Effects of thickness of boiling-induced nanoparticle deposition on the saturation of critical heat flux enhancement

Park, Seong Dae; Moon, Sung Bo; Bang, In Cheol

doi:10.1016/j.ijheatmasstransfer.2014.06.090

Cited by 40 publications

(16 citation statements)

References 18 publications

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“…They found that the capillarity and the thickness of the nanoparticle layers showed good correlations for the evaluation of the CHF values, rather than wettability. In a similar study, Park et al [91] determined that the CFH was gradually decreased over the critical boiling time. They stated that the change of CHF in short and long boiling times could be explained by the increased wettability and hydrodynamic instability changes and by the decrease of porosity, respectively.…”

Section: Accepted Manuscriptmentioning

confidence: 90%

A comprehensive review on pool boiling of nanofluids

Çiloğlu

Bölükbaşi

2015

Applied Thermal Engineering

140

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Section: Accepted Manuscriptmentioning

confidence: 90%

A comprehensive review on pool boiling of nanofluids

Çiloğlu

Bölükbaşi

2015

Applied Thermal Engineering

140

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“…Experimental investigation was carried out on saturated pool boiling CHF with Ni-Cr nanoparticle having coating thickness of 50 nm at atmosphere pressure at 0.01 vol.% alumina. Long pre coating time decreases CHF [41].…”

Section: Boiling Of Nanofluid Through Heating Tube/rodmentioning

confidence: 96%

“…According to [24,26,30,36,38,49,56] surface wettability increases the CHF. In [37,39,41] concluded that as effective surface area of heating increases CHF increases. Reference [47] reported that nanofluids in buffer solutions allow a lesser enhancement in CHF than in strong electrolyte i. e. in high ionic concentration.…”

Section: Boiling Of Nanofluid Through Circular Platementioning

confidence: 99%

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A comprehensive review on pool boiling heat transfer using nanofluids

Khan

Ali

2019

Therm sci

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Nanofluids are suspensions of nanoparticles with small concentration spread in base fluids such as water, oil and ethylene glycol. Nanofluid boiling is an important research area which provides many chances to explore new frontiers but also poses great challenges. Over the last decade, various studies have been carried out on pool boiling of nanofluids for the enhancement of critical heat flux which is otherwise limited by the use of base fluids. Several efforts have been made in the literature on nanofluid boiling, however, data on the boiling heat transfer coefficient and the critical heat flux have been unpredictable. Current study is a review of the status of research work on effects of nanofluids on heat transfer coefficient and critical heat flux. An emphasis is put in a review form on the recent progresses in nanofluid heat transfer coefficient and critical heat flux of pool boiling. This study also focuses on advancements in nanofluids, their properties and various parameters affecting boiling critical heat flux and heat transfer coefficient. At the end correlations used by different researchers to find out the critical heat flux and heat transfer coefficient are listed.

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“…Through these measurements, Kim et al concluded that capillarity and additional liquid held in the porous layer (which leads to an increase in the effective macrolayer thickness) are responsible to the CHF increase. In a similar study, Park et al [11] measured the CHF of water on a 0.49mm diameter horizontal wire on which Al 2 O 3 nanoparticle layers with different thicknesses and porosities were previously deposited by previous boiling in the nanofluid. Park et al observed that with the increase in the previous boiling time the CHF increases steeply for short previous boiling times, and after peaking gradually decreases with longer previous boiling times.…”

Section: Introductionmentioning

confidence: 99%

Pressure effect on CHF enhancement in pool boiling of nanofluids

Sakashita

2015

Journal of Nuclear Science and Technology

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This paper investigates critical heat flux (CHF) in saturated pool boiling for water and TiO 2 nanofluid on a 7 mm diameter vertical copper surface at pressures of 0.1 to 0.8 MPa.The nanofluid was prepared by dispersing 0.002 wt% TiO 2 nanoparticles in deionized water. The CHF of the nanofluid was enhanced about two times over that of water boiling at atmospheric pressure. With the increasing pressure, however, the CHF enhancement with the nanofluid decreases, and almost disappears at 0.8 MPa.

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Effects of thickness of boiling-induced nanoparticle deposition on the saturation of critical heat flux enhancement

Cited by 40 publications

References 18 publications

A comprehensive review on pool boiling of nanofluids

A comprehensive review on pool boiling of nanofluids

A comprehensive review on pool boiling heat transfer using nanofluids

Pressure effect on CHF enhancement in pool boiling of nanofluids

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