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Research Papers: Heat Exchangers

A Design and Rating Method for Shell-and-Tube Heat Exchangers With Helical Baffles

[+] Author and Article Information
Jian-Fei Zhang, Ya-Ling He

School of Power and Energy Engineering, Xi’an Jiaotong University, Xi’an 710049, China

Wen-Quan Tao1

School of Power and Energy Engineering, Xi’an Jiaotong University, Xi’an 710049, Chinawqtao@mail.xjtu.edu.cn

1

Corresponding author.

J. Heat Transfer 132(5), 051802 (Mar 09, 2010) (8 pages) doi:10.1115/1.4000457 History: Received May 07, 2009; Revised August 23, 2009; Published March 09, 2010; Online March 09, 2010

A method for design and rating of shell-and-tube heat exchanger with helical baffles (STHXHB) has been developed in present study based on the public literatures and the widely used Bell–Delaware method for shell-and-tube heat exchanger with segmental baffles (STHXSB). A number of curve-type factors in the literature have all been replaced by mathematical expressions for the convenience of engineering design. The detailed calculation procedure of the method is provided. The accuracy of present method is validated with some experimental data. Four design cases of replacing original STHXsSB by STHXsHB are supplied, and the comparison results show that all of the STHXsHB have better performance than the original heat exchangers with segmental baffles.

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Copyright © 2010 by American Society of Mechanical Engineers
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References

Figures

Grahic Jump Location
Figure 1

Helical baffle arrangement and parameters definition

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Figure 2

Definition of parameters used in Y3

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Figure 3

Definition of parameters used in Y8 and Z5

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Figure 4

Definition of overlapped rate α

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