Perspectives and problematic issues in the development of heat transfer enhancement methods at boiling and evaporation

Abstract

The paper presents an analysis of modern methods of heat transfer intensification and critical heat flux increase during boiling and evaporation using micro-nanostructuring of surface. Special attention is paid to the analysis of such promising methods of modifying heat-transfer surfaces as the application of combined microstructured surfaces/coatings by SLM/SLS (3-D printing), the organization of structures with contrast wettability on the micro-scale. The conclusions formulated on the basis of generalization of results of complex research on studying of heat transfer, transitional and crisis phenomena at boiling in the conditions of free convection, at evaporation and boiling in flowing down films and in thin horizontal layers of liquids at use of various types of microstructuring of heat- transfer surfaces are presented.