| 不同垫水层厚度下薄层扬沸现象燃烧特性研究 |
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| 引用本文： | 林潇,黄吉星,马平川,汪箭.不同垫水层厚度下薄层扬沸现象燃烧特性研究[J].火灾科学,2018,27(2):71-77. |
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| 作者姓名： | 林潇 黄吉星 马平川 汪箭 |
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| 作者单位： | 中国科学技术大学火灾科学国家重点实验室 |
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| 基金项目： | 国家自然科学基金项目（51376172） |
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| 摘 要： | 利用自行研发的小尺寸薄层扬沸燃烧特性测量平台,开展了不同垫水层厚度下薄层扬沸燃烧特性的实验研究。测试油料的品种为:柴油(0)和航空煤油(Jet A);油盆尺寸为15cm,18cm,30cm和40cm;实验工况中油层厚度为1.0cm,水层厚度选取了与油层厚度数量级相同的三种厚度:1.0cm,1.5cm和2.0cm。结果表明:随着油盆尺寸增大或垫水层厚度上升,扬沸阶段特性从突变型向持续型转变,首次扬沸发生时间缩短,扬沸强度降低。
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| 关 键 词： | 垫水层厚度 薄层扬沸 扬沸趋势 |
| 收稿时间： | 2017/5/22 0:00:00 |
Combustion characteristics of thin-layer boilover with different water layer thicknesses |
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| LIN Xiao,HUANG Jixing,MA Pingchuan and WANG Jian.Combustion characteristics of thin-layer boilover with different water layer thicknesses[J].Fire Safety Science,2018,27(2):71-77. |
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| Authors: | LIN Xiao HUANG Jixing MA Pingchuan and WANG Jian |
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| Institution: | State Key Laboratory of Fire Science, University of Science and Technology of China, Hefei 230026, China;State Key Laboratory of Fire Science, University of Science and Technology of China, Hefei 230026, China;State Key Laboratory of Fire Science, University of Science and Technology of China, Hefei 230026, China;State Key Laboratory of Fire Science, University of Science and Technology of China, Hefei 230026, China |
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| Abstract: | In this work, a small-scale platform designed by the authors was used to study the combustion characteristics of thin layer boilover. The effect of the thickness of water layer on thin-layer boilover was investigated. The diesel (0#) and Jet A were used as the fuels. The diameters of container were 0.15 m, 0.18 m, 0.30 m and 0.40 m. The thickness of fuel layer was 1.0 cm and the thicknesses of water layers were 1.0 cm, 1.5 cm and 2.0 cm. The results show that with the increase of container diameter and water layer thickness, the boilover period changes from abrupt type to continuous type, less time is required for the first boilover and the boilover intensity decreases. |
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| Keywords: | The thickness of water layer Thin layer boilover The boilover trend |
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