Experimental studies on the OH* chemiluminescence and structure characteristics in NH3/H2 and NH3/cracked gas swirl flames

被引：21
作者：
Chen, Danan [1 ,2 ]
Li, Jun [1 ,2 ,3 ]
Li, Xing [1 ,2 ]
Guo, Yijun [1 ,2 ]
Huang, Hongyu [1 ,2 ]
Kobayashi, Noriyuki [4 ]
机构：
[1] Univ Sci & Technol China, Sch Energy Sci & Engn, Guangzhou 510640, Peoples R China
[2] Chinese Acad Sci, Guangzhou Inst Energy Convers, Guangzhou 510640, Peoples R China
[3] Jiangxi Carbon Neutralizat Res Ctr, Nanchang 330096, Jiangxi, Peoples R China
[4] Nagoya Univ, Dept Chem Syst Engn, Nagoya, Aichi 4648603, Japan
来源：
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY | 2024年 / 52卷
关键词：
OH* chemiluminescence; Ammonia combustion; Equivalence ratio; Hydrogen addition level; Swirl flame; TURBINE-LIKE COMBUSTOR; EMISSION CHARACTERISTICS; PREMIXED COMBUSTION; HEAT RELEASE; CH-ASTERISK; HYDROGEN; LAMINAR; AMMONIA; NO;
D O I：
10.1016/j.ijhydene.2023.06.185
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：
Ammonia (NH3) has been gaining popularity as a carbon-free alternative fuel in recent years. OH* chemiluminescence is a promising method to study the structure of ammonia flames, but research on this aspect is still lacking. In this study, the OH* chem-iluminescence distributions and structure characteristics in NH3/H2 and NH3/cracked gas swirl flames are experimentally investigated. The OH* distributions of NH3/H2 and NH3/ cracked gas under different addition levels and equivalence ratios are compared. The re-sults show that the increase of equivalence ratio and hydrogen doping level significantly increased the OH* chemiluminescence peak of NH3/air swirling flame. Especially in fuel-lean flames, the equivalence ratio effect is greater than the NH3 dilution effect, while the two effects are comparable in equivalence and fuel-rich conditions. The stretching effect of NH3/cracked gas is stronger, and the flame width is narrower than that of NH3/H2 flame, but the peak value of OH* radiation is higher.(c) 2023 Hydrogen Energy Publications LLC. Published by Elsevier Ltd. All rights reserved.
引用
收藏
页码：1370 / 1379
页数：10
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