Measuring the Surface Temperature of a Molecular Beam Probe in the Flame Front at Pressures of 1–5 atm

A. M. Dmitriev; M. V. Agafontsev; E. L. Loboda; D. A. Knyazkov; O. P. Korobeinichev

doi:10.1134/S0010508219050058

Measuring the Surface Temperature of a Molecular Beam Probe in the Flame Front at Pressures of 1–5 atm

A. M. Dmitriev, M. V. Agafontsev, E. L. Loboda, D. A. Knyazkov, O. P. Korobeinichev

Research output: Contribution to journal › Article › peer-review

Abstract

Probe sampling of gases is widely used in studies of high-temperature oxidation processes. This method directly provides information on the chemical composition of the reaction volume; however, the probe inevitably introduces thermal and gas-dynamic perturbations into the system. In this work, surface temperature profiles of a quartz probe in a premixed CH₄/O₂/Ar flame were measured at pressures of 1–5 atm. The measurements were made by a non-contact method using an IR camera, which was calibrated by thermocouple measurements taking into account flame shielding. The obtained data can be used as boundary conditions for numerical simulation of the sampling process, which will significantly improve the accuracy in error estimation when using probe sampling methods.

Original language	English
Pages (from-to)	555-561
Number of pages	7
Journal	Combustion, Explosion and Shock Waves
Volume	55
Issue number	5
DOIs	https://doi.org/10.1134/S0010508219050058
Publication status	Published - 1 Sep 2019

Keywords

high pressure
laminar flame
microthermocouples
probe perturbations
thermography

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title = "Measuring the Surface Temperature of a Molecular Beam Probe in the Flame Front at Pressures of 1–5 atm",

abstract = "Probe sampling of gases is widely used in studies of high-temperature oxidation processes. This method directly provides information on the chemical composition of the reaction volume; however, the probe inevitably introduces thermal and gas-dynamic perturbations into the system. In this work, surface temperature profiles of a quartz probe in a premixed CH4/O2/Ar flame were measured at pressures of 1–5 atm. The measurements were made by a non-contact method using an IR camera, which was calibrated by thermocouple measurements taking into account flame shielding. The obtained data can be used as boundary conditions for numerical simulation of the sampling process, which will significantly improve the accuracy in error estimation when using probe sampling methods.",

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AU - Knyazkov, D. A.

AU - Korobeinichev, O. P.

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