What is it about?
This work investigates the potential of hybrid nanoparticles suspended in pure water to enhance the thermal performance of heat exchangers at minimal weight fractions. A hybrid nanofluid consisting of 50% ZnO and 50% Al2O3 nanoparticles dispersed in pure water at weight fractions of 0.1%, 0.3%, and 0.5% was prepared. An experimental rig, featuring a straight horizontal tube with a constant wall heat flux, was equipped with eight thermocouples positioned at the inlet, outlet, and along the tube's surface. The study focuses on the impact of the hybrid nanofluid on the friction factors and heat transfer coefficients within a Reynolds number range of 5000 to 20000.
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Why is it important?
Hybrid nanofluids (fluids containing two different types of nanoparticles) have higher thermal conductivity than conventional fluids like water or oil. Studying their behavior in a heated tube helps engineers increase the rate of heat transfer, which is critical for systems such as:
Perspectives
1. Development of Advanced Hybrid Nanofluids 2. Optimization Between Heat Transfer and Friction Factor 3. Application in Renewable Energy Systems
Firas Aziz Ali
Read the Original
This page is a summary of: Friction Factor and Heat Transfer Enhancement of Hybrid Nanofluids in a Heated Circular Tube, International Journal of Heat and Technology, October 2023, International Information and Engineering Technology Association,
DOI: 10.18280/ijht.410530.
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