摘要
基于可调谐半导体激光吸收光谱(TDLAS)技术,研究了高温环境中CO2温度和浓度的测量方法。选取位于4996cm-1附近的CO2吸收谱线作为高温环境中对CO2温度和浓度进行测量的目标谱线对。对气体吸收池内不同温度(873~1273K)、不同CO2体积分数(4%~10%)的CO2/N2混合气体的温度以及CO2的浓度进行了在线测量。结果表明:测量温度与设定温度的平均偏差为2.07%,峰值偏差为3.49%;测量得到的CO2浓度与配比浓度的平均偏差为2.25%,峰值偏差为4.75%。该测量方法精确可靠,为高温环境中CO2的测量提供了一种新的技术手段。
Based on tunable diode laser absorption spectroscopy technique, the measurement method of CO2 temperature and concentration in high temperature environment is studied. The CO2 absorption line near 4996 cm^-1 is selected as the target detection line to measure CO2 temperature and concentration in high temperature environment. The CO2 concentration and temperature of CO2/Nz mixed gas in the gas absorption cell at different temperatures （873-1273 K） and different CO2 volume fraction （4%-10%） are measured. The results show that, compared with the setting values, the average deviation and peak deviation of the measured temperature are 2.07 and 3.49%, respectively. The average deviation and peak deviation of the measured concentration are 2.25 % and 4.75 %, respectively. The results indicate that the proposed method is accurate, and it provides references for CO2 detection in the high temperature environment.
作者
崔海滨
王飞
李玫仪
Cui Haibin;Wang Fei;Li Meiyi(College of Energy Engineering, State Key Laboratory of Clean Energy Utilization, Zhejiang University Hangzhou, Zhejiang 310027, China)
出处
《激光与光电子学进展》
CSCD
北大核心
2018年第5期414-420,共7页
Laser & Optoelectronics Progress
基金
浙江省科技计划项目(2016C33005)
关键词
光谱学
可调谐激光吸收光谱
高温环境
CO2
温度测量
浓度测量
spectroscopy
tunable diode laser absorption spectroscopy
high temperature environment
carbon dioxide
temperature measurement
concentration measurement
