai, Y., Yanagisawa, N., Lane, D., Rose, P., Pring, A.   +5 more
core  

The Hawaii Scientific Observation Hole (SOH) Program [PDF]

, 1990
The Hawaii Natural Energy Institute of the University of Hawaii is directing a Scientific Observation Hole (SOH) program. The SOHs are for scientific observation and monitoring purposes only. The holes will not be flow-tested or produced. The information
Thomas, Donald M., Seki, Arthur S., Deymonaz, John E., Olson, Harry J.   +3 more
core  

Historical Pattern Analysis of Global Geothermal Power Capacity Development

, 2023
Between 1913 and 1958, Italy was the only country with an operational geothermal power plant until New Zealand installed its first plant in 1958. At present, 24 countries are involved in the geothermal power market, and they have a combined installed ...
Ediger,V.Ş., Akar,S.
core  

Thermal‐induced fracture evolution and acoustic signature of Beishan granite: Insights into tensile strength of barrier system for high‐level radioactive waste disposal

Deep Underground Science and Engineering, EarlyView.
The tensile strength of granite, a proposed host for nuclear waste, degrades severely above 400°C. We link this to specific microcracking patterns captured by acoustic emission, establishing a scientific basis for assessing repository safety under thermal load.
Wei Zeng, Shijie Li, Xiaozhao Li, Zhen Huang, Shangtong Yang, Wentao Xu, Biao Wang, Yun Wu   +7 more
wiley   +1 more source

Mapping and resource evaluation of deep high-temperature geothermal resources in the Jiyang Depression, China

Energy Geoscience
In China, geothermal resource utilization has mainly focused on resources at shallow and medium depths. Yet, the exploration of deep, high-temperature geothermal resources holds significant importance for achieving the “dual carbon” goals and the ...
Shaozheng Wang, Yaoqi Zhou, Xin Zhang, Yangzhou Wang, Yonghong Yang, Yuehan Shang, Yang Chen, Xiaoxin Shi   +7 more
doaj   +1 more source

Advances in vital‐sign prediction and early‐warning models for underground coal mine workers integrating environmental factors

Deep Underground Science and Engineering, EarlyView.
This review synthesizes advances in predicting miners' vital signs by integrating environmental monitoring (dust, temperature, and gas) with physiological data. It highlights multi‐source data fusion techniques and early‐warning models for enhanced occupational safety in underground coal mines.
Junji Zhu, Dawei Cui, Yingjie Liu, Yuntao Liang, Yue Zhang   +4 more
wiley   +1 more source