Study of laminar combustion characteristics of gasoline surrogate fuel-hydrogen-air premixed flames

被引：45

作者：

He, Xu ^{[1
,2
]}

Hou, Xinghe ^{[1
,2
]}

Yang, Qing ^{[1
,2
]}

Ma, Xiqun ^{[1
,2
]}

Tian, Guohong ^{[3
]}

Liu, Fushui ^{[1
,2
]}

机构：

[1] Beijing Inst Technol, Sch Mech Engn, Beijing 100081, Peoples R China

[2] Collaborat Innovat Ctr Elect Vehicles, Beijing, Peoples R China

[3] Univ Surrey, Dept Mech Engn Sci, Guildford GU27XH, Surrey, England

来源：

INTERNATIONAL JOURNAL OF HYDROGEN ENERGY | 2019年 / 44卷 / 26期

关键词：

Gasoline surrogate; Hydrogen; Laminar combustion characteristics; Nonlinear fitting; ISO-OCTANE-AIR; BURNING VELOCITIES; MARKSTEIN LENGTHS; N-HEPTANE; ELEVATED PRESSURES; SPHERICAL FLAMES; METHANE; MIXTURES; SPEEDS; PROPAGATION;

D O I：

10.1016/j.ijhydene.2019.03.009

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：

This paper investigated the effects of hydrogen addition to gasoline surrogates fuel-air mixture on the premixed spherical flame laminar combustion characteristics. The experiments were carried out by high speed Schlieren photography on a constant-volume combustion vessel. Combining with nonlinear fitting technique, the variation of flame propagation speed, laminar burning velocity, Markstein length, flame thickness, thermal expansion coefficient and mass burning flux were studied at various equivalence ratios (0.8 -1.4) and hydrogen mixing ratios (0%-50%). The results suggested that the nonlinear fitting method had a better agreement with the experimental data in this paper and the flame propagation was strongly effected by stretch at low equivalence ratios. The stretched propagation speed increased with the increase of hydrogen fraction at the same equivalence ratio. For a given hydrogen fraction, Markstein length decreased with the increase of equivalence ratio; flame propagation speed and laminar burning velocity first increased and then decreased with the increase of equivalence ratio while the peaks of the burning velocity shifted toward the richer side with the increase of hydrogen fraction. (C) 2019 Hydrogen Energy Publications LLC. Published by Elsevier Ltd. All rights reserved.

引用

页码：13910 / 13922

页数：13

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