Refrigerator module, system and process

Technical Report · Mon Jun 01 04:00:00 EDT 1981

OSTI ID:5411667

Brooks, W F; Kittel, P

A hermetically sealed, valve-free assembly containing helium 3 or other refrigerant is used in a refrigerator module including a refrigerant evaporator, a refrigerant condenser, and a refrigerant adsorption pump serially connected but thermally isolated, so that the refrigerant may pass from one element to another. A heater is provided for the adsorption pump. During operation, the adsorbing unit is heated to drive adsorbed refrigerant vapor to the condenser. Refrigeration occurs when the refrigerant is evaporated in the evaporator and simultaneously adsorbed in the adsorbing unit to decrease refrigerant vapor pressure. When connected to the cold plate of a helium 4 or other refrigerant cryostat, the resulting multistage refrigeration system gives improved and simplified operation in practice.

• Research Organization: National Aeronautics and Space Administration, Moffett Field, CA (USA). Ames Research Center
• OSTI ID: 5411667
• Report Number(s): NASA-CASE-ARC-11263-1
• Country of Publication: United States
• Language: English

Related Subjects

420201* -- Engineering-- Cryogenic Equipment & Devices
71 CLASSICAL AND QUANTUM MECHANICS
GENERAL PHYSICS
CONDENSERS
EVAPORATORS
EVEN-ODD NUCLEI
FLUIDS
HELIUM 3
HELIUM DILUTION REFRIGERATORS
HELIUM ISOTOPES
ISOTOPES
LIGHT NUCLEI
NUCLEI
OPERATION
PUMPS
REFRIGERANTS
REFRIGERATORS
STABLE ISOTOPES
WORKING FLUIDS