Abstract
Application of the method of layer-by-layer selective laser sintering of a metal powder for depositing capillary-porous coatings with a prescribed porosity onto heat-releasing surfaces is considered. Implementation of this method in experimental investigations of the boiling process on modified surfaces allows broad-range variations of the main parameters of microstructured capillary-porous coatings and other three-dimensional structures: material, porosity, amplitude (height), thickness of the residual layer and wavelength of capillary-porous coatings, and size and shape of three-dimensional ordered microtextures. It is demonstrated that the use of this technology can increase the heat transfer coefficient the case of boiling on the surface with a capillary-porous coating by several times as compared to the uncoated surface.
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Russian Text © The Author(s), 2019, published in Avtometriya, 2019, Vol. 55, No. 6, pp. 25–35.
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Bessmeltsev, V.P., Pavlenko, A.N. & Zhukov, V.I. Development of a Technology for Creating Structured Capillary-Porous Coatings by Means of 3D Printing for Intensification of Heat Transfer during Boiling. Optoelectron.Instrument.Proc. 55, 554–563 (2019). https://doi.org/10.3103/S8756699019060049
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DOI: https://doi.org/10.3103/S8756699019060049