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Abstract

In this paper, a simplified mathematical model is presented to predict the axial temperature distribution of fluids in a three-concentric tube heat exchanger. Calculation results are compared with experimental results to confirm accuracy. The objective of the study is to avoid temperature cross which is very likely to be occurred in triple-fluid heat exchangers. Thereby the designer can adjust the design parameters, e.g. geometric parameters of the exchanger, temperatures or fluid flow rates, so that the temperature cross does not occur. The result of calculating a case shows that at the tube length of 21.5 m, the temperature cross occurs between the hot fluid and the intermediate fluid at a certain position. The shorten tube length to 8.5 m yields desirable gain. EES code and calculation procedure in detail are presented in the current study.



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Article Details

Issue: Vol 3 No 3 (2020): Under Publishing
Page No.: 452-460
Published: Nov 3, 2020
Section: Research article
DOI: https://doi.org/10.32508/stdjet.v3i3.736

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Creative Commons License

Copyright: The Authors. This is an open access article distributed under the terms of the Creative Commons Attribution License CC-BY 4.0., which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.

 How to Cite
Nguyễn Minh, P. (2020). A Compact EES Program to Predict Axial Temperature Distribution in Triple-fluid Heat Exchanger. Science & Technology Development Journal - Engineering and Technology, 3(3), 452-460. https://doi.org/https://doi.org/10.32508/stdjet.v3i3.736

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