Development of enhanced heat transfer/transport/storage slurries for thermal-system improvement
Abstract
Combined utilization of the phenomenon of increased energy transport due to the phase transition of an immiscible change of phase additive to a carrier fluid (slurry) with the recently recognized phenomenon of enhanced heat transfer at a surface due to particle/fluid boundary-layer interaction can be used to enhance overall thermal system performance. The enhancement will also be realized in conjunction with thermal systems employing direct contact heat exchangers. A benefit accruable from using phase change slurries in thermal systems rather than single phase sensible heat fluids are increased fluid/solid surface heat transfer coefficients resulting from several mechanisms. This reduces the temperature difference required for a given amount of heat transfer and allows reductions in heat transfer surface areas.
- Publication:
-
NASA STI/Recon Technical Report N
- Pub Date:
- June 1982
- Bibcode:
- 1982STIN...8312387K
- Keywords:
-
- Energy Storage;
- Heat Transfer;
- Phase Change Materials;
- Slurries;
- Thermal Energy;
- Flow Velocity;
- Mass Flow;
- Transport Properties;
- Fluid Mechanics and Heat Transfer