Experimental and Numerical Analysis of a Plate Heat Exchanger Using Variable Heat Transfer Coefficient

Jamil, Muhammad Ahmad, Goraya, Talha S., Yaqoob, Haseeb, Shahzad, Muhammad Wakil and Zubair, Syed M. (2022) Experimental and Numerical Analysis of a Plate Heat Exchanger Using Variable Heat Transfer Coefficient. Heat Transfer Engineering, 43 (18). pp. 1566-1578. ISSN 0145-7632

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Official URL: https://doi.org/10.1080/01457632.2021.1989841


Thermal design and analysis of heat exchangers are predominantly conducted considering constant heat transfer coefficients. However, these vary along the length and affect the calculations of heat transfer rates and area allocations. The current paper investigates the variations in the heat transfer coefficients in plate heat exchangers (PHX), using different numerical approaches. The heat transfer coefficient is calculated at the inlet, outlet, and systematically selected intermediate points for each method. The analysis is conducted for two different systems, i.e., a laboratory-scale and an industrial scale PHX at different chevron angles. It is concluded that the effect of the variable heat transfer coefficient is more significant for the large-scale heat exchanger due to high flow rates, geometrical specifications, Reynolds number, and thermophysical properties. The deviation of the local heat transfer coefficient along the heat exchanger length is approximately 9–14% and 3–6% for industrial and laboratory scale PHX, while an area deviation of around 15% is observed.

Item Type: Article
Additional Information: Funding information: The authors acknowledge the support provided by Northumbria University, UK under reference# RDF20/EE/MCE/SHAHZAD. Also, acknowledge the support provided by Engr. Shahzeen Syed (an undergraduate student at KFUEIT) for graphical work presented in Table 2.
Subjects: H800 Chemical, Process and Energy Engineering
Department: Faculties > Engineering and Environment > Mechanical and Construction Engineering
Depositing User: John Coen
Date Deposited: 01 Dec 2021 08:58
Last Modified: 16 Oct 2022 03:31
URI: https://nrl.northumbria.ac.uk/id/eprint/47864

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