Experimental Investigation on Heat Transfer Enhancement in Shell and Tube Heat Exchanger Using Graphene Nanofluids

Year : 2025 | Volume : 12 | Issue : 03 | Page : 32 38
    By

    Manujesh B J,

  • Raghavendra Prasad S A,

  1. Professor & Head, Department of mechanical Engineering, Vivekananda College of Engineering and Technology Nehru Nagara, Puttur, Karnataka, India
  2. Assistant Professor, Department of mechanical Engineering, Vivekananda College of Engineering and Technology Nehru Nagara, Puttur, Karnataka, India

Abstract

The paper focuses on the dispersion of Graphene nanoparticles in a water–ethylene glycol based fluid to investigate their impact on the convective heat transfer performance of the resulting nanofluid. Various concentrations of graphene nanoparticles were prepared, and the nanofluids were subjected to different ultrasonication durations to ensure proper dispersion and stability of the nanoparticles within the base fluid. The study involved extensive experimental evaluation to systematically analyze how the nanoparticle loading concentration and the time of sonication affected the convective heat transfer coefficient, a critical parameter influencing heat exchanger performance. The results demonstrated a substantial enhancement in the heat transfer coefficient, with improvements reaching up to 27% when the nanoparticle concentration and sonication duration were optimized. This enhancement is attributed to the excellent thermal properties of graphene and the improved nanoparticle dispersion achieved through ultrasonication. The findings highlight the significant potential of graphene-based nanofluids in improving heat exchanger efficiencies, leading to more compact and energy-efficient thermal management systems. These improvements can contribute to reduced operational energy consumption and facilitate the design of smaller, cost-effective heat exchangers, offering both economic and environmental benefits in various industrial applications. Thus, graphene nanofluids represent a promising avenue for advancing thermal fluid technologies.

Keywords: Graphene Nanofluid, Shell & Tube, Heat Exchanger, Ultrasonication, Thermal Performance

[This article belongs to Journal of Automobile Engineering and Applications ]

How to cite this article:
Manujesh B J, Raghavendra Prasad S A. Experimental Investigation on Heat Transfer Enhancement in Shell and Tube Heat Exchanger Using Graphene Nanofluids. Journal of Automobile Engineering and Applications. 2025; 12(03):32-38.
How to cite this URL:
Manujesh B J, Raghavendra Prasad S A. Experimental Investigation on Heat Transfer Enhancement in Shell and Tube Heat Exchanger Using Graphene Nanofluids. Journal of Automobile Engineering and Applications. 2025; 12(03):32-38. Available from: https://journals.stmjournals.com/joaea/article=2025/view=234107


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Regular Issue Subscription Original Research
Volume 12
Issue 03
Received 06/12/2025
Accepted 08/12/2025
Published 12/12/2025
Publication Time 6 Days
101

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