Transition of deflagration to detonation in ethylene-hydrogen-air mixtures

被引：9

作者：

Shamshin, I. O. ^{[1
]}

Kazachenko, M. V. ^{[1
]}

Frolov, S. M. ^{[1
,2
,3
]}

Basevich, V. Ya ^{[1
]}

机构：

[1] Russian Acad Sci, N N Semenov Fed Res Ctr Chem Phys, 4 Kosygin Str, Moscow 119991, Russia

[2] Russian Acad Sci, AG Merzhanov Inst Struct Macrokinet & Mat Sci, 8 Acad,Osipyan Str, Chernogolovka 142432, Moscow, Russia

[3] Russian Acad Sci, N N Semenov Fed Res Ctr Chem Phys, 4 Kosygin Str, Moscow 119991, Russia

来源：

INTERNATIONAL JOURNAL OF HYDROGEN ENERGY | 2022年 / 47卷 / 37期

关键词：

Ethylene-hydrogen-air mixtures; Deflagration-to-detonation; transition; Run-up time; Run-up distance; Pulse-detonation tube; LAMINAR FLAME SPEEDS; IGNITION; METHANE; OXIDATION; FUEL;

D O I：

10.1016/j.ijhydene.2022.03.158

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

The results of systematic experiments on deflagration-to-detonation transition (DDT) in homogeneous ethylene-hydrogen-air mixtures at normal pressure and temperature conditions are reported. Experiments are performed in a pulse-detonation tube of three different configurations with one open end. Hydrogen content and fuel-to-air equivalence ratio in the mixture are varied from 0 to 100% and from 0.5 to 3.5, respectively. The measured DDT run-up distance and time are shown to sharply decrease only at hydrogen content exceeding 70%vol. in the tube of all three configurations. The observed effect is explained by multidirectional influence of hydrogen addition on the mixture physicochemical properties relevant to the DDT phenomenon. (c) 2022 Hydrogen Energy Publications LLC. Published by Elsevier Ltd. All rights reserved.

引用

页码：16676 / 16685

页数：10

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