Turbulent burning velocity of stoichiometric syngas flames with different hydrogen volumetric fractions upon constant-volume method with multi-zone model

被引：32

作者：

Sun, Z. Y. ^{[1
,2
]}

Xu, CangSu ^{[3
]}

机构：

[1] Beijing Jiaotong Univ, Sch Mech Elect & Control Engn, Beijing 100044, Peoples R China

[2] Beijing Jiaotong Univ, Beijing Key Lab Powertrain New Energy Vehicle, Beijing 100044, Peoples R China

[3] Zhejiang Univ, Coll Energy Engn, Hangzhou 310027, Peoples R China

来源：

INTERNATIONAL JOURNAL OF HYDROGEN ENERGY | 2020年 / 45卷 / 07期

关键词：

Stoichiometric syngas; Turbulent burning velocity; Turbulence effects; Fuel composition effects; Constant volume method; Explicit correlation; HIGH-PRESSURE; PREMIXED FLAMES; EXPLOSION CHARACTERISTICS; COMBUSTION CHARACTERISTICS; FRONT STRUCTURE; AIR MIXTURES; GAS; METHANE; SPEED; ACCELERATION;

D O I：

10.1016/j.ijhydene.2019.12.054

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：

Syngas has been widely concerned and tested in various thermo-power devices as one promising alternative fuel. However, little is known about the turbulent combustion characteristics, especially on outwardly propagating turbulent syngas/air premixed flames. In this paper, the outwardly propagating turbulent syngas/air premixed flames were experimentally investigated in a constant-volume fan-stirred vessel. Tests were conducted on stoichiometric syngas with different hydrogen volumetric fractions (X-H2, 10%-90%) in the ambience with different initial turbulence intensity (u'(rms), 0.100 m/s similar to 1.309 m/s). Turbulent burning velocity was taken as the major topic to be studied upon the multi-zone model in constant-volume propagating flame method. The influences of initial turbulent intensity and hydrogen volumetric fraction on the turbulent flame speed were analysed and discussed. An explicit correlation of turbulent flame speed was obtained from the experimental results. (C) 2019 Hydrogen Energy Publications LLC. Published by Elsevier Ltd. All rights reserved.

引用

页码：4969 / 4978

页数：10

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