富甲醇和氢气混合物与空气燃烧的实验和数值研究

IF 0.9 4区工程技术 Q4 ENERGY & FUELS Combustion, Explosion, and Shock Waves Pub Date : 2024-04-22 DOI:10.1134/s0010508224010027

V. A. Bunev

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引用次数: 0

摘要

摘要通过实验和数值方法研究了甲醇和氢的富混合物与空气的燃烧。研究表明，偏离勒夏特列原理的富燃极限是由两个因素造成的：富氢混合物中甲醇对火焰的抑制作用和富甲醇混合物中超绝热温度的存在。研究发现，在富甲醇混合物中加入少量氢气的效果与加入惰性氮气和二氧化碳的效果相同。数值模拟表明，在富甲醇混合物中加入少量氢气对正常火焰速度只有物理影响。加入氢气对甲醇火焰超绝热温度的影响与加入惰性二氧化碳和二氧化氮相同。

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Experimental and Numerical Study of Combustion of Rich Mixtures of Methanol and Hydrogen with Air

Abstract

The combustion of rich mixtures of methanol and hydrogen with air has been studied by experimental and numerical methods. It has been shown that the deviation from Le Chatelier’s principle for the rich flammability limits is due to two factors: flame inhibition by methanol in rich mixtures of hydrogen and the presence of superadiabatic temperatures in rich mixtures of methanol. It has been found that the effect of adding small amounts of hydrogen to rich methanol mixtures is the same as the effect of adding inert nitrogen and carbon dioxide. Numerical simulation has shown that the addition of small amounts of hydrogen to rich methanol mixtures has only a physical effect on the normal flame speed. The addition of H₂ affects the occurrence of superadiabatic temperatures in methanol flames in the same way as the addition of inert CO₂ and N₂.

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来源期刊

Combustion, Explosion, and Shock Waves 工程技术-材料科学：综合

CiteScore

1.60

自引率

16.70%

发文量

审稿时长

5.7 months

期刊介绍： Combustion, Explosion, and Shock Waves a peer reviewed journal published in collaboration with the Siberian Branch of the Russian Academy of Sciences. The journal presents top-level studies in the physics and chemistry of combustion and detonation processes, structural and chemical transformation of matter in shock and detonation waves, and related phenomena. Each issue contains valuable information on initiation of detonation in condensed and gaseous phases, environmental consequences of combustion and explosion, engine and power unit combustion, production of new materials by shock and detonation waves, explosion welding, explosive compaction of powders, dynamic responses of materials and constructions, and hypervelocity impact.