• 主题
高级搜索  >
历史搜索 清空历史
首页> 美国政府科技报告 >Fundamental Flame-Speed Measurements in Combustion Gases Containing CF sub 3 Br. WSS Paper No. 79-16
【24h】

Fundamental Flame-Speed Measurements in Combustion Gases Containing CF sub 3 Br. WSS Paper No. 79-16

机译：含CF sub 3 Br的燃烧气体的基本火焰速度测量。 Wss文件第79-16号

获取原文
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

An acoustically tuned flame tube was used to measure fundamental flame speed and flammability envelopes of premixed propane/air and methane/air that contain minute amounts of CF sub 3 Br. The flat propagation boundaries produced by this tube allow one to measure fundamental flame speed directly without having to make complicated velocity adjustments because of irregular flame shape. Measurement data show flame speed decreases exponentially with the concentration of CF sub 3 Br regardless of the equivalence ratio, and more CF sub 3 Br is needed to make fuel-rich mixtures inert than to make fuel-lean mixtures inert. Consequently, one can attain significantly lower flame speed on the fuel-rich side of the flammability envelope. The implications of these data for gross extinguishment mechanisms indicate CF sub 3 Br combines with free hydrogen radicals in competition with oxygen to interfere with chain-branching propagation. 14 figures. (ERA citation 04:039255)

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱：kefu@zhangqiaokeyan.com

京公网安备：11010802029741号 ICP备案号：京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有

  • 客服微信

  • 服务号