The paper deals with the development of high-performance composite heat exchangers made of different metals. The samples made of meshes and fine fibers have been sintered to the copper base in the reduction atmosphere to prevent oxidation. The test of boiling heat transfer performance have been carried out under ambient pressure with distilled water and ethyl alcohol as working agents. The obtained data indicates significant enhancement of heat flux of such composite heat exchangers in comparison to the smooth surface without any coating. The maximum heat flux for the microstructure covered heater has been several times higher than for the smooth surface. The enhancement has been observed to decrease as the temperature difference become higher.
Nov 6, 2023
Oct 16, 2023
|Dąbek, Lidia, 2020, Composite heat exchangers for boiling heat transfer enhancement
|Nov 6, 2023
Orman, Łukasz J. Orman, Katarzyna Wojton, Iwona
Piecuch, Tadeusz Juraszka, Barbara Dąbek, Lidia