Numerical Procedure for LMTD Correction Factor Calculation for One Tube and One Shell Pass Shell-and-Tube Heat Exchangers

Flávio Neves Teixeira; Luiz Gustavo Monteiro Guimarães; Matheus dos Santos Guzella; Luben Cabezas-Gómez; José Antônio da Silva

doi:10.4028/www.scientific.net/AMM.789-790.426

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HomeApplied Mechanics and MaterialsApplied Mechanics and Materials Vols. 789-790Numerical Procedure for LMTD Correction Factor...

Numerical Procedure for LMTD Correction Factor Calculation for One Tube and One Shell Pass Shell-and-Tube Heat Exchangers

Abstract:

This paper outlines the application of a numerical procedure to compute the LMTD correction factor for one tube pass and one shell pass, namely 1-1, shell-and-tube heat exchangers. Although the procedure was applied for this specific arrangement, it can easily be applied to different heat exchanger arrangements. The numerical methodology is based on an association of ε-NTU and LMTD approaches introduced by Kays and London (1998). Unlike other shell-and-tube heat exchanger arrangements, such as one tube pass and two shell pass, no available analytical expression in closed form is available in the literature. Hence, the presented numerical procedure is applied to determine the LMTD correction factor for 1-1 shell-and-tube heat exchangers and numerical results were obtained by increasing the number of baffles (1, 3, 7, 9, 19 and 49), in order to analyze the obtained results. Finally, charts for the LMTD correction factor is presented as a function of two dimensionless parameters, namely P and R.

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Periodical:

Applied Mechanics and Materials (Volumes 789-790)

Pages:

426-429

DOI:

https://doi.org/10.4028/www.scientific.net/AMM.789-790.426

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Online since:

September 2015

Authors:

Flávio Neves Teixeira*, Luiz Gustavo Monteiro Guimarães, Matheus dos Santos Guzella, Luben Cabezas-Gómez, José Antônio da Silva

Keywords:

LMTD Correction Factor, Numerical Methodology, Shell-and-tube heat exchangers

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