Journal ArticleDOI
A shock tube study of recombination in the hydrogen-oxygen reaction using infrared emission from water vapor*
L.S. Blair,R.W. Getzinger +1 more
TLDR
In this paper, the authors studied the growth of infrared emission at 2.7 μ from water vapor formed during the shock-initiated combustion of dilute H2-O2-Ar mixtures.About:
This article is published in Combustion and Flame.The article was published on 1970-02-01. It has received 18 citations till now. The article focuses on the topics: Hydrogen & Water vapor.read more
Citations
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Journal ArticleDOI
Determination of rate parameters based on both direct and indirect measurements
Tamás Turányi,Tibor Nagy,I. Gy. Zsély,M. Cserháti,Tamas Varga,Botond Szabo,Inez Sedyó,Péter T. Kiss,András Zempléni,Henry J. Curran +9 more
TL;DR: In this article, the authors proposed a new approach that takes into account both direct and indirect measurements and optimizes all influential rate parameters, which resulted in the following rate parameters for the investigated reactions: A = 3.003 × 10 10 cm 3 mol −1 s −1, n = 0.965, E/R = 6158 K (T = 950-3550 K).
Journal ArticleDOI
Rate coefficient for H + O2 + M = HO2 + M evaluated from shock tube measurements of induction times
TL;DR: In this article, the authors measured hydrogen-air induction times near the second explosion limit and matched these experimental results with numerically predicted induction times, the rate coefficient for the reaction H + O2 + M = HO2+M was evaluated as k-sub 4,N2 = 3.3 (plus or minus.6) x 10 to the 15 cm to the 6th/sq mole/s.
Journal ArticleDOI
Measurements and interpretation of shock tube ignition delay times in highly CO2 diluted mixtures using multiple diagnostics
TL;DR: In this article, the effect of bifurcation has been examined in high-speed camera imagery in comparison with more standard methods (e.g., pressure, emission, and laser absorption spectroscopy) to measure the ignition delay time.
Journal ArticleDOI
New insights into the shock tube ignition of H2/O2 at low to moderate temperatures using high-speed end-wall imaging
Erik Ninnemann,Batikan Koroglu,Owen Pryor,Samuel Barak,Leigh Nash,Zachary Loparo,Jonathan Sosa,Kareem Ahmed,Subith Vasu +8 more
TL;DR: In this article, the effects of pre-ignition energy releases on H 2 O 2 mixtures were explored in a shock tube with the aid of high-speed imaging and conventional pressure and emission diagnostics.
Journal ArticleDOI
Pressure Dependence and Third Body Effects on the Rate Constants for H+O2, H+NO, and H+CO
TL;DR: In this paper, the third order rate constants for the reactions H+O2+M→ HO 2+M, H+NO+M/H+CO+M+H2+HCO+HO 2+HO2+HO+M were measured by concentration analysis of hydrogen atoms by means of Lyman α photometry.
References
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Journal ArticleDOI
Kinetic Studies of Hydroxyl Radicals in Shock Waves. III. The OH Concentration Maximum in the Hydrogen‐Oxygen Reaction
TL;DR: In this paper, the chemical reaction zone in shock waves in H2-O2-Ar mixtures has been studied in detail using an ultraviolet line absorption technique to measure the OH radical concentration.
Journal ArticleDOI
The concentration of hydroxyl and of oxygen atoms in gases from lean hydrogen-air flames
TL;DR: In this paper, the effects of the addition of small amounts of nitric oxide have been studied, and the relationship between the intensity of light emitted from nitric oxides containing nearly stoichiometric flames and [OH ] is presented.
Journal ArticleDOI
Kinetic Studies of Hydroxyl Radicals in Shock Waves. V. Recombination via the H+O2+M→HO2+M Reaction in Lean Hydrogen—Oxygen Mixtures
R. W. Getzinger,G. L. Schott +1 more
TL;DR: In this paper, the authors used an OH ultraviolet line absorption technique to follow the progress of the reaction after substantial equilibration of the rapid bimolecular reactions which form OH initially and determined that the recombination process is third order and its rate obeys the empirical relationship Rrec=keff[H][O2][Ar].
Journal ArticleDOI
Shock‐Tube Study of the Recombination Rate of Hydrogen Atoms with Oxygen Molecules
TL;DR: In this article, measurements have been made of the rate of chain branching during the induction period of the H2-O2 reaction Mixtures of H2−O2−CO-Ar were shock heated and the ''blue continuum'' emission from the O+CO→CO2+hv reaction was monitored using an end-on technique for sensitivity.
Journal ArticleDOI
Recombination in the hydrogen-oxygen reaction: A shock tube study with nitrogen and water vapour as third bodies
R.W. Getzinger,L.S. Blair +1 more
TL;DR: In this paper, the authors used an OH ultra-violet line absorption technique to follow the progress of the overall reaction at temperatures of 1259° to 1912°K and pressures of 1·1 to 3·7 atm.
Related Papers (5)
Kinetic Studies of Hydroxyl Radicals in Shock Waves. V. Recombination via the H+O2+M→HO2+M Reaction in Lean Hydrogen—Oxygen Mixtures
R. W. Getzinger,G. L. Schott +1 more
Recombination in the hydrogen-oxygen reaction: A shock tube study with nitrogen and water vapour as third bodies
R.W. Getzinger,L.S. Blair +1 more