| 环形狭缝过热气传热试验研究 |
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| 引用本文： | 王增辉,刘瑞兰,贾斗南,苏光辉,秋穗正.环形狭缝过热气传热试验研究[J].西安交通大学学报,2002,36(7):697-700. |
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| 作者姓名： | 王增辉 刘瑞兰 贾斗南 苏光辉 秋穗正 |
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| 作者单位： | 西安交通大学能源与动力工程学院,710049,西安 |
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| 摘 要： | 对以去离子水为工质的过热气流过电加热的环形狭缝进行了换热试验，试验结果表明：环形狭缝中的过热气热交换参数与普通圆管有着显著的不同，随着狭缝间隙的减小，狭缝中的换热得到了增强，当内，外管热流密度相等时，内管换热系数大于外管换热系数，并且此时环形狭缝的换热能力最强，应用试验结果和多元线性回归方程，拟合出适合试验数据的经验关系式。
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| 关 键 词： | 传热试验 环形狭缝 过热气 多元线性回归 狭缝传热 换热系数 换热能力 |
| 文章编号： | 0253-987X(2002)07-0697-04 |
| 修稿时间： | 2001年8月9日 |
Heat Transfer of Super Gas in Narrow Annular Gap |
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| Wang Zenghui,Liu Ruilan,Jia Dounan,Su Guanghui,Qiu Suizheng.Heat Transfer of Super Gas in Narrow Annular Gap[J].Journal of Xi'an Jiaotong University,2002,36(7):697-700. |
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| Authors: | Wang Zenghui Liu Ruilan Jia Dounan Su Guanghui Qiu Suizheng |
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| Abstract: | Heat transfer of supper gas from distilled water at high temperature in narrow annular gap with width of 1 0, 1 5 and 2 0 mm has been experimentally investigated. The results indicated that characteristics of heat transfer in narrow channel are significantly different from that in the common tube. It was found that the smaller the gap width, the bigger the heat transfer coefficient. Using multivariate linear analysis, a heat transfer equation from the experiment results was suggested for engineering application. |
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| Keywords: | annular gap super gas multivariate linear analysis |
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