PPT Slide
Heat Transfer Processes in Capillary Porous Structures
Bare coarse surface improves heat transfer, as well as a mesh wick on a fine heater surface. A combination of both effects results in poor heat transfer.
- Influence of mesh size
- Fine mesh wicks improve heat transfer coefficient and DHF.
- Influence of number of layers
- Additional layers of mesh wicks increase the thermal resistance, but improve the wicking ability. DHF ?
- Influence of surface finish
- Coarse heater surface covered with a wick has detrimental effect on heat transfer coefficient and DHF.