Results 101 to 110 of about 5,746 (302)

Visualization of Aluminum Dust Flame Propagation in a Square-Section Tube

open access: yesChemical Engineering Transactions, 2018
Metallic dust explosion is a challenging research topic. One key point of investigation is the flame propagation velocity, which can be determined experimentally by direct visualization of the explosions.
Clement Chanut   +3 more
doaj   +1 more source

Advanced Optical and 3D Reconstruction Diagnostics for Combustion and Fluids Research [PDF]

open access: yes, 2012
Imaging based optical diagnostics have played an important role in combustion and fluids studies. However, most imaging techniques are two dimensional.
Wang, Qian
core  

Hydrodynamic theory of premixed flames propagating in closed vessels: flame speed and Markstein lengths

open access: yesJournal of Fluid Mechanics
A hydrodynamic theory of premixed flame propagation within closed vessels is developed assuming the flame is much thinner than all other fluid dynamic lengths. In this limit, the flame is confined to a surface separating the unburned mixture from burned combustion products, and propagates at a speed determined from the analysis of its internal ...
John K. Bechtold   +2 more
openaire   +2 more sources

Turbulent flame propagation and combustion in spark ignition engines [PDF]

open access: yes, 1983
Pressure measurements synchronized with high-speed motion picture records of flame propagation have been made in a transparent piston engine. The data show that the initial expansion speed of the flame front is close to that of a laminar flame.
Rashidi M.   +2 more
core  

Green Fuel Combustion Synthesis of CeO2 and Ag/CeO2 Nanoparticles for Photocatalytic and Antibacterial Applications

open access: yesAsia-Pacific Journal of Chemical Engineering, EarlyView.
ABSTRACT Silver‐doped cerium oxide nanoparticles (Ag/CeO2 NPs) were synthesized using Ricinus communis seed extract as a bio‐derived fuel in a solution combustion method. The combustion reaction, carried out at 450°C with AgNO3 and (NH4)2[Ce (NO3)6] as metal precursors, produced CeO2 and Ag/CeO2 NPs.
T. N. Ravishankar   +5 more
wiley   +1 more source

Study on the shock wave and flame propagation characteristics of gas explosion in multi-branch tunnel network

open access: yesCase Studies in Thermal Engineering
To study the explosion shock wave propagation law and flame propagation mechanism within a multibranch complex tunnel network, we built a multibranch complex pipeline experimental system consisting of parallel and angular branches.
Niu Yihui   +7 more
doaj   +1 more source

Measurement and modelling of combustion in a spark ignition engine [PDF]

open access: yes, 1991
This thesis was submitted for the degree of Doctor of Philosophy and awarded by Brunel University.A study has been conducted into the causes of cycle by cycle variations in combustion within a spark ignition engine, the best measured engine parameter to ...
Brown, Andrew Gavin
core  

Thermal Calculations for Co‐Firing of Hydrogen/Ammonia and Coal in 660‐MW Coal‐Fired Boilers

open access: yesAsia-Pacific Journal of Chemical Engineering, EarlyView.
ABSTRACT To achieve a clean energy transition under the dual carbon goals, blending hydrogen/ammonia into pulverized coal boilers represents a key technological pathway. Different hydrogen/ammonia co‐firing ratios (5%–50%) are investigated for their impact on the thermodynamic characteristics of 660‐MW supercritical boiler at 100% and 20% boiler ...
Yaodong Da   +7 more
wiley   +1 more source

Modeling of hydrogen-enriched natural gas on flame speed propagation

open access: yesJournal of Physics: Conference Series
Abstract This study investigates the effects of hydrogen addition on the laminar flame speed of natural gas using computational simulations performed with Cantera. The calculated laminar flame speed of hydrogen-enriched natural gas mixtures was simulated across a range of equivalence ratios (0.6-2) and hydrogen fractions (0-25% by volume)
Branislav Zvada   +4 more
openaire   +1 more source

Flame propagation of hydrogen combustion [PDF]

open access: yes, 2022
In recent years the urge to make future fuels market ready and understand their potentials and risks has become considerably higher. Hydrogen as one of a limited number of zero emission fuels is getting more interesting in terms of supporting the energy ...
Schurr, Jennifer
core  

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