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

Ahmed Saad Soliman (), Li Xu, Junguo Dong and Ping Cheng
Additional contact information
Ahmed Saad Soliman: Mechanical Power Engineering Department, Mansoura University, El-Mansoura 35516, Egypt
Li Xu: School of Environmental and Chemical Engineering, Shanghai University, Shanghai 200444, China
Junguo Dong: School of Environmental and Chemical Engineering, Shanghai University, Shanghai 200444, China
Ping Cheng: School of Environmental and Chemical Engineering, Shanghai University, Shanghai 200444, China

Sustainability, 2022, vol. 14, issue 22, 1-16

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 (search for similar items in EconPapers)
JEL-codes: O13 Q Q0 Q2 Q3 Q5 Q56 (search for similar items in EconPapers)
Date: 2022
References: View references in EconPapers View complete reference list from CitEc
Citations:

Downloads: (external link)
https://www.mdpi.com/2071-1050/14/22/15143/pdf (application/pdf)
https://www.mdpi.com/2071-1050/14/22/15143/ (text/html)

Related works:
This item may be available elsewhere in EconPapers: Search for items with the same title.

Export reference: BibTeX RIS (EndNote, ProCite, RefMan) HTML/Text

Persistent link: https://EconPapers.repec.org/RePEc:gam:jsusta:v:14:y:2022:i:22:p:15143-:d:973524

Access Statistics for this article

Sustainability is currently edited by Ms. Alexandra Wu

More articles in Sustainability from MDPI
Bibliographic data for series maintained by MDPI Indexing Manager ().