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

被引：22
|
作者：
Raei, Behrouz [1 ]
Shahraki, Farhad [2 ]
Jamialahmadi, M. [3 ]
Peyghambarzadeh, S. M. [1 ]
机构：
[1] Islamic Azad Univ, Mahshahr Branch, Dept Chem Engn, Mahshahr, Iran
[2] Univ Sistan & Baluchestan, Dept Chem Engn, Zahedan 98164161, Iran
[3] Petr Univ Technol, Dept Petr Engn, Ahvaz, Iran
来源：
EXPERIMENTAL HEAT TRANSFER | 2018年 / 31卷 / 01期
关键词：
convective heat transfer; Nusselt number; double-tube heat exchanger; FLOW; NANOFLUIDS; CONVECTION; WATER; PIPE;
D O I：
10.1080/08916152.2017.1341963
中图分类号：
O414.1 [热力学];
学科分类号：
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.
引用
收藏
页码：32 / 46
页数：15
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