Fouling Behavior and Dispersion Stability of Nanoparticle-Based Refrigeration Fluid

Eleonora Ponticorvo, Mariagrazia Iuliano, Claudia Cirillo, Angelo Maiorino, Ciro Aprea and Maria Sarno
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Eleonora Ponticorvo: Department of Physics “E.R. Caianiello”, University of Salerno, 84084 Fisciano, Italy
Mariagrazia Iuliano: Nano_Mates (Research Centre for Nanomaterials and Nanotechnology at the University of Salerno), University of Salerno, 84084 Fisciano, Italy
Claudia Cirillo: Department of Physics “E.R. Caianiello”, University of Salerno, 84084 Fisciano, Italy
Angelo Maiorino: Department of Industrial Engineering, University of Salerno, 84084 Fisciano, Italy
Ciro Aprea: Department of Industrial Engineering, University of Salerno, 84084 Fisciano, Italy
Maria Sarno: Department of Physics “E.R. Caianiello”, University of Salerno, 84084 Fisciano, Italy

Energies, 2022, vol. 15, issue 9, 1-21

Abstract: Nanofluids as heat transfer fluids have been acquiring popularity ever since their beginning. Therefore, the refrigeration research could not keep itself away from the ever-rising horizon of nanofluid applications. On the other hand, nanofluid stability remains the critical bottleneck for use. A significant reduction in nanofluids’ performance can derivate from instability phenomena. Looking to industrial applications, nanofluid long-term stability and reusability are crucial requisites. Nanoparticles’ deposits induce microchannel circuit obstruction, limiting the proper functioning of the device and negating the beneficial characteristics of the nanofluid. The aggregation and sedimentation of the particles may also determine the increased viscosity and pumping cost, and reduced thermal properties. So, there is a need to address the features of nanofluid starting from realization, evaluation, stabilization methods, and operational aspects. In this review, investigations of nanorefrigerants are summarized. In particular, a description of the preparation procedures of nanofluids was reported, followed by a deep elucidation of the mechanism of nanofluid destabilization and sedimentation, and finally, the literature results in this field were reviewed.

Keywords: nanoparticles; nanofluids; nanorefrigerants; stability (search for similar items in EconPapers)
JEL-codes: Q Q0 Q4 Q40 Q41 Q42 Q43 Q47 Q48 Q49 (search for similar items in EconPapers)
Date: 2022
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