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小尺度庚烷池火燃烧速率实验研究 被引量:9

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摘要 对小尺度庚烷薄油池火燃烧速率特性进行实验研究.测量了不同直径庚烷油池火焰高度、燃烧速率以及燃油温度随时间变化规律,计算了燃烧过程中燃油的液面温度和池壁热流密度.综合油池燃烧现象和各种测量参数提出了小尺度薄油池火的4个典型燃烧阶段,并探讨了池壁热流密度对油池沸腾燃烧的影响.结果表明:油池沸腾燃烧阶段的火焰高度和燃烧速率明显大于准稳态燃烧阶段;燃油液面温度在油池燃烧初期迅速上升至沸点,随后基本保持不变;池壁温度达到并超过燃料的沸点,从而在油池壁面上发生核态沸腾,是油池发生沸腾燃烧的条件.
出处 《科学通报》 EI CAS CSCD 北大核心 2010年第1期87-93,共7页 Chinese Science Bulletin
基金 国家自然科学基金(批准号:50976109) 2008年度中国科学院研究生科技创新与社会实践基金资助项目
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参考文献12

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