Spectroscopic investigation of the nonequilibrium excitation of NO(A) hydrocarbon nitrous oxide flames

被引：6

作者：

Drakes, JA ^{[1
]}

Pruitt, DW ^{[1
]}

Howard, RP ^{[1
]}

Hornkohl, JO ^{[1
]}

机构：

[1] UNIV TENNESSEE,INST SPACE,TULLAHOMA,TN 37388

来源：

JOURNAL OF QUANTITATIVE SPECTROSCOPY & RADIATIVE TRANSFER | 1997年 / 57卷 / 01期

关键词：

D O I：

10.1016/S0022-4073(96)00115-X

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

A spectroscopic study of three hydrocarbon-nitrous oxide flames was undertaken to investigate the spectral character of the NO gamma band (A-X) and NO beta band (B-X) emission. A high-resolution (0.5 Angstrom) 1 m spectrometer was used to record emission spectra from fuel rich atmospheric flames in bandpasses corresponding to the NO gamma and beta bands at 230 and 304 nm, respectively, as well as the OH(A-X) band at 306 nm. In addition, a finite rate chemical kinetics model (CHEMKIN) was exercised to provide a baseline for the flame characteristics. It was found that the OH(A) rotational temperature deduced from the spectra was in good agreement with the predicted flame temperature. However, the NO(A) rotational and vibrational temperature exceeded the flame temperature by over 1000 K for all three flames. Surprisingly, no emission from the NO beta system (B-X) was detected. Published by Elsevier Science Ltd.

引用

页码：23 / 32

页数：10

共 29 条

[1] ABSORPTION AND EMISSION MEASUREMENTS OF C2 AND CH ELECTRONIC BANDS IN LOW-PRESSURE OXYACETYLENE FLAMES [J].