Ultrasonic Velocity and Heat Transfer Measurement of Binary Fluid (Diethyl Amine + Tetra Hydro Furan) and Hybrid CuO Nanofluid (CuO + Diethyl Amine + Tetra Hydro Furan)

Abstract

Diethylamine (DEA)+Tetrahydrofuran (THF) Binary fluids and CuO+Diethylamine+Tetrahydrofuran Hybrid CuO nanofluids of various concentrations are prepared using ultrasonic assisted methods. Ultrasonic velocity, thermal conductivity and viscosity values of binary fluids and hybrid CuO nanofluids are measured at temperatures ranging from 298 K to 318 K. Ultrasonic velocity can be used to calculate several acoustic parameters like Adiabatic compressibility (β), Inter molecular free length (Lf), Acoustical impedance (Z) which is very useful in the study of molecular interactions in the binary base fluids and hybrid CuO nanofluids. From the ultrasonic velocity studies the weak interaction present in the binary base fluids and hybrid nanofluids is confirmed. Our experimental result shows that thermal conductivity and viscosity values increases with the addition of CuO nanoparticle. The Brownian movement of the particle and inter particle forces between the molecules is responsible for the changes in thermal conductivity and viscosity.