Results 51 to 60 of about 90,574 (337)
Energy Conversion and Management, 2023 The most important stages determining the qualitative and quantitative characteristics of a combustion process are mixture preparation, ignition, combustion itself and pollutant emissions. Among these, the ignition phe-nomenon stands out in terms of ensuring a reliable operation under every working condition (which also affects subsequent stages).
Harun Yilmaz +3 more
openaire +2 more sources
Unravelling the Secret of Sulfur Confinement and High Sulfur Utilization in Hybrid Sulfur‐Carbons
Advanced Materials, EarlyView.Thermal condensation of inverse vulcanized sulfur‐carbon hybrids enables a bottom‐up sulfur confinement strategy, in which a protective carbon phase is progressively constructed around sulfur species. The resulting carbon nanodomains covalently tether sulfur chains and stabilize radical intermediates. This integrated architecture effectively suppresses
Tim Horner +9 more
wiley +1 more source
Some experimental results on the L-star instability of metallized composite propellants [PDF]
, 1975 Experimental results are reported on the Lstar instability characteristics of three AP I composite propellants. The metal content of the propellants is 2%, 16%, and 16%.
Kumar, R. N.
core
Bayesian models for the determination of resonant frequencies in a DI diesel engine [PDF]
, 2011 A time series method for the determination of combustion chamber resonant frequencies is outlined. This technique employs the use of Markov-chain Monte Carlo (MCMC) to infer parameters in a chosen model of the data.
Bodisco, Tim +3 more
core +2 more sources
Advanced Materials, EarlyView.This table of contents illustrates that the mechanism for mitigating Sr segregation depends strongly on the chemistry of the coating layer. HfO2 electrostatically stabilizes the surface by lowering the surface oxygen vacancies, which serve as the driving force for Sr migration. On the other hand, Al2O3 and Fe2O3 react with segregated Sr to form Sr‐Al‐O
Jongsu Seo +8 more
wiley +1 more source
Journal of Thermal Science and Technology, 2008 In this research, GTL spray combustion was visualized in an optically accessible quiescent constant-volume combustion chamber. The results were compared with the spray combustion of diesel fuel. Fast-speed photography with direct laser sheet illumination
Ulugbek AZIMOV, Ki-Seong KIM
doaj +1 more source
Free Stream Behavior of Hydrogen Released from a Fluidic Oscillating Nozzle
Fluids, 2021 The H2 internal combustion engine (ICE) is a key technology for complete decarbonization of the transport sector. To match or exceed the power density of conventional combustion engines, H2 direct injection (DI) is essential.
Anja Fink +6 more
doaj +1 more source
Experimental and Numerical investigation of hot-jet ignition with shock effects in a constant-volume combustor [PDF]
, 2015 poster abstractA wave rotor, an array of channels arranged around the axis of a cylindrical drum, can be used as a combustor in gas turbine engines in order to reduce the consumption of the fuel by increasing the fuel efficiency.
Khan, Nazmuzzaman +3 more
core
Polymorph‐Specific Electronic Transduction in WO3 during Molecular Sensing
Advanced Materials, EarlyView.Metal‐oxide polymorphs with similar surface chemistry can nevertheless exhibit distinct sensing properties. In γ‐ and ε‐WO3, analyte adsorption appears comparable; yet, only ε‐WO3 induces a pronounced lattice electronic perturbation that accommodates charge in sub‐conduction band minimum states.
Matteo D'Andria +6 more
wiley +1 more source
Energy Conversion and Management: XPre-chamber enrichment for igniting ultra-lean premixed H2/air is an effective strategy for achieving ultra-low emission and improved fuel economy. This study employed a three-dimensional numerical simulation based on a constant volume combustion chamber
Wenchao Zhu +6 more
doaj +1 more source