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CFD-Based Comparative Performance Analysis of Different Nanofluids Used in Automobile Radiators

  • Tasueef Aized KhanEmail author
  • Hassaan Ahmad
Research Article - Mechanical Engineering

Abstract

In this research, four different water-based nanofluids \((\hbox {Al}_{2}\hbox {O}_{3}\), \(\hbox {TiO}_{2}\), ZnO, and \(\hbox {SiO}_{2})\) are used in a horizontal flat tube radiator. CFD-based thermal analyses were performed to predict the heat transfer rate and pressure drop across the radiator. During the analysis, inlet velocity of air and working fluid were kept the same. The effect of volumetric concentration was analyzed. A two-phase mixture model was used to capture the flow behavior of nanofluids. The results of CFD analyses revealed that the nanofluids have better overall heat transfer. ZnO and \(\hbox {Al}_{2}\hbox {O}_{3}\) show better thermal properties with an increase of 4.9 to 15%, while other two nanofluids have a very small increase in heat transfer from 0 to 4%. However, the pressure drop in the radiator increased with the increase in volume fraction.

Keywords

Radiators CFD Nanofluids Heat transfer 

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Copyright information

© King Fahd University of Petroleum & Minerals 2019

Authors and Affiliations

  1. 1.Department of Mechanical EngineeringUniversity of Engineering and TechnologyLahorePakistan
  2. 2.Department of TechnologyThe University of LahoreLahorePakistan

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