Combustion of aluminum particles with steam and liquid water

Grant A. Risha, Ying Huang, Richard A. Yetter, Vigor Yang, Steven F. Son, Bryce C. Tappan

研究成果: Conference contribution

41 引文 斯高帕斯(Scopus)

摘要

Experiments were conducted to study the effect of liquid and gas phases of water as the oxidizer combusting with both micron- and nano-sized aluminum particles. Combustion of aluminum with steam was achieved using a Bunsen-type dust cloud apparatus. During the experiment, the aluminum particles, ∼5-8 microns in diameter, were entrained in a high-velocity steam flow while the aerosol velocity is regulated by an ejector system to maintain a stable flame at the end of the contoured nozzle. AI/steam/N2 flames were obtained for various equivalence ratios at atmospheric pressure. The flame luminosity was less than that of aluminum/air mixtures due to the reduction in flame temperature. Linear and massburning rates of mixtures of nanoaluminum (38 nm) and liquid water as a function of pressure and mixture composition at room temperature were measured using a constant volume optical pressure vessel. At the highest pressure studied (4.3 M Pa), the linear burning rate was found to be 8.6β0.4 cm/s corresponding to a mass-burning rate of 6.1 g/cm 2-s. The pressure exponent at room temperature was 0.47, which was independent of the overall mixture equivalence ratio for the cases considered.

原文English
主出版物標題Collection of Technical Papers - 44th AIAA Aerospace Sciences Meeting
頁面14007-14014
頁數8
出版狀態Published - 2006
事件44th AIAA Aerospace Sciences Meeting 2006 - Reno, NV, United States
持續時間: 2006 1月 92006 1月 12

出版系列

名字Collection of Technical Papers - 44th AIAA Aerospace Sciences Meeting
19

Other

Other44th AIAA Aerospace Sciences Meeting 2006
國家/地區United States
城市Reno, NV
期間06-01-0906-01-12

All Science Journal Classification (ASJC) codes

  • 空間與行星科學
  • 航空工程

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