Heat transfer enhancement by hybrid nano additives—Graphene nanoplatelets/cellulose nanocrystal for the automobile cooling system (Radiator)

Yaw, Chong Tak and Koh, S. P. and Sandhya, Madderla and Kadirgama, Kumaran and Tiong, Sieh Kiong and Ramasamy, Devarajan and Sudhakar, Kumarasamy and Samykano, Mahendran and Benedict, F. and Tan, Chung Hong (2023) Heat transfer enhancement by hybrid nano additives—Graphene nanoplatelets/cellulose nanocrystal for the automobile cooling system (Radiator). Nanomaterials, 13 (808). pp. 1-28. ISSN 2079-4991. (Published)

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A radiator is used to remove a portion of the heat generated by a vehicle engine. It is challenging to efficiently maintain the heat transfer in an automotive cooling system even though both internal and external systems need enough time to keep pace with catching up with evolving engine technology advancements. The effectiveness of a unique hybrid’s heat transfer nanofluid was investigated in this study. The hybrid nanofluid was mainly composed of graphene nanoplatelets (GnP), and cellulose nanocrystals (CNC) nanoparticles suspended in a 40:60 ratio of distilled water and ethylene glycol. A counterflow radiator equipped with a test rig setup was used to evaluate the hybrid nano fluid’s thermal performance. According to the findings, the proposed GNP/CNC hybrid nanofluid performs better in relation to improving the efficiency of heat transfer of a vehicle radiator. The suggested hybrid nanofluid enhanced convective heat transfer coefficient by 51.91%, overall heat transfer coefficient by 46.72%, and pressure drop by 34.06% with respect to distilled water base fluid. Additionally, the radiator could reach a better CHTC with 0.01% hybrid nanofluid in the optimized radiator tube by the size reduction assessment using computational fluid analysis. In addition to downsizing the radiator tube and increasing cooling capacity over typical coolants, the radiator takes up less space and helps to lower the weight of a vehicle engine. As a result, the suggested unique hybrid graphene nanoplatelets/cellulose nanocrystal-based nanofluids perform better in heat transfer enhancement in automobiles.

Item Type: Article
Additional Information: Indexed by Scopus
Uncontrolled Keywords: CNC; Coefficients; Correlation; Energy; GNPs; Heat transfer; Hybrid nanofluid; Radiator
Subjects: T Technology > T Technology (General)
T Technology > TA Engineering (General). Civil engineering (General)
T Technology > TJ Mechanical engineering and machinery
T Technology > TL Motor vehicles. Aeronautics. Astronautics
Faculty/Division: Institute of Postgraduate Studies
Faculty of Mechanical and Automotive Engineering Technology
College of Engineering
Centre for Research in Advanced Fluid & Processes (Fluid Centre)
Depositing User: Mr Muhamad Firdaus Janih@Jaini
Date Deposited: 13 Jul 2023 03:33
Last Modified: 13 Jul 2023 03:33
URI: http://umpir.ump.edu.my/id/eprint/37621
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