| 环形翅片效率的简化计算方法 |
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| 引用本文： | 刘纪福,于洪伟. 环形翅片效率的简化计算方法[J]. 节能技术, 2011, 29(3): 245-247 |
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| 作者姓名： | 刘纪福 于洪伟 |
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| 作者单位： | 1. 哈尔滨工业大学能源科学与工程学院,黑龙江,哈尔滨,150001
2. 哈尔滨双合翅片管厂,黑龙江,哈尔滨,150000 |
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| 摘 要： | 在保持换热效果不变的情况下,用相应的直翅片替换环形翅片,推导出了环形翅片效率的简化计算公式。该计算方法与直翅片效率的计算式相近。借助这一简化计算方法可以直接求解出环形翅片的翅片效率,而无需查取图表和曲线,为翅片管换热器的程序设计和工程计算带来很大方便。通过实例和比较计算证明了这一方法是可靠的和准确的。
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| 关 键 词： | 直翅片 环形翅片 翅片效率 翅片管 |
A Simplified Calculation Method for Efficiencies of Circumferential Fins |
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| LIU Ji-fu,YU Hong-wei. A Simplified Calculation Method for Efficiencies of Circumferential Fins[J]. Energy Conservation Technology, 2011, 29(3): 245-247 |
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| Authors: | LIU Ji-fu YU Hong-wei |
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| Affiliation: | LIU Ji-fu1,YU Hong-wei2(1.School of Energy Science and Engineering,Harbin Institute of Technology,Harbin 150001,China,2.Harbin Shuanghe Finned Tube Factory,Harbin 150000,China) |
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| Abstract: | In order to obtain a simplified calculation method for efficiencies of circumferential fins,a moderate straight fin with the same heat transfer effect is used to replace the circumferential fin.The simplified calculation equation is similar with that of the straight fin.Several calculation examples demonstrate that this method is reliable and accurate.Facilated with the method,program designs and industrial calculation are freed from checking diagrams and tables,which is helpful for the design procedure of ... |
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| Keywords: | straight fin circumferential fin fin effeciency fin tube |
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