5 Nanorefrigerants in engineering: advances, challenges, and insights from experimental and CFD simulations and potential applications
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Emmanuel O. Atofarati
Abstract
The advancement of nanorefrigerants signifies a major leap in refrigeration and cooling technologies, driven by the pressing need for improved efficiency and reduced environmental impact. This chapter provides a comprehensive review of the historical development, experimental findings, and computational fluid dynamics (CFD) simulations of nanorefrigerants, emphasizing their enhanced thermophysical properties such as increased thermal conductivity, altered viscosity, and improved specific heat capacity. Experimental setups, including vapor compression refrigeration systems, thermosyphons, and horizontal tube heat exchangers, validate these enhancements. Key parameters such as nanoparticle size, type, shape, and concentration are crucial in optimizing performance metrics like power consumption, coefficient of performance, cooling rates, and heat transfer efficiency. The role of surfactants and additives in stabilizing nanofluids is also highlighted. CFD simulations offer critical insights into the fluid flow, heat transfer, and thermodynamic performance of nanorefrigerants, with validation against experimental data ensuring accuracy and reliability. The potential applications in heating, ventilation, and air conditioning systems, automotive air conditioning, industrial refrigeration, and solar-powered cooling systems are explored, demonstrating substantial energy savings and performance improvements. This chapter concludes by addressing future research directions, focusing on optimizing nanoparticle materials, and overcoming challenges related to stability and environmental impact.
Abstract
The advancement of nanorefrigerants signifies a major leap in refrigeration and cooling technologies, driven by the pressing need for improved efficiency and reduced environmental impact. This chapter provides a comprehensive review of the historical development, experimental findings, and computational fluid dynamics (CFD) simulations of nanorefrigerants, emphasizing their enhanced thermophysical properties such as increased thermal conductivity, altered viscosity, and improved specific heat capacity. Experimental setups, including vapor compression refrigeration systems, thermosyphons, and horizontal tube heat exchangers, validate these enhancements. Key parameters such as nanoparticle size, type, shape, and concentration are crucial in optimizing performance metrics like power consumption, coefficient of performance, cooling rates, and heat transfer efficiency. The role of surfactants and additives in stabilizing nanofluids is also highlighted. CFD simulations offer critical insights into the fluid flow, heat transfer, and thermodynamic performance of nanorefrigerants, with validation against experimental data ensuring accuracy and reliability. The potential applications in heating, ventilation, and air conditioning systems, automotive air conditioning, industrial refrigeration, and solar-powered cooling systems are explored, demonstrating substantial energy savings and performance improvements. This chapter concludes by addressing future research directions, focusing on optimizing nanoparticle materials, and overcoming challenges related to stability and environmental impact.
Chapters in this book
- Frontmatter I
- Preface V
- Contents IX
- 1 Impact of Hall current and aligned magnetic field on magnetized hybrid flow of MgO‐Ag/H2O over a movable slender needle 1
- 2 Optimization of entropy in bioconvective and reactive micropolar nanofluid flow with Arrhenius kinetics 23
- 3 CFD heat transfer study of nano-enhanced phase change material 45
- 4 Magnetothermal and magnetorheological nanofluids: simulation techniques, biomedical engineering applications, and potential health risks 71
- 5 Nanorefrigerants in engineering: advances, challenges, and insights from experimental and CFD simulations and potential applications 109
- 6 Interaction of Lorentz force on Darcy- Forchheimer hybrid nanofluid flow over a stretching sheet in a porous medium 165
- 7 Impact of motile microorganisms on 3D flow of non-Newtonian thermofluid induced by exponentially stretching sheet: biomedicine and engineering applications 181
- 8 Lattice Boltzmann simulation of copperwater nanofluid 217
- 9 Stagnation point flow of MHD nanofluid over an exponentially stretching sheet with radiation 237
- 10 Entropy analysis of Al2O3/water nanofluid in viscous fluid flow with Joule heating and viscous dissipation over a permeable radiated stretching disk: a comparative study of nanoparticle shapes 261
- 11 Solar-powered magnetoelectrokinetic peristaltic transport of thermally radiative Jeffrey nanofluids in asymmetric porous media 289
- 12 Magnetized nanofluids flow in porous enclosures containing elliptical cylinder of varying aspect ratios 319
- 13 Dufour and Soret effects on nanofluid over an exponentially stretching sheet with chemical reaction 337
- 14 Heat transfer in dissipative water-based hybrid nanofluid under radiation phenomenon via OHAM 357
- 15 Heat and mass transfer analysis of Casson hybrid nanofluid flow over a stretching sheet with velocity slip and suction/injection 379
- Index 395
Chapters in this book
- Frontmatter I
- Preface V
- Contents IX
- 1 Impact of Hall current and aligned magnetic field on magnetized hybrid flow of MgO‐Ag/H2O over a movable slender needle 1
- 2 Optimization of entropy in bioconvective and reactive micropolar nanofluid flow with Arrhenius kinetics 23
- 3 CFD heat transfer study of nano-enhanced phase change material 45
- 4 Magnetothermal and magnetorheological nanofluids: simulation techniques, biomedical engineering applications, and potential health risks 71
- 5 Nanorefrigerants in engineering: advances, challenges, and insights from experimental and CFD simulations and potential applications 109
- 6 Interaction of Lorentz force on Darcy- Forchheimer hybrid nanofluid flow over a stretching sheet in a porous medium 165
- 7 Impact of motile microorganisms on 3D flow of non-Newtonian thermofluid induced by exponentially stretching sheet: biomedicine and engineering applications 181
- 8 Lattice Boltzmann simulation of copperwater nanofluid 217
- 9 Stagnation point flow of MHD nanofluid over an exponentially stretching sheet with radiation 237
- 10 Entropy analysis of Al2O3/water nanofluid in viscous fluid flow with Joule heating and viscous dissipation over a permeable radiated stretching disk: a comparative study of nanoparticle shapes 261
- 11 Solar-powered magnetoelectrokinetic peristaltic transport of thermally radiative Jeffrey nanofluids in asymmetric porous media 289
- 12 Magnetized nanofluids flow in porous enclosures containing elliptical cylinder of varying aspect ratios 319
- 13 Dufour and Soret effects on nanofluid over an exponentially stretching sheet with chemical reaction 337
- 14 Heat transfer in dissipative water-based hybrid nanofluid under radiation phenomenon via OHAM 357
- 15 Heat and mass transfer analysis of Casson hybrid nanofluid flow over a stretching sheet with velocity slip and suction/injection 379
- Index 395
