Numerical Investigation of Heat Transfer and Fluid Flow Characteristics of Al2O3 Nanofluid In A Double Tube Heat Exchanger With Turbulator Insertion

Tavousi, Ebrahim and Perera, Noel and Flynn, Dominic and Hasan, Reaz (2023) Numerical Investigation of Heat Transfer and Fluid Flow Characteristics of Al2O3 Nanofluid In A Double Tube Heat Exchanger With Turbulator Insertion. In: 9th World Congress on Mechanical, Chemical, and Material Engineering (MCM'23) Brunel University, London, United Kingdom –August 06-08, 2023, 6th - 8th August 2023, London, England.

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Abstract

One of the primary objectives associated with the double tube heat exchanger is to enhance the heat transfer rate and improve the overall system performance. A promising approach to achieve these improvements involves combining turbulator insertion and nanofluid techniques. This study presents a numerical investigation that examines the impact of Al2O3-water nanofluid within the inner tube, along with turbulator insertion in the form of square-shaped ribs, on the heat transfer and fluid flow characteristics of the double tube heat exchanger. The findings indicate that an increase in the volume fraction of nanofluid leads to an enhanced heat transfer rate. Additionally, reducing the spacing between the turbulator ribs in the double tube heat exchanger results in an increase of up to 50% in the Nusselt number compared to a heat exchanger without turbulator insertion. The maximum performance evaluation criterion achieved in this study is 1.05.

Item Type:	Conference or Workshop Item (Paper)
Identification Number:	10.11159/htff23.218
Dates:	Date Event 30 May 2023 Accepted 6 August 2023 Published Online
Subjects:	CAH10 - engineering and technology > CAH10-01 - engineering > CAH10-01-02 - mechanical engineering CAH10 - engineering and technology > CAH10-03 - materials and technology > CAH10-03-02 - materials technology
Divisions:	Faculty of Computing, Engineering and the Built Environment > College of Engineering
Depositing User:	Dr Noel Perera
Date Deposited:	13 Sep 2023 11:18
Last Modified:	20 Jun 2024 11:50
URI:	https://www.open-access.bcu.ac.uk/id/eprint/14761

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