Abstract
The crisis of heat transfer in a FC-72 liquid film moving under the action of a gas flow along a smooth or micro-finned heater was experimentally investigated. It is shown that the use of micro-finning leads to an increase in the critical heat flux, since additional washing of the heated surface occurs due to the capillary effect.
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A. Bar-Cohen and P. Wang, On-chip hot spot remediation with miniaturized thermoelectric coolers, Microgravity Sci. and Technol., 2009, Vol. 21, Supp. 1, P. 351–359.
M. Kadoura and S. Chandra, Rupture of thin liquid films sprayed on solid surfaces, Experiments in Fluids, 2013, Vol. 54, Iss. 2, P. 1465–1–1465–11.
M.S. El-Genk and H.H. Saber, An investigation of the breakup of an evaporating liquid film, falling down a vertical, uniformly heated wall, J. Heat Transfer, 2002, Vol. 124, Iss. 1, P. 39–50.
V.S. Ajaev, E.Ya. Gatapova, and O.A. Kabov, Stability and break-up of thin liquid films on patterned and structured surfaces, Advances in Colloid and Interface Sci., 2016, Vol. 228, P. 92–104.
D.V. Zaitsev and O.A. Kabov, An experimental modelling of gravity effect on rupture of a locally heated liquid film, Microgravity Science and Technology, 2007, Vol. 19, No. 3/4, P. 174–177.
J.K. Kim, C.W. Park, and Y.T. Kang, The effect of micro-scale surface treatment on heat and mass transfer performance for a falling film H2O/LiBr absorber, Int. J. Refrigeration, 2003, Vol. 26, Iss. 5, P. 575–585.
N. Tiwari, J.M. Davis, Stabilization of thin liquid films flowing over locally heated surfaces via substrate topography, Physics Fluids, 2010, Vol. 22, Iss. 4, P. 042106–1–042106–12.
D.V. Zaitsev, M. Lozano Aviles, H. Auracher, and O.A. Kabov, Rupture of a subcooled liquid film falling down a heated grooved surface, Microgravity Sci. and Technology, 2007, Vol. 19, Iss. 3, P. 71–74.
N.I. Pecherkin, A.N. Pavlenko, and O.A. Volodin, Heat transfer at evaporation of falling films of Freon mixture on the smooth and structured surfaces, Thermophysics and Aeromechanics, 2011, Vol. 18, No. 4, P. 579–589.
I.I. Gogonin, Heat exchange at vaporization and boiling of film spraying horizontal pipe bundle, Theor. Found. Chem. Engng, 2014, Vol. 48, No.1, P. 96–103.
D.V. Zaitsev, D.A. Rodionov, and O.A. Kabov, Critical heat flux in a locally heated liquid film driven by gas flow in a minichannel, Tech. Phys. Letters, 2009, Vol. 35, Iss. 7, P. 680–682.
F. Houshmand and Y. Peles, Heat transfer enhancement with liquid-gas flow in microchannels and the effect of thermal boundary layer, Int. J. Heat Mass Transfer, 2014. Vol. 70. P. 725–733.
T. Hirokawa, H. Ohta, and O.A. Kabov, Experimental investigation on behaviors and heat transfer in shear-driven liquid film flow, Interfacial Phenomena and Heat Transfer, 2015, Vol. 3, Iss. 3, P. 303–317.
Yu.O. Kabova, V.V. Kuznetsov, and O.A. Kabov, Gravity effect on the locally heated liquid film driven by gas flow in an inclined minichannels, Microgravity Sci. and Technol., 2008. Vol. 20, Iss. 3, P. 187–192.
D.A. Reay, P.A. Kew, and R.J. McGlen, Heat Pipes, 6th ed., Butterworth-Heinemann, Oxford, 2014.
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The contact angle of the substrate was measured in the framework of the state contract to IT SB RAS, the study of the heat transfer crisis on the micro-finned heater was supported by the Russian Science Foundation (Agreement No. 18-79-10258).
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Cheverda, V.V., Kabov, O.A. Crisis of heat transfer on a micro-finned heater with gas-driven FC-72 film flow in a mini-channel. Thermophys. Aeromech. 26, 461–464 (2019). https://doi.org/10.1134/S0869864319030144
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DOI: https://doi.org/10.1134/S0869864319030144