Effect of hydrogen enrichment on the auto-ignition of lean n-pentane/Hydrogen mixtures at elevated pressure

被引：0

作者：

Jiang, Xue ^{[1
]}

Deng, Fuquan ^{[1
]}

Pan, Youshun ^{[1
]}

Sun, Wuchuan ^{[1
]}

Huang, Zuohua ^{[1
]}

机构：

[1] Xi An Jiao Tong Univ, State Key Lab Multiphase Flows Power Engn, Xian 710049, Peoples R China

来源：

INTERNATIONAL JOURNAL OF HYDROGEN ENERGY | 2020年 / 45卷 / 55期

基金：

中国博士后科学基金; 中国国家自然科学基金;

关键词：

Hydrogen; n-Pentane; Ignition delay; Chemical kinetic; Fuel blending; OXYGEN-ARGON MIXTURES; LAMINAR FLAME SPEEDS; GAS BLEND OXIDATION; DELAY TIMES; SHOCK-TUBE; NATURAL-GAS; BURNING VELOCITY; BUTANE BLENDS; METHANE; AIR;

D O I：

10.1016/j.ijhydene.2020.08.004

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：

To understand the synergistic effect of hydrogen-enriched combustion of hydrocarbons in the high temperatures, ignition delay times of lean (phi = 0.5) n-pentane/hydrogen mixtures with various hydrogen volumetric contents (X-H2 = 0-95%) were measured in a shock tube at pressures of 2, 10 and 20 atm. As expected, the ignition delay time of n-pentane is decreased when doping with hydrogen. Interestingly, the effect of hydrogen addition on auto-ignition is nonlinear. Note that even the hydrogen proportion is as large as 95%, the ignition delay time of the binary mixture exhibits the n-pentane-like activation energy and pressure dependence characteristics. Reasons for the above-mentioned behaviors were analyzed. (C) 2020 Hydrogen Energy Publications LLC. Published by Elsevier Ltd. All rights reserved.

引用

页码：31105 / 31117

页数：13

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