Published 2019 | Version v1
Book Metadata-only

Self-ignition of H2/O2 and H2/O2/CO mixtures behind reflected shock waves

Creators

  • 1. Natsional'nyj Issledovatel'skij Yadernyj Univ. «MIFI», Moscow (Russian Federation)
  • 2. Inst. Khimicheskoj Fiziki im. N.N. Semenova Rossijskoj Akademii Nauk, Moscow (Russian Federation)
  • 3. Inst. Khimicheskoj Fiziki im. N.N. Semenova Rossijskoj Akademii nauk, Moscow (Russian Federation)

Description

Time profiles of the intensities of the absorption by ground-state hydroxyl radicals OH at (λ=306.77 nm) and the emission from electronically excited OH* radicals (A2Σ+→ X2Π transition, λ=310±4 nm) were measured. Based on these measurements, the ignition delay time was determined, as the time interval between the time of arrival of the reflected shock wave and the time of reaching the maximum intensity of OH* emission. The corresponding temperature dependences of the ignition delay times for various H2/O2 and H2/CO/O2 mixtures were plotted. Detailed kinetic simulations of the profiles of electronically excited OH* radicals were performed and compared with the experimentally measured profiles to gain insights into the mechanism of the electronic excitation and quenching of these species

Abstract (Russian)

Проведены экспериментальные измерения временных зависимостей сигналов поглощения гидроксильными радикалами OH (λ=306.77 нм, переход A2Ʃ+→X2П) и излучения (эмиссии) электронно-возбужденных гидроксильных радикалов ОН* (λ=310±4 нм). Из этих измерений определены задержки воспламенения (по максимуму хемилюминесцентного излучения ОН*) и построены температурные зависимости задержек воспламенения для различных исследованных смесей H2/O2 и H2/CO/O2. Также проведены детальные кинетические расчеты профилей электронно-возбужденных частиц ОН* и их сравнение с экспериментально измеренными профилями для уточнения механизмов электронного возбуждения и тушения этих частиц
Part of:
V International conference «Laser, plasma research and technologies» LaPlaz-2019. Collection of scientific papers. Part 1

Additional details

Additional titles

Original title (Russian)
Самовоспламенение смесей Х<суб>2</суб>/О<суб>2</суб> и Х<суб>2</суб>/О<суб>2</суб>/CO в отраженных ударных волнах

Publishing Information

Publisher
NIYaU MIFI
Imprint Place
Moscow (Russian Federation)
ISBN
978-5-7262-2544-9
Imprint Title
V International conference #Left-Pointing Double Angle Quotation Mark#Laser, plasma research and technologies#Right-Pointing Double Angle Quotation Mark# LaPlaz-2019. Collection of scientific papers. Part 1
Imprint Pagination
348 p.
Journal Page Range
p. 267-268

Conference

Title
5. International conference 'Laser, plasma research and technologies' LaPlaz-2019
Original Conference Title
V Mezhdunarodnaya konferentsiya «Lazernye, plazmennye issledovaniya i tekhnologii» LaPlaz-2019
Dates
12-15 Feb 2019
Place
Moscow (Russian Federation)

INIS

Country of Publication
Russian Federation
Country of Input or Organization
Russian Federation
INIS RN
52105686
Subject category
S37: INORGANIC, ORGANIC, PHYSICAL AND ANALYTICAL CHEMISTRY;
Resource subtype / Literary indicator
Conference, Numerical Data
Descriptors DEI
ARGON; AUTOIGNITION; CARBON MONOXIDE; CHEMICAL REACTION KINETICS; EXPERIMENTAL DATA; HYDROGEN; HYDROXYL RADICALS; MIXTURES; OXYGEN; PRESSURE RANGE KILO PA; SPONTANEOUS COMBUSTION; TEMPERATURE DEPENDENCE; TEMPERATURE RANGE 1000-4000 K; TIME DELAY; TIME DEPENDENCE
Descriptors DEC
CARBON COMPOUNDS; CARBON OXIDES; CHALCOGENIDES; CHEMICAL REACTIONS; COMBUSTION; DATA; DISPERSIONS; ELEMENTS; FLUIDS; GASES; IGNITION; INFORMATION; KINETICS; NONMETALS; NUMERICAL DATA; OXIDATION; OXIDES; OXYGEN COMPOUNDS; PRESSURE RANGE; RADICALS; RARE GASES; REACTION KINETICS; TEMPERATURE RANGE; THERMOCHEMICAL PROCESSES

Optional Information

Notes
Imprint:V Mezhdunarodnaya konferentsiya #Left-Pointing Double Angle Quotation Mark#Lazernye, plazmennye issledovaniya i tekhnologii#Right-Pointing Double Angle Quotation Mark# LaPlaz-2019. Sbornik nauchnykh trudov. Chast' 1