Results 51 to 60 of about 15,086 (244)

The Future of Hydrogen‐Powered Aviation: Technologies, Challenges, and a Strategic Roadmap for Sustainable Decarbonization

open access: yesAdvanced Energy and Sustainability Research, EarlyView.
Hydrogen‐powered aviation offers a transformative pathway to zero‐emission flight by eliminating in‐flight CO2 emissions. Key considerations include propulsion systems (fuel cells and hydrogen combustion), cryogenic storage and insulation challenges, infrastructure and cost barriers, and supply‐chain constraints.
Mubasshira   +4 more
wiley   +1 more source

Research progress of moderate or intense low-oxygen dilution (MILD) combustion of pulverized coal in high-speed jet

open access: yesMeitan xuebao, 2023
Developing a cleaner and more efficient combustion technology of pulverized coal is an important way to deal with the increasingly serious environmental pollution.
Wenshi HUANG   +3 more
doaj   +1 more source

Laser ignition of methane jets in homogenous and isotropic turbulence

open access: yes2018 AIAA Aerospace Sciences Meeting, 2018
The ignition of a pulsed methane jet by a laser-induced spark was investigated in air under the influence of homogenous and isotropic turbulence with zero mean flow. In this way, the contribution of the turbulent velocity fluctuations of the environment can be isolated from the mean flow component.
Chen, C, Charalampous, G, Hardalupas, Y
openaire   +2 more sources

Unveiling Localized Heat in Lithium‐Ion Cells for Intelligent Temperature Sensing

open access: yesAdvanced Energy and Sustainability Research, EarlyView.
Heat generation, thermal responses, and intelligent management in batteries. Lithium‐ion batteries (LIBs) power electric vehicles, portable electronics, and grid‐scale storage, yet their safety, performance, and lifetime are constrained by thermal effects.
Yunke Wang   +6 more
wiley   +1 more source

Results of 1/4-Scale Experiments. Vapor Simulant And Liquid Jet A Tests [PDF]

open access: yes, 2000
A quarter-scale engineering model of the center wing tank (CWT) of a 747-100 was constructed. This engineering model replicated the compartmentalization, passageways, and venting to the atmosphere.
Birky, M. M.   +6 more
core  

Hydrogen‐Enriched Microbial Oil Biodiesel With Hybrid Nanoparticles Impact on Diesel Engine Efficiency and Emissions

open access: yesAsia-Pacific Journal of Chemical Engineering, EarlyView.
ABSTRACT This study examines a dual‐fuel enhancement strategy that combines hydrogen enrichment with hybrid nanoparticle (HNP) doping. The aim is to improve combustion, performance, and emission characteristics of microbial oil biodiesel (MOB) in compression ignition engines.
D. Premkumar   +3 more
wiley   +1 more source

Initiation of the detonation in the gravitationally confined detonation model of Type Ia supernovae

open access: yes, 2009
We study the initiation of the detonation in the gravitationally confined detonation (GCD) model of Type Ia supernovae (SNe Ia). Initiation of the detonation occurs spontaneously in a region where the length scale of the temperature gradient extending ...
Blinnikov   +27 more
core   +1 more source

The role of chemistry in the oscillating combustion of hydrocarbons : an experimental and theoretical study [PDF]

open access: yes, 2020
The stable operation of low-temperature combustion processes is an open challenge, due to the presence of undesired deviations from steady-state conditions: among them, oscillatory behaviors have been raising significant interest.
Battin-Leclerc, Frédérique   +7 more
core   +2 more sources

Research on Optimization of Flow Field and Combustion Performance in Boilers With Combined Near‐Wall Air Supply Systems

open access: yesAsia-Pacific Journal of Chemical Engineering, EarlyView.
ABSTRACT In the pulverized coal boiler industry, reducing NOx emissions has become a critical objective. Although low‐NOx combustion technologies are effective, they may lead to localized high‐temperature corrosion. To address this issue, near‐wall air supply technology has been introduced, which involves injecting an appropriate amount of air near the
Wangyongjia Zhong   +4 more
wiley   +1 more source

Traversing Hot-Jet Ignition in a Constant-Volume Combustor [PDF]

open access: yes, 2014
Hot-jet ignition of a combustible mixture has application in internal combustion engines, detonation initiation, and wave rotor combustion. Numerical predictions are made for ignition of combustible mixtures using a traversing jet of chemically active ...
Karimi, Abdullah   +2 more
core  

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