Results 51 to 60 of about 562 (182)
Journal of Polymer Science, EarlyView.Phosphorus‐modified TPUs are prepared by one‐step, solvent‐free reactive melt processing using phosphate‐ or phosphonate‐containing diols and PEG or PPG soft segments. Fire behavior and mechanical response depend strongly on both chemistries. Peak heat release rate decreases by up to 54%, but reduced tensile strength and V‐2 dripping behavior reveal a ...
Léa Gratier +4 more
wiley +1 more source
Numerical analysis of flame characteristics and stability for conical nozzle burner
Journal of Thermal Engineering, 2019 The stability and the mean structure of methane partially premixed conical burner flames was investigated numerical ly using ANSYS Fluent. The study presents and discusses the stability curves of the partially premixed flame and maps the mean flame ...
Julanda Al Mawali, Sam M Dakka
doaj
Turbulence and Combustion Model Choice for Modeling Methane-air Low Swirl Burners [PDF]
Journal of Applied Fluid MechanicsCombustion plays a major role in satisfying enormous needs in our world, and burners are an essential component of industrial combustion applications. With its flame stabilization technique, low swirl burner (LSB) technology offers interesting outcomes ...
M. Ladjani, M. S. Lounici, S. Ouchikh
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Fluids, 2020 The scale-resolving simulation of a practical gas turbine combustor is performed using a partially premixed finite-rate chemistry combustion model. The combustion model assumes finite-rate chemistry by limiting the chemical reaction rate with flame speed.
Kai Zhang +2 more
doaj +1 more source
In situ mapping of iron oxidation in laminar metal fuel flames using X‐ray absorption spectroscopy
Journal of Synchrotron Radiation, EarlyView.For the first time an iron metal flame has been mapped by in situ X‐ray absorption spectroscopy. Strong gradients in oxidation state and phase composition across the metallic core and the flame front were found with FeO peaking at the visible flame front and Fe3O4 forming further beyond.Metal fuels such as iron are promising carbon‐free energy carriers
Lukas Braun +7 more
wiley +1 more source
Journal of Combustion, 2022 Lean premixed (LPM) combustion processes are of increased interest to the gas turbine industry due to their reduction in harmful emissions. These processes are susceptible to thermoacoustic instabilities, which are produced when energy added by an in ...
Cody Dowd, Joseph Meadows
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Synthesis of functionalized polyolefins in a new continuous bench‐scale reactor apparatus
AIChE Journal, Volume 72, Issue 9, September 2026.Abstract In‐reactor functionalized polyolefins (FPOs), produced by molecular catalysts, are a new class of polymer materials with applications ranging from high performance adhesives to bitumen compatibilization. In this work, we disclose a procedure for the synthesis of FPOs in a new Continuous Bench‐scale Reactor Apparatus (COBRA).
Miloud Bouyahyi +7 more
wiley +1 more source
Leading-Edge Velocities and Lifted Methane Jet Flame Stability
Journal of Combustion, 2010 Current interest exists in understanding reaction-zone dynamics and mechanisms with respect to how they counterpropagate against incoming reactants.
W. Wang, K. M. Lyons
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Engineering Applications of Computational Fluid Mechanics, 2021 This work evaluates the capabilities of Large Eddy Simulation with perfectly stirred reactor (PSR) assumption and detailed chemistry to predict unsteady, premixed, hydrogen combustion sequences.
F. Nicolás-Pérez +5 more
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Case Studies in Thermal Engineering, 2022 This study explores the application of a partially-premixed and pre-evaporated air-assisted fuel supply device used in a trapped-vortex cavity. The lean-ignition fuel-air ratio (FAR) was measured under different device structures, total pressures, and ...
Yuxuan Zhang, Xiaomin He
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