Heat transfer during the boiling of liquids in heat pipe wicks
Abstract
Data in the literature on heat transfer in the case of the nucleate boiling of various liquids in the wicks of heat pipes are reviewed. It is shown that none of the known analytical relationships can be used to generalize, with sufficient accuracy, the experimental data found in the literature. It is further shown that the exponent of the specific heat flux in the heat transfer law changes as a function of the liquid and wick properties. A relationship is obtained which generalizes experimental data for heat transfer agents of moderate temperatures (water, acetone, ethanol, and R-11 and R-113 coolants) and ammonia.
- Publication:
-
Promyshlennaia Teplotekhnika
- Pub Date:
- 1986
- Bibcode:
- 1986ProTe...8...11G
- Keywords:
-
- Convective Heat Transfer;
- Heat Pipes;
- Nucleate Boiling;
- Wicks;
- Heat Flux;
- Phase Transformations;
- Vapor Phases;
- Fluid Mechanics and Heat Transfer