基于激光吸收光谱技术在线测量燃烧场温度研究

大气与环境光学学报 ›› 2010, Vol. 5 ›› Issue (6): 438-444.

基于激光吸收光谱技术在线测量燃烧场温度研究

陶波, 胡志云, 张立荣, 张振荣, 叶锡生

(西北核技术研究所，激光与物质相互作用国家重点实验室，陕西西安 710024 )

收稿日期:2010-04-09 发布日期:2010-11-30
通讯作者: 陶波（1986－），男，安徽舒城人，研究生，主要从事燃烧流场激光诊断技术研究。 E-mail:nktaobo@yeah.net
作者简介:陶波（1986－），男，安徽舒城人，研究生，主要从事燃烧流场激光诊断技术研究。
基金资助:
激光与物质相互作用国家重点实验室基金项目(SKL110905)资助

On-Line Measurement of Combustion Temperature Based on Laser Absorption Spectroscopy Technology

TAO Bo, HU Zhi-yun, ZHANG Li-rong, ZHANG Zhen-rong, YE Xi-sheng

(State Key Laboratory of Laser Interaction with Matter, Northwest Institute of Nuclear Technology, Xi'an, 710024)

Received:2010-04-09 Online:2010-11-30

摘要/Abstract

摘要：

燃烧场温度的测量对研究燃烧机理、提高燃烧效率、降低污染物排放等至关重要。利用水在1397.75 nm和1397.87 nm处两条邻近的吸收线，采用波长扫描直接吸收法实现了单台二极管激光器对标定燃烧炉甲烷/空气预混火焰温度的测量。并利用基于Labview语言的数据采集卡对信号进行采集和实时处理，从而能够实时在线地获得测量结果，在温度1750 K时标准测量不确定度为2.3％。分析了火焰边界层对测量结果的影响，结果表明燃烧场非均匀性对路径积分测量结果影响较大，且其测量结果不是路径积分算术平均值。

关键词: 吸收光谱, 在线测量, 可调谐二极管激光, 预混火焰

Abstract:

Measurement of combustion temperature is critical to understand combustion processes, improve combustion efficiency and reduce the production of pollutants. A single diode laser sensor system is established to obtain on-line measurement results of combustion temperature. The measurements are performed in a flat burner based on scanned-wavelength direct absorption spectroscopy by using two adjacent water lines 1397.75 nm and 1397.87 nm. The real-time results are acquired by using a DAQ card with Labview data processing program and the standard uncertainties of temperature are 2.3% at the temperature of 1750 K. The boundary layer of flame impact on the line-of-sight results is analyzed. It is demonstrated that the line-of-sight results is not the path average value, and may affect easily from the nonuniformity of the combustion.

Key words: absorption spectroscopy, on-line measurement, tunable diode laser, premixed flame

中图分类号:

O433

陶波胡志云张立荣张振荣叶锡生. 基于激光吸收光谱技术在线测量燃烧场温度研究[J]. 大气与环境光学学报, 2010, 5(6): 438-444.

DAO Bo, HU Zhi-Yun, ZHANG Li-Rong, ZHANG Zhen-Rong, YE Xi-Sheng. On-Line Measurement of Combustion Temperature Based on Laser Absorption Spectroscopy Technology[J]. Journal of Atmospheric and Environmental Optics, 2010, 5(6): 438-444.

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