Heat transfer enhancement at increasing water concentration in alcohol in the process of non-stationary film boiling

Kanin, Pavel K.; Ryazantsev, V. A.; Lexin, M. A.; Zabirov, A R; Yagov, V. V.

doi:10.1088/1742-6596/980/1/012029

Cited by 5 publications

(2 citation statements)

References 6 publications

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“…The value of the K 0 complex was presented in the concretized form at the recent conference [21], and it is shown that it actually enables us to find the conditions for the transition to the intensive heat transfer regime during film boiling of a subcooled liquid. The physical model is presented in detail in [22].…”

Section: Resultsmentioning

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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Section: Resultsmentioning

confidence: 99%

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

et al. 2019

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“…Vapor film collapse experiments usually use solid balls or heating tubes instead of melt to study the criteria of vapor film collapse [6,7]. e vapor film behavior under different experimental conditions was also widely studied, including the difference of the vapor film behavior between a moving ball and a stationary ball [8,9], the influence of shock wave on vapor film [10], and the influence of different solutions on vapor film [11][12][13][14]. e experiments of jet breakup are usually performed in an isothermal system to study the influence of hydrodynamics on the behavior of jet in FCI [15][16][17].…”

Section: Introductionmentioning

confidence: 99%

COMSOL Simulation for Design of Induction Heating System in VULCAN Facility

Min

Zhu

Yuan

et al. 2021

Science and Technology of Nuclear Installations

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The experimental facility VULCAN was setup to study the fuel-coolant interaction (FCI) phenomena in a postulated severe accident of light water reactors. The heating system is important for the facility to prepare molten material in a crucible. This article is concerned with the design of the heating system, which applies electromagnetic induction heating method. The COMSOL code was employed to simulate the induction heating characteristics of a graphite crucible under different current and frequency of the work coil (inductor). Given a frequency, the relationship between the crucible’s average temperature and the inductor’s current is obtained, which is instrumental to select the power supply of the induction heating system. Meanwhile, the skin effect of induction heating is analyzed to guide the choice of frequency and inductor of the heating system. According to the simulation results, the induction heating system of frequency 47 kHz is suitable for the experiment, with a good agreement in temperature between the measured and the predicted.

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