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STUDI EKSPERIMENTAL PERPINDAHAN PANAS PADA RADIATOR MENGGUNAKAN NANOFLUIDA AIR-ETILEN GLIKOL/Al2O3

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Automotive technology will continue to evolve over time, with cooling system efficiency becoming a critical factor in vehicle performance and fuel consumption. Radiators, as the main element of cooling systems, are influenced by the thermal properties of working fluids. However, the low thermal conductivity of conventional fluids (water-ethylene glycol mixtures) can reduce system efficiency. Therefore, this study proposes the innovative application of nanofluids as a replacement for conventional coolants. The nanoparticles added in this study were Al2O3 with variations in volume fraction ratios of 0.3, 0.5, and 0.7% and a base fluid ratio of 65% water and 35% ethylene glycol. The air velocity at the fan was set at 4 m/s, and the mass flow rate used was 600 L/h. The inlet temperature of the cooling fluid radiator was varied at 30, 50, and 70℃. The results showed that the highest heat transfer rate was obtained with a working fluid of 0.7% volume fraction nanofluid at a temperature of 70℃, which was 3475.96313 W. The highest overall heat transfer coefficient for 0.7% nanofluid at a temperature of 70℃ was 5712.24616 W/(m^2.℃). The highest radiator efficiency was obtained at a temperature of 70℃ with a cooling fluid in the form of a 0.7% volume fraction nanofluid, which was 77.04%, when compared to the conventional fluid efficiency value at the highest temperature (70℃) of 51.32%. Thus, the increase between the two types of working fluids was 50.01%.

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Detail Information

Series Title

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Call Number

T1886252025

Publisher

Indralaya : Prodi Teknik Mesin, Fakultas Teknik Universitas Sriwijaya., 2025

Collation

xxix, 71 hlm.; ilus.; tab.; 29 cm

Language

Indonesia

ISBN/ISSN

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Classification

621.402 07

Content Type

Text

Media Type

-

Carrier Type

-

Edition

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Subject(s)

Prodi Teknik Mesin
Teknologi Perpindahan Panas

Specific Detail Info

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MI

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