Effect of inert and reactive gas additives to hydrogen and air on blow-off of flame at hydrogen release from microleakage

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Effect of inert and reactive gas additives to hydrogen and air on blow-off of flame at hydrogen release from microleakage. / Shmakov, A. G.; Kozlov, V. V.; Litvinenko, M. V. et al.

In: International Journal of Hydrogen Energy, Vol. 46, No. 2, 06.01.2021, p. 2796-2803.

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

BibTeX

@article{2e169e676037403ea290eb8a7ccf1fa4,

title = "Effect of inert and reactive gas additives to hydrogen and air on blow-off of flame at hydrogen release from microleakage",

abstract = "This paper presents experimental data on the effect of inert (He, N2, Ar, CO2) and reactive (СН4, O2, CF3Br, (CH3O)3PO) gas additives to hydrogen and ambient air on flame blow-off during diffusion combustion of a hydrogen microjet emanating from a micronozzle into air. It is found that the addition of the above gases to hydrogen narrows the microjet velocity range of stable combustion of hydrogen. For hydrogen with the additives studied, the critical velocity of flame blow-off depends primarily on the mean molecular weight of the combustible mixture. When the gases are added to the air surrounding the diffusion flame, the critical velocity of flame blow-off is determined by their inhibiting effect on the chemical reactions of hydrogen oxidation. The results can be used to determine the minimum concentrations of flame-suppressing additives required to prevent the ignition and combustion of hydrogen in its accidental releases.",

keywords = "Fire retardant, Flame blow-off, Hydrogen microjet flame, Inhibitor, Round micronozzle, INHIBITION, DISPERSION, NOZZLE, SCHLIEREN, DIFFUSION COMBUSTION, RANGE",

author = "Shmakov, {A. G.} and Kozlov, {V. V.} and Litvinenko, {M. V.} and Litvinenko, {Yu A.}",

year = "2021",

month = jan,

day = "6",

doi = "10.1016/j.ijhydene.2020.10.088",

language = "English",

volume = "46",

pages = "2796--2803",

journal = "International Journal of Hydrogen Energy",

issn = "0360-3199",

publisher = "Elsevier Ltd",

number = "2",

}

RIS

TY - JOUR

T1 - Effect of inert and reactive gas additives to hydrogen and air on blow-off of flame at hydrogen release from microleakage

AU - Shmakov, A. G.

AU - Kozlov, V. V.

AU - Litvinenko, M. V.

AU - Litvinenko, Yu A.

PY - 2021/1/6

Y1 - 2021/1/6

N2 - This paper presents experimental data on the effect of inert (He, N2, Ar, CO2) and reactive (СН4, O2, CF3Br, (CH3O)3PO) gas additives to hydrogen and ambient air on flame blow-off during diffusion combustion of a hydrogen microjet emanating from a micronozzle into air. It is found that the addition of the above gases to hydrogen narrows the microjet velocity range of stable combustion of hydrogen. For hydrogen with the additives studied, the critical velocity of flame blow-off depends primarily on the mean molecular weight of the combustible mixture. When the gases are added to the air surrounding the diffusion flame, the critical velocity of flame blow-off is determined by their inhibiting effect on the chemical reactions of hydrogen oxidation. The results can be used to determine the minimum concentrations of flame-suppressing additives required to prevent the ignition and combustion of hydrogen in its accidental releases.

AB - This paper presents experimental data on the effect of inert (He, N2, Ar, CO2) and reactive (СН4, O2, CF3Br, (CH3O)3PO) gas additives to hydrogen and ambient air on flame blow-off during diffusion combustion of a hydrogen microjet emanating from a micronozzle into air. It is found that the addition of the above gases to hydrogen narrows the microjet velocity range of stable combustion of hydrogen. For hydrogen with the additives studied, the critical velocity of flame blow-off depends primarily on the mean molecular weight of the combustible mixture. When the gases are added to the air surrounding the diffusion flame, the critical velocity of flame blow-off is determined by their inhibiting effect on the chemical reactions of hydrogen oxidation. The results can be used to determine the minimum concentrations of flame-suppressing additives required to prevent the ignition and combustion of hydrogen in its accidental releases.

KW - Fire retardant

KW - Flame blow-off

KW - Hydrogen microjet flame

KW - Inhibitor

KW - Round micronozzle

KW - INHIBITION

KW - DISPERSION

KW - NOZZLE

KW - SCHLIEREN

KW - DIFFUSION COMBUSTION

KW - RANGE

UR - http://www.scopus.com/inward/record.url?scp=85095835461&partnerID=8YFLogxK

U2 - 10.1016/j.ijhydene.2020.10.088

DO - 10.1016/j.ijhydene.2020.10.088

M3 - Article

AN - SCOPUS:85095835461

VL - 46

SP - 2796

EP - 2803

JO - International Journal of Hydrogen Energy

JF - International Journal of Hydrogen Energy

SN - 0360-3199

IS - 2

ER -

ID: 25992807