Investigation on CO2 Concentration Measurementfor Point Emission Source
ZOU Bing-yan1,2,LIN Hong2,ZHANG Liang2,FENG Xiao-juan2,ZHAO Bu-hui1,ZHANG Jin-tao2
1. School of Electrical and Information Engineering, Jiangsu University, Zhenjiang, Jiangsu 212013, China
2. National Institute of Metrology, Beijing 100029, China
Abstract：The global climate change caused by the increase in the concentration of greenhouse gases(GHG) in the atmosphere is the focus of attention in the world. Among all sources of emissions, the emission of carbon dioxide from point sources is a major factor in the greenhouse effect. The Intergovernmental Panel on Climate Change (IPCC) will directly measure emissions as the highest level of GHG emissions inventory statistics to improve the accuracy of data statistics. In order to achieve accurate measurement of emissions, direct measurement of point source concentration is critical. An off-axis direct absorption spectroscopy technique combined with a long optical path gas absorption cell and a scanning laser frequency method was used to establish a relative method for accurate measurement of carbon dioxide concentration. The absorption spectra of the (30012)←(00001)R20e transition line at 6362.5 cm-1 in the range of 293 K and 0~13 kPa have been measured. The concentration of 15%, 35%, 50%, and 75% of carbon dioxide mixture was obtained by comparison with the absorption area of pure carbon dioxide, and a detailed uncertainty analysis was performed on the measurement results. The results have a good consist with the results obtained by the balance weighing method, the expanded relative measurement uncertainty is below 0.7%(k=2).
［1］IPCC. Climate Change 2013: The Physical Science Basis ［R］. Cambridge:Cambridge University Press,2013.
［2］胡鹤鸣, 王池, 张金涛. 城市区域碳排放测量反演研究国际进展［J］. 计量学报, 2017, 38(1): 7-12.
Hu H M, Wang C, Zhang J T. International Research Overview of Inversion Approach of Carbon Emission Measurement in Urban Area ［J］. Acta Metrologica Sinica, 2017, 38(1): 7-12.
［3］张亮, 孟涛, 王池, 等. 蝶阀后多声道超声流量计安装影响实验研究［J］. 计量学报, 2012, 33(z1): 120-125.
Zhang L, Meng T, Wang C, et al. Experimental Study on the Installation Effect of Butterfly Valve on Multi-path Ultrasonic Flowmeter ［J］. Acta Metrologica Sinica, 2012, 33(z1): 120-125.
［4］胡鹤鸣, 孟涛, 王池. 扰流流场对超声流量计积分误差的影响分析［J］. 计量学报, 2011, 32(3): 198-202.
Hu H M, Meng T, Wang C. Theoretical Analysis of Integration Error of Ultrasonic Flowmeter in the Disturbed Flow Condition ［J］. Acta Metrologica Sinica, 2011, 32(3): 198-202.
［5］Werle P. A review of recent advances in semiconductor laser-based gas monitors ［J］. Spectrochimica Acta Part A, 1998, 54(2): 197~236.
［6］Von Drasek W A, Charona O, Mulderin K, et al. Multifunctional industrial combustion process monitoring with tunable diode lasers ［J］. Proc SPIE , 2001, 4201: doi:10.1117 / 12.417388.
［7］袁松,阚瑞峰,姚路,等.基于可调谐半导体激光吸收光谱对CO2浓度的测量［J］.大气与环境光学学报,2012,7(6):432-437.
Yuan S, Kan R F, Yao L, et al. Measurement of concentration of carbon dioxide gas with tunable diode laser absorption spectroscopy ［J］. Journal of Atmospheric and Environmental Optics, 2012, 7(6): 432-437.
［8］Gao G. Carbon dioxide measurement based on multimode diode laser correlation spectroscopy employing wavelength modulation techniques［J］. Spectroscopy Letters, 2014, 47(1):6-11.
［9］Pogány A, Ott O, Werhahn O, et al. Towards traceability in CO2 line strength measurements by TDLAS at 2.7 μm［J］. Journal of Quantitative Spectroscopy and Radiative Transfer, 2013,130:147-157.
［10］刘晓萌,刘勤勇,张亮. 大气温室气体探测激光雷达及其标定技术研究进展［J］. 计量学报,2018,39(1):39-42.
Liu X M,Liu Q Y, Zhang L. Recent Progress on Atmospheric Greenhouse-gases LIDAR and Its Calibration［J］. Acta Metrologica Sinica,2018,39(1):39-42.
［11］王雪梅, 刘石. 基于TDLAS技术的CO2浓度测量［J］. 化工自动化及仪表, 2016, 43(11): 1158-1161.
Wang X M, Liu S. CO2 concentration measurement based on TDLAS ［J］. Control and Instruments in Chemical Industry, 2016, 43(11): 1158-1161.
［12］孙加运, 信丰鑫, 朱金山. 基于TDLAS直接吸收的CO2浓度监测技术研究［J］. 山东科技大学学报, 2017, 36(3): 25-31.
Sun J Y, Xin F X, Zhu J S. Study on monitoring technology of carbon dioxide concentration based on TDLAS direct absorption［J］. Journal of Shandong University of Science and Technology, 2017, 36(3): 25-31.
［13］朱晓睿, 卢伟业, 饶雨, 等. TDLAS直接吸收法测量CO2的基线选择方法［J］. 中国光学, 2017, 10(4): 455-461.
Zhu X R, Lu W Y, Rao Y, et al. Selection of baseline method in TDLAS direct absorption CO2 measurement ［J］. Chinese Optics, 2017, 10(4): 455-461.
［14］Demtrder W. Laser spectroscopy: Basic concepts and instruments ［M］. New York: Springer, 2003.
［15］赵欣月, 林鸿, 杨雷, 等. 1.6微米附近氮气展宽的一氧化碳分子线形的研究［J］. 计量学报, 2017, 38(1): 13-18.
Zhao X Y, Lin H, Yang L, et al. Inverstigation on line shape for N2-broadened CO near 1.6 μm［J］. Acta Metrologica Sinica, 2017, 38(1): 13-18.
［16］Newell D B, Cabiati F, Fischer J, et al. The CODATA 2017 values of h, e, k, and NA for the revision of the SI ［J］. Metrologia, 2018,55:L13-L16.
［17］Gordon I E, Rothman L S, Hill C. The HITRAN2016 molecular spectroscopic database ［J］. Journal of Quantitative Spectroscopy and Radiative Transfer, 2017,203: 3-69.
［18］Herriott D R, Kogelnik H, Kompfner R. Off-axis paths in spherical mirror interferometers ［J］. Applied Optics,1964,3(4):523-526.
2019, Vol. 40 
