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
Mass spectrometer with magnetic analyser for low density plasma studies
TL;DR: The design of a new mass spectrometer for the study of positive and negative ions in flames burning at low pressure is described and the requirements of the ion inlet system with reference to peak shape of the mass spectra obtained are discussed.
Journal ArticleDOI
Some observations of the NO+ ion and neutral no in atmospheric pressure flames of acetylene and hydrogen
N.A. Burdett,A.N. Hayhurst +1 more
TL;DR: In this paper, mass spectrometric measurements of positive and negative ions in flames of either C2H2 or H2 burning in O2 with N2 as diluent have shown that the reaction NO + H 3 O + ⇌ N O + + + H 2 O + H (I) is balanced fairly quickly in the burnt gases.
Journal ArticleDOI
Temperature measurements on the surface of a sampling probe in a flame
TL;DR: In this paper, the temperature profiles of the quartz probe surface in the CH4/O2/Ar flames were measured in a pressure range of 1-5 atm. The measurements were carried out by thermographic method using an IR camera.
Journal ArticleDOI
Reactions of positive halogen ions in flames and their rate coefficients
TL;DR: In this paper, the disappearance of I+ from the burnt gases of flames from 1820 to 2650 K has been studied in detail and proves to be by three routes involving: I++ e−+ M → I + M, (III), I++ I−→ I + I, (IV), I+ H2O = I+. H2 O and (− XV), I+, H2H → H3O++ I.
Related Papers (5)
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