STUDI EKSPERIMENTAL PERPINDAHAN PANAS DAN PENURUNAN TEKANAN DARI HIBRIDA NANOFLUIDA DI PENDINGIN RADIATOR MOBIL

Ery Diniardi; Hasan Basri; Anwar Ilmar Ramadhan; Deni Almanda; Alvika Meta Sari

doi:10.24853/jurtek.14.2.221-232

STUDI EKSPERIMENTAL PERPINDAHAN PANAS DAN PENURUNAN TEKANAN DARI HIBRIDA NANOFLUIDA DI PENDINGIN RADIATOR MOBIL

Ery Diniardi, Hasan Basri, Anwar Ilmar Ramadhan, Deni Almanda, Alvika Meta Sari

Abstract

The use of nanoparticle coolants in car radiators increases the rate of heat transfer and allows for a smaller overall radiator size. The transfer characteristics of hybrid nanofluids with various compositions of TiO₂-SiO₂ (40:60, 60:40, 80:20) based water/EG nanoparticles for a volume concentration of 1.0% were investigated experimentally. By dispersing the hybrid nanofluids in a mixture of water/ethylene glycol (60:40), the composition of the TiO₂-SiO₂ nanoparticles (40:60, 60:40, 80:20) was varied for a volume concentration of 1.0%. Experiments were carried out using a coolant flow rate between 2-12 LPM for a working fluid temperature of 70 °C, while the air flow velocity remained constant at an average of 4 m/s, to understand the effect of coolant flow velocity on heat transfer. The thermal performance of hybrid nanofluids in a water/EG mixture (60:40) was investigated for variations in the composition of TiO₂-SiO₂ nanoparticles (40:60, 60:40, 80:20) for a volume concentration of 1.0% and a working temperature of 70 °C. The heat transfer coefficient obtained is 32.1%, the maximum increase occurs in the TiO₂-SiO₂ nanofluid with the composition (40:60), while the 29.2% increase occurs in the nanofluid hybrid (60:40), for the nanofluid hybrid (80:20) it is an increase of 31.1%.

Keywords

Hybrid nanofluids, composites, nanoparticles, heat transfer

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DOI: https://doi.org/10.24853/jurtek.14.2.221-232