Journal ArticleDOI
Mass spectrometric sampling of flames: how ionic equilibria in flames produce sampling falsifications and “fake” ions, but provide kinetic and thermodynamic data on the reaction occurring
TLDR
In this paper, it was shown that if a positive ion reacts exothermally in a reversible reaction with a time constant briefer than ≈ 0.5 µs, that reaction will be equilibrated early in the flame and if the orifice is small, the equilibrium will be just fast enough to shift position to that for a temperature reduced in both the thermal boundary layer around the inlet, and in accelerating to the speed of sound.About:
This article is published in Progress in Energy and Combustion Science.The article was published on 2022-01-01. It has received 5 citations till now. The article focuses on the topics: Chemistry & Body orifice.read more
Citations
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Journal ArticleDOI
Cationic structure of premixed near-stoichiometric CH4/O2/Ar flames at atmospheric pressure: New insights from mass spectrometry, quantum chemistry, and kinetic modeling
Denis A. Knyazkov,Ilya E. Gerasimov,Tatyana A. Bolshova,Vitaly G. Kiselev,Andrey G. Shmakov,A. A. Paletsky +5 more
TL;DR: In this article , the effect of a nickel sampling cone used in the measurements on the flame was comprehensively modeled using a two-dimensional direct numerical simulation of reacting flow near the axially symmetric probe along with a reduced chemical kinetic mechanism.
Journal ArticleDOI
Technologies Integration towards Bio-fuels Production: A State-of-the-art Review
TL;DR: In this paper , a comprehensive review concerning the state-of-the-art conceptual designs of technologies integration as well as their performances is urgently needed for promoting future development of integrated bio-fuels production technologies.
Journal ArticleDOI
Investigation on the Effect of Charge Injection from Non-Thermal Plasma on Soot Formation in Laminar Coflow Diffusion Flame
Yong Tan,Yichen Zong,Maurin Salamanca,Jacob W. Martin,Jochen A.H. Dreyer,Jethro Akroyd,Wenming Yang,Markus Kraft +7 more
TL;DR: In this article , a modified coflow burner was developed to study the effect of charge injection from a nonthermal plasma into three helium-diluted laminar coflow diffusion ethylene flames.
Journal ArticleDOI
Experimental and kinetic modeling study of the positive ions in premixed ethylene flames over a range of equivalence ratios
Denis A. Knyazkov,Andrey V. Cherepanov,Vitaly G. Kiselev,Ilya E. Gerasimov,Tina Kasper,Andrey G. Shmakov +5 more
TL;DR: In this paper , the spatial distributions of positive ions in atmospheric-pressure burner-stabilized premixed flames of ethylene/oxygen/argon mixtures in a wide range of equivalence ratios ϕ = 0.4÷1.5.
Journal ArticleDOI
A Review on 1-D Nanomaterials: Scaling-Up with Gas-Phase Synthesis.
TL;DR: In this paper , a review of recent developments, applications, and capabilities in gas-phase synthesis methods of nanowire arrays is presented, as well as remaining challenges and needs are addressed to advance this field.
References
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Journal ArticleDOI
Reactions of h3o+ ions with free atoms of copper and with molecules of cuoh in gaseous flames
Carl J. Butler,Allan N. Hayhurst +1 more
TL;DR: In this article, the authors investigated charge exchange and proton-transfer reactions of the ions with atoms and compounds of copper in the burnt gases of premixed flames at atmospheric pressure using a quadrurupole mass spectrometer.
Journal ArticleDOI
Comparison of electron scavengers in a hydrocarbon flame: anion formation with SF6, (CF3SO2)2O, SO2 and CH3Cl additives
TL;DR: In this article, a comparison is made of four flame additives including SF6, (CF3SO2)2O, SO2 and CH3Cl, which scavenge free electrons by the formation of negative ions.
Journal ArticleDOI
Some observations on the production and recombination of ions and electrons from metallic additives in hydrogen and hydrocarbon flames
P.J. Padley,T.M. Sugden +1 more
Journal ArticleDOI
The sampling of nanoparticles of MgO formed when doping an oxygen-rich flame with magnesium: The measurement of the concentrations and size-distributions of these nanoparticles
TL;DR: In this paper, a technique for measuring the concentrations and size distributions of nanoparticles of the oxide of Mg (and similar elements with involatile oxides), when an oxygen-rich flame is doped with an appropriate metal is considered.
Journal ArticleDOI
Behaviour of electron acceptors in low-pressure acetylene oxygen flames
E. M. Bulewicz,P. J. Padley +1 more
TL;DR: In this paper, the electron affinities of chlorine and bromine were deduced to be 83.0 ± 0.5 and (E.A.CI−4.5)± 0.4 kcal/mole respectively.
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Hydration of gas-phase ions and the measurement of boundary-layer cooling during flame sampling into a mass spectrometer
Electrical effects during the mass spectrometric sampling of ions from hot flame gases at atmospheric pressure
S.D.T. Axford,Allan N. Hayhurst +1 more