Numerical Investigation of the Ribs’ Shape, Spacing, and Height on Heat Transfer Performance of Turbulent Flow in a Flat Plate Heat Exchanger

Soliman, Ahmed Saad; Xu, Li; Dong, Junguo; Cheng, Ping

doi:10.3390/su142215143

Open AccessArticle

Numerical Investigation of the Ribs’ Shape, Spacing, and Height on Heat Transfer Performance of Turbulent Flow in a Flat Plate Heat Exchanger

by

Ahmed Saad Soliman

^1,*

,

Li Xu

²,

Junguo Dong

² and

Ping Cheng

²

¹

Mechanical Power Engineering Department, Mansoura University, El-Mansoura 35516, Egypt

²

School of Environmental and Chemical Engineering, Shanghai University, Shanghai 200444, China

^*

Author to whom correspondence should be addressed.

Sustainability 2022, 14(22), 15143; https://doi.org/10.3390/su142215143

Submission received: 30 September 2022 / Revised: 27 October 2022 / Accepted: 14 November 2022 / Published: 15 November 2022

(This article belongs to the Special Issue Towards COP27: The Water-Food-Energy Nexus in a Changing Climate in the Middle East and North Africa)

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Abstract

This paper presents a numerical study of detailed heat transfer and flow field characteristics in a flat plate heat exchanger with different types of ribs (rectangular and triangular) with different heights (H: 2.5, 5, 7.5, and 10 mm) and spacings (S: 75, 95, 128, and 195 mm). A comprehensive numerical model was established and validated with experimental data in the literature, resulting in good agreement. The effects of the height, spacing, and shape of the ribs in addition to thermal-hydraulic parameters were investigated over two values of the Reynolds number (9880–3210). The results concluded that the highest values of the thermal-hydraulic parameters are 1.62 and 1.84 for the hot and cold air sides, in the rectangular ribs, with a thickness, height, and spacing of 75 mm, and 95 mm, respectively. It is worth mentioning that the rectangular ribs have the maximum value of thermal performance at the high and low values of the Reynolds number of turbulent flows. The present design can be used in waste heat recovery systems.

Keywords: numerical simulation; heat transfer enhancement; turbulent flow; plate heat exchanger

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MDPI and ACS Style

Soliman, A.S.; Xu, L.; Dong, J.; Cheng, P. Numerical Investigation of the Ribs’ Shape, Spacing, and Height on Heat Transfer Performance of Turbulent Flow in a Flat Plate Heat Exchanger. Sustainability 2022, 14, 15143. https://doi.org/10.3390/su142215143

AMA Style

Soliman AS, Xu L, Dong J, Cheng P. Numerical Investigation of the Ribs’ Shape, Spacing, and Height on Heat Transfer Performance of Turbulent Flow in a Flat Plate Heat Exchanger. Sustainability. 2022; 14(22):15143. https://doi.org/10.3390/su142215143

Chicago/Turabian Style

Soliman, Ahmed Saad, Li Xu, Junguo Dong, and Ping Cheng. 2022. "Numerical Investigation of the Ribs’ Shape, Spacing, and Height on Heat Transfer Performance of Turbulent Flow in a Flat Plate Heat Exchanger" Sustainability 14, no. 22: 15143. https://doi.org/10.3390/su142215143

APA Style

Soliman, A. S., Xu, L., Dong, J., & Cheng, P. (2022). Numerical Investigation of the Ribs’ Shape, Spacing, and Height on Heat Transfer Performance of Turbulent Flow in a Flat Plate Heat Exchanger. Sustainability, 14(22), 15143. https://doi.org/10.3390/su142215143

Note that from the first issue of 2016, this journal uses article numbers instead of page numbers. See further details here.

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Numerical Investigation of the Ribs’ Shape, Spacing, and Height on Heat Transfer Performance of Turbulent Flow in a Flat Plate Heat Exchanger

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