Different methods to calculate heat transfer coefficient in a double-tube heat exchanger: A comparative study

Raei Behrouz; Shahraki Farhad; Jamialahmadi M.; Peyghambarzadeh S. M.

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Different methods to calculate heat transfer coefficient in a double-tube heat exchanger: A comparative study

机译：双管式换热器中不同的传热系数计算方法：比较研究

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摘要

An experimental study performed to compare the results of different methods used in the literature for the calculation of heat transfer coefficient in double-tube heat exchangers. Then, a new fundamental approach was proposed which used the temperature profile and the local heat transfer coefficients. In this method, the heat transfer coefficient has been calculated for the total length of the heat exchanger including developing and fully developed regions. Numerous experimentations have been conducted in a double-tube heat exchanger. A significant difference observed between the results obtained from the suggested approach and those of the previous methods.

机译：进行了一项实验研究，以比较文献中用于计算双管式换热器传热系数的不同方法的结果。然后，提出了一种新的基本方法，该方法利用了温度分布和局部传热系数。在这种方法中，已经计算出热交换器的总长度（包括显影区域和完全显影区域）的传热系数。在双管式换热器中进行了大量实验。从建议的方法获得的结果与以前的方法之间观察到显着差异。

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来源
《Experimental Heat Transfer》 |2018年第3期|32-46|共15页
作者
Raei Behrouz; Shahraki Farhad; Jamialahmadi M.; Peyghambarzadeh S. M.;
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作者单位

Islamic Azad Univ, Mahshahr Branch, Dept Chem Engn, Mahshahr, Iran;

Univ Sistan & Baluchestan, Dept Chem Engn, Zahedan 98164161, Iran;

Petr Univ Technol, Dept Petr Engn, Ahwaz, Iran;

Islamic Azad Univ, Mahshahr Branch, Dept Chem Engn, Mahshahr, Iran;

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收录信息美国《科学引文索引》(SCI);美国《工程索引》(EI);
原文格式 PDF
正文语种 eng
中图分类
关键词
convective heat transfer; Nusselt number; double-tube heat exchanger;

机译：对流换热;努塞尔数;双管换热器;

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Different methods to calculate heat transfer coefficient in a double-tube heat exchanger: A comparative study

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