Abstract
This paper deals with investigation results on crisis phenomena for nonstationary heat release under the conditions of free convection and in falling liquid films. It is shown that the character of the crisis development and the critical heat flux for nonstationary heat release significantly depend on the characteristics determining the temperature head of liquid boiling-up. According to experimental data with an arbitrary temporal function of heating, the character of the dependence between the critical heat flux and the heat release increasing rate is significantly effected by ready nucleation sites. It is found that a change in the nonstationary critical heat flux in the range of high times between impulses for periodic heat release is connected with deactivation of ready nucleation sites on the heat-releasing surface.
According to new experimental results, in the studied range of irrigation degree alteration (Rein = 30–1660), parameters characterizing decay of the falling liquid film with stepped heat release (the distribution of the time of boiling-up expectation along the liquid film, the velocities of movable boundaries in the boiling-up and drying fronts, the intensity of liquid ejection from the heat-releasing surface) complexly depend on the Reynolds number, wave characteristics, and heat flux density.
Similar content being viewed by others
References
Hewitt, G.F., Shires, G.L., and Bott, T.R., Process Heat Transfer, Begell House, 1994.
Handbook of Phase Change: Boiling and Condensation, Kandlikar, S.C., Ed., London: Taylor and Francis, 1999.
Multiphase Flow Handbook, Crowe, C.T., Ed., CRC Press: Taylor and Francis, 2006.
Skripov, V.P., Teplo i massoperedacha (Heat and Mass Transfer), Minsk: Izd. AN BSSR, 1962, vol. 2.
Skripov, V.P., Physics, Sverdlovsk: Ural Polytechnic Institute, 1962, vol. 123, p. 50.
Nikolaev, G.P., Skripov, V.P., and Budin, Ye.N., Proizvodstvo kotlov i turbin (Production of Boilers and Turbines), Leningrad: Izd. TsKTI, 1965.
Skripov, V.P., Metastabil’naya zhidkost’ (Metastable Liquid), Moscow: Nauka, 1972.
Skripov, V.P., Sinitsin E.N., Pavlov, P.A., et al., Termofizicheskie svoistva zhidkostei v metastabil’nom sostoyanii (Thermophysical Properties of Liquids in a Metastable State), Moscow: Atomizdat, 1980.
Kolmogorov, A.I., Izv. AN SSSR, Ser. Mat., 1937, no. 3, p. 355.
Pavlenko, A.N. and Chekhovich, V.Yu., Critical Heat Flux at Transient Heat Generation, Izv. Sib. Otd. Akad. Nauk SSSR, Ser. Tekhn. Nauk, 1990, vol. 2, pp. 3–9.
Pavlenko, A.N., Transient Critical Heat Flux in Liquid at Different Fixing Laws of Heat Generation, Izv. Sib. Otd. Akad. Nauk SSSR, Ser. Tekhn. Nauk, 1990, vol. 2, pp. 131–137.
Pavlenko, A.N., Transitional Processes at Boiling at Evaporating, Dr. Sci. (Phys.-Math.) Dissertation, Novosibirsk.
Borishanskii, V.M. and Fokin, B.S., Onset of Heat-Transfer Crisis with Unsteady Increase in Heat Flux, Heat Transfer. Soviet Res., 1969, vol. 1, no. 5, pp. 1–55.
Yakovlev, I.V., Experimental Study of the Process of the Transient Heat Transfer of Helium on the Surface of a Horizontal Heater in Large Volume and in an Annular Channel at Free Motion and the Development of Calculation Recommendations, Dr. Sci. (Phys.-Math.) Dissertation, Moscow: Moscow: Institute of Power Engineering, 1985.
Grigoriev, V.A., Pavlov, Yu.M., and Yakovlev, I.V., Non-stationary Helium Heat Transfer, Cryogenics, 1985, vol. 25, no. 2, pp. 81–86.
Babich, V.I., Development of the Methods for Calculation of Nonstationary Heat Transfer at Free Calculation of Helium in Channels, Dr. Sci. (Phys.-Math.) Dissertation, Moscow: Moscow, 1985.
Avksentyuk, B.P. and Ovchinnikov, V.V., A Study of a Transient Critical Heat Flux to the Water on the Surface Depleted of Nucleation Sites, Proc. of 4th World Conf. on Experimental Heat Transfer, Fluid Mechanics and Thermodynamics, Brussels, 1997, vol. 2, pp. 615–620.
Avksentyuk, B.P. and Ovchinnikov, V.B., Investigation of the Third Crisis of Heat Transfer at Nonstationary Heat Release, Tr. 3-i Vseross. konf. po teploperedache (Proc. 3rd National Conf. on Heat Transfer), Moscow: Moscow Inst. Power Eng., 2002, vol. 4, pp. 33–36.
Baidakov, V.G., Pregrev kriogennykh zhidkostei (Superheating of Cryogenic Liquids), Yekaterinburg: Izd. Ur. Otd. Ross. Akad. Nauk, 1995.
Pavlenko, A.N., Surtaev, A.S., and Matsekh, A.M., Transitional Processes in Falling Liquid Films at Nonstationary Heat Release, High Temperature, 2007, vol. 45, no. 4.
Pavlenko, A.N., Matsetkh, A.M., and Surtaev, A.S., Local Heat Transfer and Transitional Processes at Different Laws of Heat Release in Liquid Falling Wave Films, Tr. 4-i Vseross. konf. po teploperedache (Proc. 4th National Conf. on Heat Transfer), Moscow: Moscow Inst. Power Eng., 2006, pp. 175–178.
Pavlenko, A.N. and Lel’, V.V., Heat Transfer and Crisis Phenomena in Falling Films of Cryogenic Liquid, Russ. J. Eng. Therm., 1997, nos. 3–4, vol. 7, pp. 177–210.
Pavlenko, A.N., Lel’, V.V., Serov, A.F., Nazarov, A.D., and Matsekh, A.M., Wave Amplitude Growth and Heat Transfer in Falling Intensively Evaporating Liquid Film, J. Eng. Therm., 2002, vol. 11, no. 1, pp. 7–43.
Pavlenko, A.N., Matsekh, A.M., Pecherkin, N.I., Kneer, R., Lel’, V.V., and Surtaev, A.S., Heat Transfer and Crisis Phenomena with Intense Evaporation in the Falling Wave Liquid Films, Thermophysics and Aeromechanics, 2006, vol. 13, no. 1, pp. 85–96.
Pavlenko, A.N. and Lel’, V.V., Approximate Simulation Model of a Self-Sustaining Evaporation Front, Thermophysics and Aeromechanics, 1999, vol. 6, no. 1, pp. 105–117.
Skokov, V.N., Koverda, V.P., Reshetnikov, V.P., and Vinogradov, A.V., Critical Behavior on Liquid Cavitation in the Ultrasonic Field, Tr. 4-i Vseross. konf. po teploperedache (Proc. 4th National Conf. on Heat Transfer), Moscow: Moscow Inst. Power Eng., 2006, pp. 212–215.
Author information
Authors and Affiliations
Corresponding author
Additional information
The text was submitted by the authors in English.
Rights and permissions
About this article
Cite this article
Pavlenko, A.N., Chekhovich, V.Y. Interconnection between dynamics of liquid boiling-up and heat transfer crisis for nonstationary heat release. J. Engin. Thermophys. 16, 175–187 (2007). https://doi.org/10.1134/S1810232807030101
Issue Date:
DOI: https://doi.org/10.1134/S1810232807030101