The effect of surface wettability and pressure on multiscale heat transfer characteristics at liquid boiling was studied. The experiments were carried out at saturated water boiling on surfaces with different wettability in the pressure range of 8.8–103 kPa. The usage of transparent ITO film heater deposited on a sapphire substrate and high-speed visualization showed the nucleation site density to reduce with decreasing pressure and to significantly increase on heaters with hydrophobic fluoropolymer coatings. The results on the vapor bubble growth rate, bubble emission frequency, and evolution of the triple contact line at spreading of dry spots are also analyzed in detail. In particular, the rate of dry spot growth on a hydrophilic surface was shown to have a non-monotonic dependence with the lower extremum at pressures in the range of 22–42 kPa depending on the heat flux. The usage of high-speed infrared thermography enabled measurement of the temperature field of the heating surface and determination of the heat transfer rate at boiling depending on the pressure and surface wettability. The heat transfer was shown to decrease with the pressure at boiling on hydrophilic heaters, whereas it can be significantly enhanced due to a hydrophobic coating at atmospheric pressure in the range of low heat fluxes.
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Mamontova, N.N., Boiling of Certain Liquids at Reduced Pressures, J. Appl. Mech. Tech. Phys., 1966, vol. 7, no. 3, pp. 94–98.
Yagov, V.V., Gorodov, A.K., and Labuntsov, D.A., Experimental Study of Heat Transfer in the Boiling of Liquids at Low Pressures under Conditions of Free Motion, J. Eng. Phys., 1970, vol. 18, no. 4, pp. 421–425.
Van Stralen, S.J.D., Cole, R., Sluyter, W.M., and Sohal, M.S., Bubble Growth Rates in Nucleate Boiling of Water at Subatmospheric Pressures, Int. J. Heat Mass Transfer, 1975, vol. 18, no. 5, pp. 655–669.
Gao, W., Qi, J., Yang, X., Zhang, J., and Wu, D., Experimental Investigation on Bubble Departure Diameter in Pool Boiling under Sub-Atmospheric Pressure, Int. J. Heat Mass Transfer, 2019, vol. 134, pp. 933–947.
Michaie, S., Rullière, R., and Bonjour, J., Experimental Study of Bubble Dynamics of Isolated Bubbles in Water Pool Boiling at Subatmospheric Pessures, Exp. Therm. Fluid Sci., 2017, vol. 87, pp. 117–128.
Samokhin, G.I. and Yagov, V.V., Heat Transfer and Critical Thermal Loads under Liquid Boiling in the Range of Low Reduced Pressures, Teploehnergetika, 1988, pp. 72–74.
Betz, A.R., Jenkins, J., and Attinger, D., Boiling Heat Transfer on Superhydrophilic, Superhydrophobic, and Superbiphilic Surfaces, Int. J. Heat Mass Transfer, 2013, vol. 57, no. 2, pp. 733–741.
Kim, J.S., Girard, A., Jun, S., Lee, J., and You, S. M., Effect of Surface Roughness on Pool Boiling Heat Transfer of Water on Hydrophobic Surfaces, Int. J. Heat Mass Transfer, 2018, vol. 118, pp. 802–811.
Teodori, E., Valente, T., Malavasi, I., Moita, A.S., Marengo, M., and Moreira, A.L.N., Effect of Extreme Wetting Scenarios on Pool Boiling Conditions, Appl. Therm. Eng., 2017, vol. 115, pp. 1424–1437.
Jung, S. and Kim, H., An Experimental Study on Heat Transfer Mechanisms in the Microlayer Using Integrated Total Reflection, Laser Interferometry and Infrared Thermometry Technique, Heat Transf. Eng., 2015, vol. 36, no. 12, pp. 1002–1012.
Petkovsek, J., Heng, Y., Zupancic, M., Gjerkes, H., Cimerman, F., and Golobic, I., IR Thermographic Investigation of Nucleate Pool Boiling at High Heat Flux, Int. J. Refrig., 2016, vol. 61, pp. 127–139.
Surtaev, A., Serdyukov, V., Zhou, J., Pavlenko, A., and Tumanov, V., An Experimental Study of Vapor Bubbles Dynamics at Water and Ethanol Pool Boiling at Low and High Heat Fluxes, Int. J. Heat Mass Transfer, 2018, vol. 126, pp. 297–311.
Surtaev, A., Serdyukov, V., and Malakhov, I., Effect of Subatmospheric Pressures on Heat Transfer, Vapor Bubbles and Dry Spots Evolution during Water Boiling, Exp. Therm. Fluid Sci., 2020, vol. 112, 109974.
Safonov, A.I., Sulyaeva, V.S., Bogoslovtseva, A.L., and Timoshenko, N.I., Influence of Precursor Gas Flow Rate on Fluoropolymer Coating Growth Rate During Hot Wire Chemical Vapor Deposition, J. Appl. Mech. Tech. Phys., 2018, vol. 59, no. 5, pp. 842–846.
Gatapova, E.Y., Shonina, A.M., Safonov, A.I., Sulyaeva, V.S., and Kabov, O.A., Evaporation Dynamics of a Sessile Droplet on Glass Surfaces with Fluoropolymer Coatings: Focusing on the Final Stage of Thin Droplet Evaporation, Soft Matter, 2018, vol. 14, no. 10, pp. 1811–1821.
Kwark, S.M., Amaya, M., Kumar, R., Moreno, G., and You, S.M., Effects of Pressure, Orientation, and Heater Size on Pool Boiling of Water with Nanocoated Heaters, Int. J. Heat Mass Transfer, 2010, vol. 53, nos. 23/24, pp. 5199–5208.
Serdyukov, V.S., Malakhov, I.P., and Surtaev, A.S., High-Speed Visualization and Image Processing of Sub-Atmospheric Water Boiling on a Transparent Heater, J. Visual., 2020; https://doi.org/10.1007/s12650-020-00660-z.
Yagov, V.V., On the Limiting Law of Growth of Vapor Bubbles in the Region of Very Low Pressures (High Jakob Numbers), High Temp., 1988, vol. 26, no. 8.2, pp. 251–257.
Surtaev, A.S., Serdyukov, V.S., and Safonov, A.I., Enhancement of Boiling Heat Transfer on Hydrophobic Fluoropolymer Coatings, Interf. Phen. Heat Transfer, 2018, vol. 6, no. 3, pp. 269–276.
Nam, Y., Wu, J., Warrier, G., and Ju, Y., Experimental and Numerical Study of Single Bubble Dynamics on a Hydrophobic Surface, J. Heat Transfer, 2009, vol. 131, no. 12, pp. 121004-1–121004-7.
Li, Y., Zhang, K., Lu, M., and Duan, C., Single Bubble Dynamics on Superheated Superhydrophobic Surfaces, Int. J. Heat Mass Transfer, 2016, vol. 99, pp. 521–531.
The authors greatly thank Dr. A.I. Safonov for preparing the fluoropolymer hydrophobic coatings for the experiments described in the article.
The work was supported by the Russian Science Foundation (project no. 18-79-00078). The high-speed visualization was carried out within the framework of the Program of Fundamental Scientific Research of the Russian Academy of Sciences for 2013–2020 (theme III.18.2.3, reg. no. AAAA-17-117030310025-3).
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Surtaev, A.S., Serdyukov, V.S. & Malakhov, I.P. Features of Boiling Heat Transfer at Various Pressures on Hydrophilic/Hydrophobic Surfaces. J. Engin. Thermophys. 29, 582–591 (2020). https://doi.org/10.1134/S1810232820040062