| 环形狭缝通道内干涸点及其位置的实验研究 |
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| 引用本文： | 赵亮,王晓墨,苏顺玉,黄素逸.环形狭缝通道内干涸点及其位置的实验研究[J].华中科技大学学报(自然科学版),2003,31(8):44-46. |
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| 作者姓名： | 赵亮 王晓墨 苏顺玉 黄素逸 |
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| 作者单位： | 华中科技大学能源与动力工程学院 |
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| 基金项目： | 国家自然科学基金资助项目 (5 0 0 76 0 1 4 )，国家重点基础研究发展规划资助项目 (G2 0 0 0 0 2 6 30 3) |
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| 摘 要： | 以蒸馏水为工质 ,对压力范围为 2 .0～ 4 .0MPa ,质量流量 5～ 1 8kg/h ,间隙为 1mm的环形狭缝通道中的流动沸腾进行了实验研究 ,分析了影响干涸点 (DO点 )的界限含气量及其位置 (Lcr)的有关因素 ,采用多元线性回归分析技术整理试验数据 ,得到了有关干涸区传热特性的经验公式 ,试验结果与计算结果误差为± 1 0 % ,此关系式可以用来预测实验范围内的界限含气量及其位置
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| 关 键 词： | 传热 气－液两相流 干涸点 环形狭缝 经验关系式 |
| 文章编号： | 1671-4512(2003)08-0044-03 |
| 修稿时间： | 2002年12月6日 |
An experimental investigation into the quality and position of dryout point through narrow annular channels |
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| Zhao Liang Wang Xiaomo Su Shunyu Huang Suyi Zhao Liang Postgraduate, College of Energy & Power Eng.,Huazhong Univ. of Sci. & Tech.,Wuhan ,China..An experimental investigation into the quality and position of dryout point through narrow annular channels[J].JOURNAL OF HUAZHONG UNIVERSITY OF SCIENCE AND TECHNOLOGY.NATURE SCIENCE,2003,31(8):44-46. |
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| Authors: | Zhao Liang Wang Xiaomo Su Shunyu Huang Suyi Zhao Liang Postgraduate College of Energy & Power Eng Huazhong Univ of Sci & Tech Wuhan China |
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| Institution: | Zhao Liang Wang Xiaomo Su Shunyu Huang Suyi Zhao Liang Postgraduate, College of Energy & Power Eng.,Huazhong Univ. of Sci. & Tech.,Wuhan 430074,China. |
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| Abstract: | An experimental investigation into the quality and position of dryout point through narrow annular channels under high pressure and temperature was made. The water by water heating technique was adopted. The superheating boiling starting point (DO point) was obtained by searching the temperature jump point in the wall temperature profile figure.The factors influencing the dryout quality( x ) and position ( L cr ) such as mass velocity, pressure, inlet temperature were analyzed. The empirical relationship for calculating the dryout quality and position of dryout were simulated. These relationships can be used to predicate the x and L er within the range of the experiment. |
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| Keywords: | heat transfer gas liquid flow dryout point narrow annular channels empirical relationship |
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