Results 71 to 80 of about 11,465 (244)

Carbon emission assessment of tunnel infrastructures: From construction to operation

open access: yesDeep Underground Science and Engineering, EarlyView.
This study develops a lifecycle carbon accounting framework for tunnel infrastructures, covering design, construction, operation, maintenance, and dismantling. Applied to a subsea tunnel case, the framework reveals the carbon emission distribution among four typical tunnel types and highlights potential carbon offset methods for low‐carbon tunnel ...
Luyuan Long   +4 more
wiley   +1 more source

Investigation on tunnel stability considering pipe‐roof support with transparent soil technology

open access: yesDeep Underground Science and Engineering, EarlyView.
This study integrates transparent soil technology, 3D reconstruction and numerical simulation to captures the full‐field deformation of shield tunnel instability. Results demonstrate that pipe‐roof support enhances stability via the “soil‐arching barrier effect,” effectively restraining failure wedge development by extending stress transfer paths ...
Zhi Jia   +4 more
wiley   +1 more source

Enhancing Energy Supply Security Through Green Hydrogen Integration: The Role of Depleted Gas Reservoirs in Serbia

open access: yesEnergies
Serbia’s energy sector is undergoing structural transformation driven by European climate policies, market volatility, and the need for long-term energy security. In this context, geological storage of energy carriers represents a strategically important
Miroslav Crnogorac   +4 more
doaj   +1 more source

Geological carbon dioxide storage in the German North Sea: Static‐to‐dynamic capacity refinement for a 10 Mt/y injection scenario

open access: yesDeep Underground Science and Engineering, EarlyView.
This study assesses whether a saline aquifer in the German North Sea can sustain industrial‐scale CO2 injection at 10 Mt/year over 30 years. A 3D reservoir model is used to compare static capacity with dynamically achievable storage. The work links site‐scale injection strategy design with basin‐scale pressure response, providing a framework for ...
Firdovsi Gasanzade, Sebastian Bauer
wiley   +1 more source

Geological hydrogen. Different sources and mechanisms for the production of natural hydrogen.

open access: yes
Natural hydrogen has been found in many geological environments, including ocean spreading centres, transform faults, passive boundaries, convergent margins and intraplate settings, etc.
Feodoridi, Kseniia, Feodoridi, Georgii
openaire   +1 more source

Comparative Analysis of Metal Preloading Technologies in Batteries and Capacitors

open access: yesEcoEnergy, EarlyView.
Metal preloading strategies play an important role in efficient batteries and hybrid capacitors to compensate for the consumed metals at the first discharge. This article reviews recent progress in preloading technologies in lithium‐ion and other metal‐ion systems.
Xuexue Pan   +3 more
wiley   +1 more source

Understanding hydrogen reactivity with anhydrite in underground hydrogen storage

open access: yesScientific Reports
With increasing global demand for a sustainable and efficient energy source, hydrogen has established its potential with natural presence in geological rocks, high combustion efficiency and lower carbon foot print.
Muhammad Hammad Malik   +2 more
doaj   +1 more source

Investigative research for occurrences of hydrogen, helium, methane and carbon dioxide in West Macedonia: linking geological reservoirs to subsurface gas generation and migration [version 2; peer review: 1 approved, 2 approved with reservations, 1 not approved]

open access: yesOpen Research Europe
Background Climate change, the need for energy optimisation and higher efficiency have led to the adoption of the Paris Agreement as a response to the urge for action.
Pavlos Tyrologou   +4 more
doaj   +1 more source

Synergistic Crystallinity Reduction and Lewis Acidic Promotion by PVDF‐Al(OH)3 for High Room‐Temperature Ionic Conductivity in PEO‐Based Composite Quasi‐Solid Electrolytes

open access: yesEcoEnergy, EarlyView.
Through the synergistic effects of crystallinity reduction and Lewis acidic promotion enabled by PVDF‐Al(OH)3, a PEO‐based composite quasi‐solid electrolyte has been developed, achieving both a high Li+ transfer number and superior ionic conductivity. It endows lithium metal batteries with excellent cycling stability at room temperature, even without ...
Kongmei Chen   +10 more
wiley   +1 more source

Integrated multispectral remote sensing and soil-gas measurements for exploring natural hydrogen near the Kempirsai ultramafic massif, western Kazakhstan

open access: yesScientific Reports
Natural hydrogen (H2) has recently attracted increasing interest as a potential low-carbon energy resource. In this context, the surface expressions and geological controls governing hydrogen generation and migration require more in-depth investigations,
Mahmoud Leila   +5 more
doaj   +1 more source

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