Experimental study of propane/air premixed flame dynamics with hydrogen addition in a meso-scale quartz tube

被引：15

作者：

Wang, Wei ^{[1
]}

Zuo, Zhengxing ^{[1
]}

Liu, Jinxiang ^{[1
]}

机构：

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

来源：

JOURNAL OF THE ENERGY INSTITUTE | 2020年 / 93卷 / 04期

基金：

中国博士后科学基金;

关键词：

Propane/air premixed flame; Hydrogen addition; Meso-scale combustion; Flame-wall coupling; MICRO-COMBUSTORS; NUMERICAL INVESTIGATIONS; ENTROPY GENERATION; PROPAGATION; PERFORMANCE; TEMPERATURES; COUNTERFLOW; STABILITY; LIMITS;

D O I：

10.1016/j.joei.2020.02.006

中图分类号：

TE [石油、天然气工业]; TK [能源与动力工程];

学科分类号：

0807 ; 0820 ;

摘要：

The combustion process of propane/air premixed flame in meso-scale quartz tubes with different hydrogen additions was investigated experimentally to explain the flame-wall interaction mechanism. The ranges of different flame regimes were obtained by changing the flow rates of propane and hydrogen. The effects of hydrogen addition, inlet velocity and equivalence ratio were analyzed. The results show that the hydrogen addition broadens the operation ranges of fast flame regime and slow flame regime significantly. The flame propagation speed is in the same order of the thermal wave speed in solid wall for the slow flames. In fast flame regime, the flame propagation speed has an inverse correlation with the inlet flow velocity irrespective of the equivalence ratio. With the increase of the equivalence ratio, the maximum flame speed in fast flame regime decreases gradually, while the maximum flame speed in slow flame regime increases continually. It indicates that rich fuel condition suppresses the fast flame and promotes the slow flame. In slow flame regime, the output thermal efficiency is dominated by the inlet velocity and equivalence ratio. (C) 2020 Published by Elsevier Ltd on behalf of Energy Institute.

引用

页码：1690 / 1696

页数：7

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