Heat transfer enhancement of a radiator with mass-producing nanofluids (EG/water-based Al2O3 nanofluids) for cooling a 100 kW high power system

Kim, Sung Hyoun; Jang, Seok Pil; Yang, Doo Jin; Byeon, Young Man

doi:10.1016/j.applthermaleng.2020.115780

Cited by 27 publications

(10 citation statements)

References 30 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…In nanotechnology, a particle is defined as a small object that behaves as a whole unit concerning its transport and properties. Choi et al (2020) first used the term "nanofluid" for fluids with suspended nanoparticles. Experimentally investigated the effect of convective heat transfer in nanofluids under laminar and turbulent flow regimes.…”

Section: Nano Coolants and Cooling Systemmentioning

confidence: 99%

Hybrid nano-coolants in automotive heat transfer – an updated report

Sandhya¹,

Ramasamy²,

Sudhakar³

et al. 2021

Maejo Int. J. Energ. Environ. Comm. or MIJEEC

View full text Add to dashboard Cite

Nano coolants have been attracting various researchers for efficient heat transfer agents. The efficacy of nanofluids as nano coolants is reviewed in the present study. The addition of nanoparticles to existing coolant fluids can enhance their heat transfer performance. Conventionally water and ethylene glycol are used as engine radiator coolants. The addition of ethylene glycol is needed to increase the boiling point of the water and decrease the freezing point. The convention also seems to be a crucial factor for heat exchanger performance. This is a requirement for vehicles that are being used under harsh weather conditions. Different types of nanoparticles used as nano coolants SiO2, TiO2, Al2O3, Cu/CuO, G/GO, CNT, and Hybrid nanoparticles, were extensively illustrated. Finally, nanofluids applications in the past decade were included. As many researchers have shown, they can be used to enhance radiator performance as well. In this review paper, studies of heat transfer performance of various Nanofluids as nano coolants conducted by researchers are studied. Finally, a conclusion is presented.

show abstract

Section: Nano Coolants and Cooling Systemmentioning

confidence: 99%

Hybrid nano-coolants in automotive heat transfer – an updated report

Sandhya¹,

Ramasamy²,

Sudhakar³

et al. 2021

Maejo Int. J. Energ. Environ. Comm. or MIJEEC

View full text Add to dashboard Cite

show abstract

“…He also noted that the performance of this hybrid nanofluid was dependent on the volume concentration and the shape of the solid particles. Choi et al 10 discussed enhancing the performance of a radiator used to cool a 100 kW high power system by employing an EG/water-based Al 2 O 3 nanoliquid they found that the nanofluid enhanced the heat transfer rate inside the radiator by 6.9%. Moreover, they demonstrated the nanofluid they used, could be mass-produced and that its long-term suspension stability was well maintained during the study period.…”

Section: Introductionmentioning

confidence: 99%

MHD darcy-forchheimer nanofluid flow and entropy optimization in an odd-shaped enclosure filled with a (MWCNT-Fe3O4/water) using galerkin finite element analysis

Al‐Kouz

Abderrahmane

Koulali

et al. 2021

Sci Rep

View full text Add to dashboard Cite

MHD nanoliquid convective flow in an odd-shaped cavity filled with a multi-walled carbon nanotube-iron (II, III) oxide (MWCNT-Fe3O4) hybrid nanofluid is reported. The side walls are adiabatic, and the internal and external borders of the cavity are isothermally kept at high and low temperatures of Th and Tc, respectively. The governing equations obtained with the Boussinesq approximation are solved using Galerkin Finite Element Method (GFEM). Impact of Darcy number (Da), Hartmann number (Ha), Rayleigh number (Ra), solid volume fraction (ϕ), and Heated-wall length effect are presented. Outputs are illustrated in forms of streamlines, isotherms, and Nusselt number. The impact of multiple parameters namely Rayleigh number, Darcy number, on entropy generation rate was analyzed and discussed in post-processing under laminar and turbulent flow regimes.

show abstract

“…With the continuous miniaturization and integration of electronic devices, the heat flux density continues to increase, and conventional cooling methods are no longer effective. Therefore, the heat dissipation problem of high heat flux density has been a research hotspot in the field of heat transfer [ 1 , 2 ]. In 1981, Tuckerman and Pease [ 3 ] proposed a silicon microchannel heat sink, which uses deionized water as a liquid cooling medium and whose heat dissipation capacity can be as high as 790 W/cm 2 .…”

Section: Introductionmentioning

confidence: 99%

Numerical Study on the Fluid Flow and Heat Transfer Characteristics of Al2O3-Water Nanofluids in Microchannels of Different Aspect Ratio

Zhang

2021

Micromachines

View full text Add to dashboard Cite

The study of the influence of the nanoparticle volume fraction and aspect ratio of microchannels on the fluid flow and heat transfer characteristics of nanofluids in microchannels is important in the optimal design of heat dissipation systems with high heat flux. In this work, the computational fluid dynamics method was adopted to simulate the flow and heat transfer characteristics of two types of water-Al2O3 nanofluids with two different volume fractions and five types of microchannel heat sinks with different aspect ratios. Results showed that increasing the nanoparticle volume fraction reduced the average temperature of the heat transfer interface and thereby improved the heat transfer capacity of the nanofluids. Meanwhile, the increase of the nanoparticle volume fraction led to a considerable increase in the pumping power of the system. Increasing the aspect ratio of the microchannel effectively improved the heat transfer capacity of the heat sink. Moreover, increasing the aspect ratio effectively reduced the average temperature of the heating surface of the heat sink without significantly increasing the flow resistance loss. When the aspect ratio exceeded 30, the heat transfer coefficient did not increase with the increase of the aspect ratio. The results of this work may offer guiding significance for the optimal design of high heat flux microchannel heat sinks.

show abstract

Heat transfer enhancement of a radiator with mass-producing nanofluids (EG/water-based Al2O3 nanofluids) for cooling a 100 kW high power system

Cited by 27 publications

References 30 publications

Hybrid nano-coolants in automotive heat transfer – an updated report

Hybrid nano-coolants in automotive heat transfer – an updated report

MHD darcy-forchheimer nanofluid flow and entropy optimization in an odd-shaped enclosure filled with a (MWCNT-Fe3O4/water) using galerkin finite element analysis

Numerical Study on the Fluid Flow and Heat Transfer Characteristics of Al2O3-Water Nanofluids in Microchannels of Different Aspect Ratio

Contact Info

Product

Resources

About