Investigation of heat transfer characteristics of a two-phase closed thermosyphon
Abstract
An experimental study of the heat transfer mechanism of a two-phase closed thermosyphon is conducted in order to develop a mathematical model for predicting the heat transfer characteristics of the thermosyphon. The effects of the working fluid (water, ethanol, and Freon 113), the amount of the working fluid, the operating temperature, and the heat flux are determined, and the heat transfer coefficients at the condenser and evaporator are estimated. The mathematical model is found to accurately predict the heat transfer characteristics and the agreement with experimental results is good. It is shown that the overall thermal resistance of the thermosyphon is very sensitive to the operating pressure, the heat flux, and the quantity of the working fluid.
- Publication:
-
Advances in Heat Pipe Technology
- Pub Date:
- 1981
- Bibcode:
- 1981ahpt.proc...95S
- Keywords:
-
- Heat Transfer;
- Performance Tests;
- Thermosiphons;
- Two Phase Flow;
- Fluid Films;
- Heat Transfer Coefficients;
- Mathematical Models;
- Performance Prediction;
- Working Fluids;
- Fluid Mechanics and Heat Transfer