Results 81 to 90 of about 1,328,736 (256)

Tuning CO/CO2 Formation, Flame Temperature, and Ignition Delay Time Through Steam Dilution and Hydrogen Enrichment in Methane Oxy-Combustion

open access: yesEnergies
Methane oxy-combustion is a promising carbon capture pathway due to the high CO2 concentration in the exhaust; however, combustion in pure oxygen produces excessively high flame temperatures that impair ignition and operational stability.
Milad Amiri, Artur Tyliszczak
doaj   +1 more source

Programmable Soft Actuator with Multi‐Responsiveness Based on Conductive MOF‐Liquid Crystal Polymer Composite

open access: yesAdvanced Functional Materials, EarlyView.
A sequential dual‐alignment strategy independently programs the orientation of conductive metal‐organic framework (c‐MOF) microrods and liquid crystals within a composite film. This approach creates an asymmetric bilayer structure that enables precise, multi‐responsive actuation.
Taegyun Hong   +5 more
wiley   +1 more source

Predicting the effect of hydrogen enrichment on the flame describing function using machine learning

open access: yes
As a promising strategy to mitigate carbon emissions, hydrogen enrichment of conventional fuels is gaining increasing interest, but can lead to increased propensity to damaging thermoacoustic instability.
Shen, Yazhou, Morgans, Aimee S
core   +1 more source

Numerical Study on Combustion Behavior of Tuyere and Raceway in Blast Furnace with Oxygen-Rich Blast and Hydrogen Injection

open access: yesMetals
The injection of hydrogen into a blast furnace is a promising technology to fulfill the low-carbon ironmaking purpose. A three-dimensional computational fluid dynamic (CFD) model is developed to investigate the effect of hydrogen injection rate and blast
Ruimeng Shi   +5 more
doaj   +1 more source

Preferential Interfacial Engineering of Hydrogels via Interdigitated Nanoparticle Assembly

open access: yesAdvanced Functional Materials, EarlyView.
Robust surface functionalization of hydrogel surfaces is performed via interdigitated metal nanoparticle assembly, inducing strong affinity with the hydrogel matrix. The partially exposed nanoparticle domains act as interfacial nanobridges that mediate both chemical and physical bonding with diverse materials, including small molecules, fluorous ...
Hyeonjin Kim   +11 more
wiley   +1 more source

Advances in Solution‐Processed Textile Triboelectric Nanogenerators: Ink Formation, Processing Strategies, Applications, and Challenges

open access: yesAdvanced Functional Materials, EarlyView.
Advanced ink systems for solution‐processed textile triboelectric nanogenerators are systematically summarized, spanning conductive, tribo‐negative, and tribo‐positive layers. By connecting ink chemistry, deposition methods, and device function, the present review reveals the key governing principles of solution development and highlights practical ...
Xinlong Sun, Stephen Beeby
wiley   +1 more source

Market Power in Uranium Enrichment [PDF]

open access: yes
Four firms dominate the international uranium enrichment market. Two reasons for this industrial concentration are (1) enrichment capacity can be used to make nuclear weapons, and hence its spread has been controlled through many mechanisms, including ...
Geoffrey Rothwell
core  

Design and numerical analysis of a 3 kWe flameless microturbine combustor for hydrogen fuel [PDF]

open access: yes, 2019
In this work, a new 3 kWe flameless combustor for hydrogen fuel is designed and analyzed using CFD simulation. The strategy of the design is to provide a large volumetric combustion for hydrogen fuel without significant rise of the temperature.
Gohari Darabkhani, H, Bazooyar, B
core   +1 more source

Impact of hydrogen fraction and operating parameters on a regenerative gas turbine's thermodynamic and emission behavior

open access: yesResults in Engineering
Gas turbine power plants are essential to global energy production. This study presents a comprehensive analysis of the effects of hydrogen enrichment and regenerative cycles on the performance and emissions of gas turbines.
Abdalazeem Adam   +2 more
doaj   +1 more source

Numerical Simulation Study on the Impact of Hydrogen Injection Quantities on Engine Performance and Emission Characteristics at Variable Speeds [PDF]

open access: yesSVU-International Journal of Engineering Sciences and Applications
Hydrogen is a promising clean fuel for dual-fuel diesel engines, aiming to enhance efficiency and reduce emissions. This study employs ANSYS Forte simulations to investigate hydrogen injection ratios (15–70%) at engine speeds between 1400 and 2500 RPM ...
Mahmoud Awaga   +3 more
doaj   +1 more source

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