Intensification of heat exchange during chladones condensation and their composites inwardly pipes and channels including mini- and microchannels

Experimental research of heat exchange is conducted during condensation of water, chladone of R-141b and mixtures of chladones of R-22 and R-407С in a horizontal pipe with the passive intensifiers of heat exchange – wire rings and wire longitudinal scope at the circular, расслоенном and asymmetric flow of phases. The field of temperatures is measured in the vertical section of the thick-walled test area, passing through circular intensifiers.

Research and Development on High Performance Solar Water Heating Plant of the New Kind and Containing Heat Pipes as a Core

Autonomous storage plant of the new kind for domestic water heating by means of solar energy is the object of the development, and solar thermal collector of the new kind, which contains high-performance heat transfer devices – heat pipes as a core, is the subject of the development. For the first time in Ukraine operating mock-up of the plant, which functions without electric power consumption, has been manufactured; its working thermal efficiency value is within 0.5 – 0.65, and maximal obtainable temperature value of the heated water is 65 C deg.