Nanofluids widely used to enhance heat transfer because of increase in thermal conductivity, at the same time the pressure drop increases as a result of an increase in viscosity of the new fluid. It is accompanied by smaller temperature gradients within the fluid and larger pressure drops when increasing the nanoparticle concentration. Pressure drop has a large effect on the exergy loss. Why is the exergy efficiency increased when using nanofluids?
Hayder,
Exergy gain seems to increase with the increase of nanoparticle volume concentration. However, it decreases with the augmentation of volume flow rate.
http://aurak.ac.ae/publications/Energy-and-exergy-analysis-of-alumina%23U2013water-nano%23Ufb02uid-for-an-electronic-liquid-cooling-system.pdf
Regards.
I think Exergy gain increase due to increase of nanoparticle volume
Dr / Hayder Jaffal
i think to study the whole performance it is recommended to investigate the performance evaluation criteria rather than the exergy. In the other hand, increasing the exergy gain it is due to the reduction in the exergy destruction that depends on the degree of motion of the particle of fluid that decreases with increasing the volume fraction.
Dear Mounir, Khaled , Khaoula and Hussein
I greatly appreciate your comment.
Many thanks
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