Space cryogenics components based on the thermomechanical (TM) effect
Abstract
He II vapor-liquid phase separation (VLPS) is discussed, with emphasis on fluid-related transport phenomena. The VLPS system has been studied for both linear and nonlinear regimes, demonstrating that well-defined convection patterns exist in porous plug phase separators. In the second part, other components based on the thermomechanical effect are discussed in the limit of ideal conditions. Examples considered include the heat pipe transfer of zero net mass flow, liquid transfer pumps based on the fountain effect, mechanocaloric devices for cooling purposes, and He II vortex refrigerators.
- Publication:
-
26th AIAA Aerospace Sciences Meeting
- Pub Date:
- January 1988
- Bibcode:
- 1988aiaa.meetR....Y
- Keywords:
-
- Cryogenics;
- Liquid Phases;
- Separators;
- Spacecraft Radiators;
- Vapor Phases;
- Cooling;
- Helium;
- Housekeeping (Spacecraft);
- Phase Separation (Materials);
- Pumps;
- Refrigerators;
- Engineering (General)