Results 111 to 120 of about 187,824 (307)
Deep Underground Science and Engineering, EarlyView.The spiral conical perforations generated during methane in situ explosion fracturing operations lead to tensile fracture propagation in shale reservoirs being governed by the combined effects of impact pressure, bedding, and aperture under explosive loading. Using multiple regression analysis and digital image correlation technology, the mechanisms of
Yabo Chai +7 more
wiley +1 more source
From the old path of shipbuilding onto the new path of offshore wind energy? The case of northern Germany [PDF]
Wind energy-related employment has been surging recently in Germany: it rose from 9,200 in 1997 to 90,000 in 2007 and is estimated to be 112,000 in 2020. The industry particularly emerged in coastal, northern Germany.
Claudia Klaerding +4 more
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Deep Underground Science and Engineering, EarlyView.Our study reveals that caving‐enhanced geothermal systems (C‐EGS) with adequately fractured reservoirs achieve optimal heat extraction by minimizing preferential flow paths, while conventional fracturing (F‐EGS) and pipe‐based (P‐EGS) systems suffer accelerated thermal drawdown.
Fangchao Kang +4 more
wiley +1 more source
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 +8 more
wiley +1 more source
Using Transfer Learning and XGBoost for Early Detection of Fires in Offshore Wind Turbine Units
EnergiesTo improve the power generation efficiency of offshore wind turbines and address the problem of high fire monitoring and warning costs, we propose a data-driven fire warning method based on transfer learning for wind turbines in this paper.
Anping Wan +8 more
doaj +1 more source
Deep offshore and new foundation concepts [PDF]
, 2013 As the offshore wind power sector moves to deeper waters, new foundation concepts are being developed. The European Wind Energy Association (EWEA) has created a task force under its Offshore Wind Industry Group, to look specifically at the issues ...
Athanasia, A., Genachte, A.
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EcoEnergy, EarlyView.As maritime transport electrifies, bidirectional charging (V2G) offers a dual‐purpose solution for energy resilience and economic viability. This work identifies key technological advancements and lifecycle challenges utilizing practical case studies to demonstrate how V2G systems can drive decarbonization and grid stability in the marine sector ...
Jonathan Bloor +3 more
wiley +1 more source
Research on market mechanism design for inertia ancillary services and PFC services
Zhejiang dianliFrequency security in power systems with high-penetration renewable energy faces significant challenges， necessitating effective ancillary service market mechanisms for critical security services such as inertia ancillary services and primary frequency ...
ZHAO Jinquan +3 more
doaj +1 more source
A proposed national wind power R and D program [PDF]
An offshore wind power system is described that consists of wind driven electrical dc generators mounted on floating towers in offshore waters. The output from the generators supplies underwater electrolyzer stations in which water is converted into ...
Heronemus, W.
core +1 more source
Earthquake and Tsunami NaTech Risk Assessment for Oil Storage Facilities
Earthquake Engineering &Structural Dynamics, EarlyView.ABSTRACT Interaction of natural and technological hazards (NaTech) events, such as tsunamis and earthquakes, can affect industrial facilities such as those featuring anchored atmospheric storage tanks. Consequences of natural events on this kind of installation may include the release of hazardous substances, which in turn can lead to industrial ...
Georgios Baltzopoulos +6 more
wiley +1 more source