| 管内定型流传热过程的有效能损失 |
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| 引用本文： | 师晋生. 管内定型流传热过程的有效能损失[J]. 力学与实践, 2006, 28(5): 16-18 |
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| 作者姓名： | 师晋生 |
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| 作者单位： | 天津科技大学机械工程学院,天津,300222 |
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| 基金项目： | 天津科技大学科研基金项目(20040212)资助． |
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| 摘 要： | 对管道内充分发展对流传热过程的有效能损失进行了分析．根据定型流状态下定热流与定壁温换热条件的特点,经代数推演,得到了这两种条件下的表征换热状态、流动功耗以及黏性变化的无量纲形式的有效能损失关系式,适用于不同截面形状的管道内的层流与湍流工况下的有效能分析．
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| 关 键 词： | 有效能 管内 对流 传热 |
| 收稿时间： | 2005-07-26 |
| 修稿时间： | 2006-01-13 |
ENERGY LOSSES OF FULLY DEVELOPED CONVECTIVE HEAT TRANSFER INSIDE TUBES |
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| SHI Jinsheng. ENERGY LOSSES OF FULLY DEVELOPED CONVECTIVE HEAT TRANSFER INSIDE TUBES[J]. Mechanics and Engineering, 2006, 28(5): 16-18 |
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| Authors: | SHI Jinsheng |
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| Abstract: | An analytical study is conducted on energy losses of a fully developed convective heat transfer inside tubes.With the assumption of a fully developed inside tube flow subjected to constant wall heat flux or constant wall temperature,approximate expressions for dimensionless energy losses describing effects of heating,pumping power and the variation of viscosity are obtained.The present model is applicable for the energy analysis on fully developed laminar and turbulent flows inside tubes of a variety of cross-sectional shape. |
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| Keywords: | exergy inside tube convective flow heat transfer |
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