Infrared emission spectroscopy of CO₂ at high temperature. Part II: Experimental results and comparisons with spectroscopic databases

详细信息    查看全文

• 作者：S. Depraz^a ;   ; ^b ;   ; ^c ; M.Y. Perrin^a ;   ; ^b ; Ph. Rivi&#232 ; re^a ;   ; ^b ; A. Soufiani^a ;   ; ^b ;   ; ^{Anouar.Soufiani@em2c.ecp.fr}
• 关键词：FTIR emission spectroscopy ; Microwave plasma source ; Spectroscopic databases ; High temperature CO₂ infrared radiation
• 刊名：Journal of Quantitative Spectroscopy and Radiative Transfer
• 出版年：2012
• 出版时间：January 2012
• 年：2012
• 卷：113
• 期：1
• 页码：14-25
• 全文大小：5081 K

文摘

Measurements of CO₂ emission spectra at high temperature in the and regions are presented and compared to predictions from the spectroscopic databases, CDSD-4000 (Tashkun SA, Perevalov VI. CDSD-4000: high-resolution, high-temperature carbon dioxide spectroscopic databank. Journal of Quantitative Spectroscopy and Radiative Transfer 2011;112:1403?0) and HITELOR (Scutaru D, Rosenmann L, Taine J. Approximate intensities of CO₂ hot bands at 2.7, 4.3 and for high temperature and medium resolution applications. Journal of Quantitative Spectroscopy and Radiative Transfer 1994;52:765?1). The measurements near show that CDSD-4000 provides better agreement with experimental data, especially in the band wing corresponding to very hot band emission. In the region, experimental intensities are generally lower than theoretical predictions but the measurements are more affected by the use of sapphire confinement tubes. The two spectroscopic databases provide closer results than in the region although CDSD-4000 yields here also better agreement with experimental data in band wing. Analysis of the two spectroscopic databases is carried out in terms of vibrational and rotational energy cutoff and total band emissivities.