Heat transfer in an organic heat pipe
Abstract
An experimental study of heat transfer characteristics in a cylindrical gravity assisted heat pipe with an organic working fluid is described. External coolant heat transfer coefficient is given for a temperature range from 25 to 45 C and for radial heat fluxes from around .065 to 1.0 W/sq cm. Observations on the condensate flow were carried out and provisions were made to ensure that no instationary condensate flow occurred which may lead to uncertainties in heat transfer characteristics. Almost complete wetting of the evaporator heat transfer area could be confirmed.
- Publication:
-
NASA STI/Recon Technical Report N
- Pub Date:
- June 1987
- Bibcode:
- 1987STIN...8722946H
- Keywords:
-
- Entropy;
- Heat Pipes;
- Heat Transfer Coefficients;
- Radiative Heat Transfer;
- Working Fluids;
- Condensates;
- Fluid Flow;
- Gravitational Effects;
- Heat Flux;
- Heat Of Vaporization;
- Organic Coolants;
- Wetting;
- Fluid Mechanics and Heat Transfer