Experimental investigation ofthermal conductivity andpressuredropfor water-nanofluid mixture

Abstract EN

This research investigates experimentally the thermal conductivity and the pressure drop of a new kind of engineering materials consisting of nanometer sized particles dispersed in base fluid named nanofluid.

The study investigatesnanofluids containing CuO and γ-AlR2ROR3R oxide nanoparticles in distilled water as base fluid in different particle sizes and concentrations.

The experimental results emphasize the enhancement of the thermal conductivity due to the nanoparticles presence in the fluid.

Also the effect of the particle size and concentration on the thermal conductivity.

These results show noticeable enhancement in the thermal conductivity especially for the CuO / distilled water nanofluid which reaches to (1.07 %), while reaches to (1.05 %) for theγ- AlR2ROR3R / distilled water nanofluidat the concentration of (6 % vol.) and at the room temperature.

The experimental results of pressure drop show that the nanofluids in the laminar flow will not cause extra penalty in the pumping power.

A good agreement was found between the experimental obtained data for this research and other results from published papers.