Analysis of Aluminum Dust Cloud Combustion Using Flame Emission Spectroscopy

作者：Lee Sanghyup^*; Noh Kwanyoung; Yoon Woongsup

来源：Spectroscopy and Spectral Analysis, 2015, 35(9): 2431-2438.

DOI：10.3964/j.issn.1000-0593(2015)09-2431-08

• Aluminum combustion
• Flame characteristics
• High-temperature measurement
• Emission spectroscopy
• Diagnostics

In this study, aluminum flame analysis was researched in order to develop a measurement method for high-energy-density metal aluminum dust cloud combustion, and the flame temperature and UV-VIS-IR emission spectra were precisely measured using a spectrometer. Because the micron-sized aluminum flame temperature was higher than 2 400 K, Flame temperature was measured by a non-contact optical technique, namely, a modified two-color method using 520 and 640 nm light, as well as by a polychromatic fitting method. These methods were applied experimentally after accurate calibration. The flame temperature was identified to be higher than 2 400 K using both methods. By analyzing the emission spectra, we could identify AlO radicals, which occur dominantly in aluminum combustion. This study paves the way for realization of a measurement technique for aluminum dust cloud combustion flames, and it will be applied in the aluminum combustors that are in development for military purposes.

• 出版日期2015-9