The heat transfer rate in the meniscus attachment region of a grooved heat pipe evaporator is studied theoretically. The analysis shows that the evaporation takes place mainly in the region where the liquid changes its shape sharply. However, comparisons with available heat transfer data indicate that the heat transfer rate in the meniscus varying region is substantially reduced probably due to groove wall surface roughness.
3rd International Heat Pipe Conference
- Pub Date:
- Heat Flux;
- Heat Pipes;
- Surface Roughness Effects;
- Fluid Mechanics and Heat Transfer