Study on Emission Spectroscopy and Flame of Boron Combustion in Different Atmosphere

Journal of Propulsion Technology ›› 2014, Vol. 35 ›› Issue (5): 648-653.

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Study on Emission Spectroscopy and Flame of Boron Combustion in Different Atmosphere

State Key Laboratory of Clean Energy Utilization，Zhejiang University，Hangzhou 310027，China;Institute of Advanced Technology，Zhejiang University，Hangzhou 310027，China;State Key Laboratory of Clean Energy Utilization，Zhejiang University，Hangzhou 310027，China;State Key Laboratory of Clean Energy Utilization，Zhejiang University，Hangzhou 310027，China;State Key Laboratory of Clean Energy Utilization，Zhejiang University，Hangzhou 310027，China;State Key Laboratory of Clean Energy Utilization，Zhejiang University，Hangzhou 310027，China;State Key Laboratory of Clean Energy Utilization，Zhejiang University，Hangzhou 310027，China

Published:2021-08-15

不同气氛下硼燃烧发射光谱分析及火焰形态研究

敖文¹,汪洋²,李和平¹,席剑飞¹,杨卫娟¹,刘建忠¹,周俊虎¹

浙江大学能源清洁利用国家重点实验室，浙江杭州 310027;浙江大学先进科学研究院，浙江杭州 310027;浙江大学能源清洁利用国家重点实验室，浙江杭州 310027;浙江大学能源清洁利用国家重点实验室，浙江杭州 310027;浙江大学能源清洁利用国家重点实验室，浙江杭州 310027;浙江大学能源清洁利用国家重点实验室，浙江杭州 310027;浙江大学能源清洁利用国家重点实验室，浙江杭州 310027

作者简介:敖文(1988—)，男，博士生，研究领域为金属燃料研究。E-mail:3050823067@zju.edu.cn
基金资助:
国家自然科学基金资助项目(51106135)；中国博士后科学基金资助项目(20110491769)；中央高校基本科研业务费专项资金资助(2012FZA4014)。

Abstract

Abstract: In order to reveal the combustion characteristics of amorphous boron powder in different atmosphere，experimental studies were carried out using a laser ignition system. Visible wavelength emission spectra and burning flame were recorded using a spectrometer coupled with a high speed camera. The results show amorphous boron can maintain self burning in pure N 2 with light yellow flame，while the combustion in pure O 2 is much stronger with a green flame. Spectroscopic data taken in pure O 2 show obvious BO 2 emission and little BO emission，while those taken in pure N 2 show no BN emission. The highest intensity peak of the emission spectrum of the gas-phase reactant BO 2 is at wavelength of 547.1 nm. No BO 2 emission is detected in O 2 /H 2 O environment compared to O 2 . As the mole fraction of O 2 decreases，the BO 2 peaks at the wavelengths of 471，492.9，518.1，547.1，579.1 nm are always strong，whereas those of 452 and 620.2 nm gradually fade away in O 2 /N 2 environment.

Key words: Boron；Combustion；Atmosphere；Flame；Emission Spectroscopy

摘要： 为了揭示无定形硼粉在各种气氛下的燃烧特性，利用激光点火系统研究了硼粉的燃烧过程，采用先进的光纤光谱仪和高速摄影仪分析了火焰形态以及燃烧过程中的发射光谱。结果表明，硼在纯氮气氛中能自持燃烧，火焰呈现不明显的淡黄色；而在纯氧气氛中的燃烧则非常剧烈，火焰为硼燃烧特有的绿色。硼在纯氧气氛下燃烧发射出明显的BO 2 光谱及少量的BO光谱，波长547.1nm的谱峰强度最大。在纯氮气氛下未观察到明显的BN发射光谱。与氧气气氛相比，在水蒸气/氧气混合气氛下，没出现明显的BO 2 发射光谱。在氧氮气氛下，随着氧浓度的降低，波长471，492.9，518.1，547.1，579.1nm的BO 2 峰始终较为明显，而452和620.2 nm波段的BO 2 峰则逐渐消失。

关键词: 硼；燃烧；气氛；火焰；发射光谱

AO Wen¹,WANG Yang²,LI He-ping¹,XI Jian-fei¹,YANG Wei-juan¹,LIU Jian-zhong¹,ZHOU Jun-hu¹. Study on Emission Spectroscopy and Flame of Boron Combustion in Different Atmosphere[J]. Journal of Propulsion Technology, 2014, 35(5): 648-653.

敖文,汪洋,李和平,席剑飞,杨卫娟,刘建忠,周俊虎. 不同气氛下硼燃烧发射光谱分析及火焰形态研究[J]. 推进技术, 2014, 35(5): 648-653.

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Study on Emission Spectroscopy and Flame of Boron Combustion in Different Atmosphere

不同气氛下硼燃烧发射光谱分析及火焰形态研究

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