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Heat Transfer Research
インパクトファクター: 0.404 5年インパクトファクター: 0.8 SJR: 0.264 SNIP: 0.504 CiteScore™: 0.88

ISSN 印刷: 1064-2285
ISSN オンライン: 2162-6561

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Heat Transfer Research

DOI: 10.1615/HeatTransRes.2018020810
pages 1527-1543

PERFORMANCE OF AN AUTOMOTIVE CAR RADIATOR OPERATED WITH NANOFLUID-BASED COOLANT

Shiva Kumar
Department of Mechanical and Manufacturing Engineering, Manipal Institute of Technology, Manipal Academy of Higher Education, Manipal — 576104, India
Pijakala Dinesha
Department of Mechanical and Manufacturing Engineering, Manipal Institute of Technology, Manipal Academy of Higher Education, Manipal — 576104, India
Ashutosh Gaggad
Department of Mechanical and Manufacturing Engineering, Manipal Institute of Technology, Manipal Academy of Higher Education, Manipal — 576104, India
Kshitij Mehrotra
Department of Mechanical and Manufacturing Engineering, Manipal Institute of Technology, Manipal Academy of Higher Education, Manipal — 576104, India

要約

Coolants such as water and ethylene glycol have been used traditionally in automotive car radiators. However, due to their low thermal conductivity a class of fluids known as nanofluids is used to enhance heat transfer characteristics. Nanofluids are suspended metallic or nonmetallic oxide nanoparticles in traditional heat transfer fluids that have bulk thermal conductivity higher than that of the base fluids. This experimental study is based on the application of an aluminum oxide (Al2O3)-based nanofluid with water as a base fluid in automotive car radiators. The effect on the overall heat transfer coefficient, heat transfer rate, and pressure drop are calculated by varying the percentage volume fraction of nanoparticles in water, volume flow rate of the nanofluid, and also the inlet temperature of the nanofluid. It is observed that as the nanoparticle concentration increased, the overall heat transfer coefficient and heat transfer rate increase, peaking at 0.8%. As the inlet temperature of the nanofluid increases, the overall heat transfer coefficient was found to be increasing. For a nanoparticle concentration of 0.8% with water, for a flow rate of 3 LPM and for inlet temperature of 80°C, the overall heat transfer coefficient and heat transfer rates were increased by 36.27% and 25.95%, respectively, when compared to pure water.


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