Turbulence

Nusselt number

Engineering

Nanoparticle

Condensation

Materials science

Reynolds number

Entropy (arrow of time)

Vapor quality

Nano-

Heat exchanger

Thermodynamics

Physics

Nanotechnology

Process engineering

Composite material

Bejan number

Nanofluid

Mass flux

Refrigerant

Exergy

International Journal of Heat and Mass Transfer

In this research, entropy generation and exergy loss of nano-refrigerant condensation process inside a horizontal tube is investigated experimentally. Mixture of oil and CuO nanoparticles is added to R600a and nano-refrigerant is produced. Influences of vapor quality, mass flux, concentration of nanoparticles on entropy generation and exergy loss are investigated. Results indicate that increasing concentration of nanoparticles leads to increase the frictional entropy generation. Bejan number and exergy loss decreases with increase of vapor quality and mass flux of nanofluid.

Experimental investigation for entropy generation and exergy loss of nano-refrigerant condensation process