An experimental investigation of the characteristics of explosive boiling of subcooled water on a hot surface under conditions of change of boiling modes

Zhilin, V. G.; Zeigarnik, Yu. A.; Ivochkin, Yu. P.; Oksman, A. A.; Belov, K. I.

doi:10.1134/s0018151x09060121

Cited by 17 publications

(4 citation statements)

References 2 publications

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“…The heating zone is separated from the liquid by thin metal diaphragm (5), (5), which protects the cooling medium against heat radiation. At the experiment beginning a metal sphere (tested sample) (1) is mounted inside the coil (2) by means of the lever-type displacement system (4). Heating is controlled by 5 type-K thermocouples placed inside the sphere.…”

Section: Experimental Facilitymentioning

confidence: 99%

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Pressure influence on film boiling of mixtures

Zabirov¹,

Yagov²,

Kanin³

et al. 2019

Proceedings of the 6th International Conference on Fluid Flow, Heat and Mass Transfer (FFHMT'19)

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A unique experimental work was carried out to study the laws governing the cooling of subcooled water-ethanol mixtures under pressures up to 0.5 MPa. The great intensification of quenching was recorded with increasing pressure and mass fraction of water in ethanol. At some conditions the transition temperature to the intensive boiling regime noticeably exceeded the critical temperature of the liquid (when direct liquid-solid contact is impossible).

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Section: Experimental Facilitymentioning

confidence: 99%

“…Despite the large number of experimental works, for example [3,4], the physical model explaining the nature and mechanisms of this phenomenon has not been proposed.…”

Section: Introductionmentioning

confidence: 99%

Pressure influence on film boiling of mixtures

Zabirov¹,

Yagov²,

Kanin³

et al. 2019

Proceedings of the 6th International Conference on Fluid Flow, Heat and Mass Transfer (FFHMT'19)

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“…Experiments in which electrical contact between subcooled water and a solid surface was recorded upon cooling high-temperature samples are discussed in [12]; these also indicate the presence of local surface contacts with a coolant. In particular, it is emphasized in [6] that the duration of electrical contacts increases near the Leidenfrost temperature. Thus, a general conclusion about the effect of thermophysical properties of the surface on the occurrence of the intensive cooling mode is beyond doubt; however, its specification and the acquisition of quantitative information requires new research.…”

Section: Heat and Mass Transfer And Physical Gasdynamicsmentioning

confidence: 99%

“…We carried out a systematic study of film boiling of the subcooled liquids for almost 10 years; similar studies are performed at the Joint Institute for High Temperatures, Russian Academy of Sciences (e.g., [6]). A…”

Section: Introductionmentioning

confidence: 99%

Effect of Coating by a Carbon Nanostructure on Heat Transfer with Unsteady Film Boiling

et al. 2019

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We present the results of an experimental study of heat transfer regimes during cooling in water of high-temperature, heated steel balls with a technically smooth and modified surface. The modification consisted of the application of a finely dispersed carbon coating to the surface followed by electron beam treatment. When the samples are placed in subcooled water, an intensive heat transfer regime occurs on the both samples; it appeared upon film boiling with heat fluxes on the surface up to 6 MW/m 2 . The heat flux values based on the initial cooling thermograms were obtained from a one-dimensional inverse heat conduction problem. The carboncoating leads to a decrease in the surface temperature, which corresponds to the transition to the intensive cooling mode, whereas the intensive cooling mode itself is identical for samples with the different surface treatments. Experimental results confirm the approximate model proposed for the conditions for the occurrence of the intensive cooling regime during film boiling of a subcooled liquid.

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