Исследование процесса испарения водно-этанолового раствора на супергидрофильной капиллярно-пористой поверхности в условиях вынужденной конвекции

Abstract

In view of the continuous growth of global energy consumption, reduction of non-renewable energy sources, as well as increasing greenhouse gas emissions, it is necessary to introduce pro-mising methods to increase the importance of rational use of energy resources in the industrial, domestic and scientific and technical fields, which will reduce the amount of energy to provide the same level of energy supply of buildings or technological processes in production. This paper considers superhydrophilic capillary-porous surfaces capable of providing heat exchange through phase transition, which is of fundamental importance in evaporative radiators for space applications, heat pipes, as well as in the operation of cooling towers for electricity and heat production in centralized heat supply systems. The study of the heat exchange process with phase transition on the capillary-porous surface was carried out by conducting experiments on evaporation of water-ethanol mixture of different concentration under conditions of forced convection at diffe¬rent orientation of the modified surface in space. The results obtained in this work allow us to judge about the effectiveness of capillary-porous structures in heat exchangers operating on eva¬poration cycles and the Maisotsenko cycle, and are also applicable to further study of heat and mass transfer processes occurring on superhydrophilic capillary-porous surfaces.