Results 41 to 50 of about 3,804 (217)

Equivalent Firm Capacity Assessment of HDR-PV Hybrid Power System: A Distributionally Robust Approach

Frontiers in Energy Research, 2021
Aiming at the reliable grid connection of photovoltaic (PV) systems in frigid plateau regions, this work first designs a flexible hot dry rock (HDR) hybrid power system (HPS), making full use of the potential of HDR for energy storage and power ...
Yang Si, Yang Si, Linrui Ma, Laijun Chen, Hengrui Ma, Shengwei Mei, Shengwei Mei   +6 more
doaj   +1 more source

Study of Characteristics of Fault Slip and Induced Seismicity during Hydraulic Fracturing in HDR Geothermal Exploitation in the Yishu Fault Zone in China

Geofluids, 2021
Hot dry rock (HDR) geothermal energy has become promising resources for relieving the energy crisis and global warming. The exploitation of HDR geothermal energy usually needs an enhanced geothermal system (EGS) with artificial fracture networks by ...
Zhiyong Niu, Shiquan Wang, Hongrui Ma, Hengjie Luan, Zhouyuyan Ding   +4 more
doaj   +1 more source

Coupled heat-fluid-solid numerical study on heat extraction potential of hot dry rocks based on discrete fracture network model

Energy Geoscience, 2023
Fracture networks within hot dry rock (HDR) geothermal reservoirs are complex, and heat extraction via water injection is thus a coupled process of heat-fluid-solid multifield. In this paper, utilizing the theory of normally distributed random functions,
Daobing Wang, Haiyan Zhu, Marembo Micheal, Xuanhe Tang, Qin Li, Xiangyi Yi, Dongliang Sun, Bo Yu, Qiang Liu   +8 more
doaj   +1 more source

Mechanical property variation mechanisms of granite subjected to real‐time high temperatures and subsequent cooling treatment

Deep Underground Science and Engineering, Volume 5, Issue 1, Page 277-295, March 2026.
This study investigates the coupled thermo‐mechanical behavior of granite during heating and cooling through a combination of laboratory tests and finite element analysis. The thermal conductivity, mineral composition, mass loss rate, micro‐crack observation, and thermal fracture characteristics of granite under various temperature conditions are ...
Rui Pang, Dehao Meng, Thomas Frühwirt, Hao Liu, Yanan Zhao, Qingyou Zhu, Wengang Dang, Mohamed Ismael, Fei Wang   +8 more
wiley   +1 more source

Unraveling the Environmental Drivers of Chytrid Fungal eDNA Detection and Quantity in Rainforest Streams

Environmental DNA, Volume 8, Issue 2, March/April 2026.
The fungal pathogen Batrachochytrium dendrobatidis was extensively monitored using environmental DNA across rainforest streams for the first time in Australia during an extreme climatic period of drought followed by record rainfall. Bd was widely detected—especially at higher elevations and after rainfall—with environmental factors influencing ...
Thais Sasso, Hamish McCallum, David Newell, Laura F. Grogan   +3 more
wiley   +1 more source

Development status and suggestions of hot dry rock hydraulic fracturing for building geothermal reservoirs

地质科技通报, 2022
Energy is a powerful guarantee for the long-term stable development of the economy and society. At the same time, China has also entered a critical period of ecological civilization construction.
Jingyu Xie, Dan Wang, Ning Li, Zhenyu Wang, Guoqiang Fu, Xianpeng Jing, Yuanyuan Ming   +6 more
doaj   +1 more source

In Situ Microscale Shear Failure Mechanism in Hot Dry Rock Under Thermal Cycling

Journal of Geophysical Research: Solid Earth, Volume 131, Issue 1, January 2026.
Abstract Induced shear failure is key for enhancing hot dry rock (HDR) resource exploitation, aiming to creating an extensive fracture network. Although the macroscopic shear behavior of HDR has been extensively investigated, its microscopic shear failure mechanisms remain unclear.
Bowen Liu, Cunbao Li, Shixin Zhang, Jianjun Hu, Jie Liu, Biao Li, Heping Xie   +6 more
wiley   +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  

Performance analysis of shallow depth hydrothermal enhanced geothermal system for building heating

Case Studies in Thermal Engineering, 2021
The energy reserves of hot dry rock (HDR) and hydrothermal system are abundant in China. However, there is low-level development and utilization due to high risk, huge capital investment and immature technology for HDR and dispersion distribution ...
Xianbiao Bu, Zhipeng Guo, Lingbao Wang
doaj   +1 more source

A multi-dimensional percussion method for efficient drilling in HDR formations: Rock fragmentation mechanism, drilling energy analysis, and performance optimization

International Journal of Mining Science and Technology
Percussion drilling is a promising approach for hot dry rock (HDR) fragmentation. However, understanding of HDR fragmentation mechanism under multi-dimensional percussion remains limited and hinders the corresponding drilling performance.
Zhaowei Sun, Xiaoguang Wu, Zhongwei Huang, Gensheng Li, Xianzhi Song, Zongjie Mu, Huaizhong Shi, Wenhao He, Berdiev Alisher   +8 more
doaj   +1 more source