Shock-Tube Kinetics Studies of Formaldehyde Oxidation Reactions Involving NO2, NO, and N2O with and without O2.

1983 ◽  
Author(s):  
K. G. P. Sulzmann
Keyword(s):  
Shock Tube ◽  
Oxidation Reactions ◽  
Kinetics Studies ◽  
Formaldehyde Oxidation

scholarly journals Computational Design of Sensitized Combustion Chemistry Experiments

2021 ◽  
Vol 7 ◽  
Author(s):  
Cody Ising ◽  
Pedro Rodriguez ◽  
Daniel Lopez ◽  
Jeffrey Santner
Keyword(s):  
Shock Tube ◽  
Initial Conditions ◽  
Computational Design ◽  
Reaction Rates ◽  
Oxidation Reactions ◽  
Combustion Chemistry ◽  
Experimental Conditions ◽  
As Species ◽  
User Friendly

In combustion chemistry experiments, reaction rates are often extracted from complex experiments using detailed models. To aid in this process, experiments are performed such that measurable quantities, such as species concentrations, flame speed, and ignition delay, are sensitive to reaction rates of interest. In this work, a systematic method for determining such sensitized experimental conditions is demonstrated. An open-source python script was created using the Cantera module to simulate thousands of 0D and hundreds of 1D combustion chemistry experiments in parallel across a broad, user-defined range of mixture conditions. The results of the simulation are post-processed to normalize and compare sensitivity values among reactions and across initial conditions for time-varying and steady-state simulations, in order to determine the “most useful” experimental conditions. This software can be utilized by researchers as a fast, user-friendly screening tool to determine the thermodynamic and mixture parameters for an experimental campaign. We demonstrate this software through two case studies comparing results of the 0D script against a shock tube experiment and results of the 1D script against a spherical flame experiment. In the shock tube case study we present mixture conditions compared to those used in the literature to study H + O2 (+M)→HO2(+M). In the flame case study, we present mixture conditions compared to those in the literature to study formyl radical (HCO) decomposition and oxidation reactions. The systematically determined experimental conditions identified in the present work are similar to the conditions chosen in the literature.

Shock-initiated exothermic reactions. VI. The oxidation of ethylene oxide and cyclopropane

1969 ◽  
Vol 22 (7) ◽  
pp. 1355 ◽  
Author(s):  
LJ Drummond ◽  
J Kikkert
Keyword(s):  
Shock Waves ◽  
Ethylene Oxide ◽  
Shock Tube ◽  
Induction Period ◽  
Ignition Delay ◽  
Exothermic Reactions ◽  
Induction Periods ◽  
Reflected Shock ◽  
Formaldehyde Oxidation ◽  
Temperature Dependences

Mixtures of ethylene oxide or cyclopropane with oxygen and argon were ignited with reflected shock waves In a shock tube. The temperature dependences of the ignition delay and the growth of light emitted during the induction period to explosion of C2H4O-O2 mixtures indicate that the rate-controlling reaction is that of formaldehyde oxidation. The temperature dependence of induction periods for C3H6-O2 mixtures suggests that a complicated but undetermined mechanism controls the delay to ignition.

scholarly journals Sensitive and rapid laser diagnostic for shock tube kinetics studies using cavity-enhanced absorption spectroscopy

2014 ◽  
Vol 22 (8) ◽  
pp. 9291 ◽  
Author(s):  
Kai Sun ◽  
Shengkai Wang ◽  
Ritobrata Sur ◽  
Xing Chao ◽  
Jay B. Jeffries ◽  
...  
Keyword(s):  
Shock Tube ◽  
Absorption Spectroscopy ◽  
Enhanced Absorption ◽  
Kinetics Studies ◽  
Cavity Enhanced Absorption Spectroscopy ◽  
Laser Diagnostic

Surface oxygen vacancies on Co3O4 mediated catalytic formaldehyde oxidation at room temperature

2016 ◽  
Vol 6 (11) ◽  
pp. 3845-3853 ◽  
Author(s):  
Zhong Wang ◽  
Wenzhong Wang ◽  
Ling Zhang ◽  
Dong Jiang
Keyword(s):  
Catalytic Oxidation ◽  
Room Temperature ◽  
Oxygen Vacancies ◽  
Essential Role ◽  
Surface Oxygen ◽  
Oxidation Reactions ◽  
Major Activity ◽  
Formaldehyde Oxidation ◽  
The Common

This study reveals the essential role played by surface oxygen vacancies in catalytic oxidation reactions, and complements the common viewpoint that Co3+ is the major activity species in Co3O4-based systems.

Laser photolysis shock tube for combustion kinetics studies

1989 ◽  
Vol 22 (1) ◽  
pp. 1877-1885 ◽  
Author(s):  
David F. Davidson ◽  
Albert Y. Chang ◽  
Ronald K. Hanson
Keyword(s):  
Shock Tube ◽  
Laser Photolysis ◽  
Combustion Kinetics ◽  
Kinetics Studies

C-atom ARAS diagnostic for shock tube kinetics studies

1990 ◽  
Author(s):  
A. J. Dean ◽  
D. F. Davidson ◽  
R. K. Hanson
Keyword(s):  
Shock Tube ◽  
Kinetics Studies

IR laser absorption diagnostic for C2H4 in shock tube kinetics studies

2012 ◽  
Vol 44 (6) ◽  
pp. 423-432 ◽  
Author(s):  
Wei Ren ◽  
David F. Davidson ◽  
Ronald K. Hanson
Keyword(s):  
Shock Tube ◽  
Laser Absorption ◽  
Kinetics Studies ◽  
Ir Laser
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