Cooling and freezing processes of water with a supercooled region in the double horizontal concentric cylinders.

Narumi, Akira; Kashiwagi, Takao; Sakatoku, Yuuji

doi:10.1299/kikaib.56.2077

Cited by 7 publications

(2 citation statements)

References 0 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The cooling condition to stop up a water tube because of freezing was studied experimentally and numerically to prevent freezing of water in a water tube [3,4]. There were also experimental and numerical studies on the freezing phenomenon of water with a supercooled region in a horizontal concentric cylinder from a heat transfer point of view [6,7]. There were also experimental and numerical studies on the freezing phenomenon of water with a supercooled region in a horizontal concentric cylinder from a heat transfer point of view [6,7].…”

Section: Introductionmentioning

confidence: 99%

Numerical Study on Cooling Phenomenon of Water With Supercooled Region in a Horizontal Circular Cylinder

Yoon¹

2000

Numerical Heat Transfer, Part A: Applications

View full text Add to dashboard Cite

Ice formation in a horizontal circular has been studied numerically. From the numerical analysis results, it was found that there were three types of freezing pat terns and that the freezing phenomenon was affect ed largely by densit y inversion and cooling rate. The type of freezing patt ern largely depends on the secondary ow, which is generat ed by density inversion. W hen supercooling energy is released before the development of the secondary ow, an annular ice layer grows. If the energy is released when the secondary ow is considerably developed and the supercooled region is removed to the upper half part of the cylinder, an asymmet ric ice layer grows. If the energy is released after perfect development of the secondary ow, instantaneous dendritic ice format ion over the full region occurs. Furthermore, the secondary ow was found to have an effect on heat transfer charact erist ics. The heat transfer rate becomes small at the instant when the secondary ow is generated, but it becomes large with the development of the secondary ow. It is concluded that for the facilitation of heat transfer it is desirable to keep wat er, in its liquid phase until the secondary ow is perfectly developed. This study gives an instruction on the performance improvement of a capsule-type ice storage tank.

show abstract

Section: Introductionmentioning

confidence: 99%

Numerical Study on Cooling Phenomenon of Water With Supercooled Region in a Horizontal Circular Cylinder

Yoon¹

2000

Numerical Heat Transfer, Part A: Applications

View full text Add to dashboard Cite

show abstract

“…The effect on the solidification of water in an annular space was examined in Ref. [9]. To the authors' knowledge, no studies have been reported on the effect of the density inversion on transient cooling of water around a cylinder in a rectangular cavity, in spite of the fact that it is very important for practical applications of storage systems.…”

Section: Introductionmentioning

confidence: 99%

Effect of Density Inversion on Cooling of Water Around a Cylinder in a Rectangular Cavity

Sasaguchi¹,

Kusano²,

Kitagawa³

et al. 1997

Numerical Heat Transfer, Part A: Applications

View full text Add to dashboard Cite

Transien: natural eonoeaion in WtlUT around a cooted horizonlat cylinder pltJced at the ctnltr ofa rectangular endosure luis been studhd. TIuIgoverning equations were solved by a finite dilferem:t method, and the flow strru:ture and temperatun distribuJiDns hove been predicted. TIuI purpose of the prestnl study was to examine the effects of the density inversion and the inUial temperature of WtlUT on the cooling process. TIuI iniIial Waltr temperature wasvamd at 4, 6, 8, and J2°C, while the temperature of the cylinder sruface wasji:ud at O°c. TIuI timewise varintions of the temperatun field and the velocity field as wen as the mean and local Nusst!/t numbers on the cytinder surfact were compared. Change in the iniJiaJ water temperature largely affects fluid flows due to the dmsity inversion of waur. CompliJ:atedfWw patterns are observedfor iniIial waur temptrature higher than 4"c.Cooling of WtlUT is most effective for an iniJiaJ wattr temperature of l2OC.

show abstract

Temperature visualizations by use of liquid crystals of unsteady natural convection during supercooling and freezing of water in an enclosure with lateral cooling

Nishimura

Masaki

Namiko

et al. 1991

International Journal of Heat and Mass Transfer

View full text Add to dashboard Cite

Cooling and freezing processes of water with a supercooled region in the double horizontal concentric cylinders.

Cited by 7 publications

References 0 publications

Numerical Study on Cooling Phenomenon of Water With Supercooled Region in a Horizontal Circular Cylinder

Numerical Study on Cooling Phenomenon of Water With Supercooled Region in a Horizontal Circular Cylinder

Effect of Density Inversion on Cooling of Water Around a Cylinder in a Rectangular Cavity

Temperature visualizations by use of liquid crystals of unsteady natural convection during supercooling and freezing of water in an enclosure with lateral cooling

Contact Info

Product

Resources

About