A Closed-Cycle Helium Refrigerator for 2.5 K

Journal Article · Mon Dec 31 23:00:00 EST 1962 · Advan. Cryog. Eng.

DOI:https://doi.org/10.1007/978-1-4757-0528-7_24· OSTI ID:4687045

Zeitz, K; Woolfenden, B K

The design features and operating characteristics of a helium closed- cycle refrigerator for producing 200 mw of refrigeration at 2.5 deg K are described. The basic unit was developed for maser cooling applications, but is very suitable for computer and cryogenic magnet applications. The unit has cooled down to 2.5 deg K in less than 3 hr and is designed to operate for up to 3 months without maintenance. Equipment needing maintenance can be replaced with plugin connections. The cryostat containing heat exchangers, expansion engines, and all gas controls weighs approximately 150 lb. The compressor package also weighs approximately 150 lb. (C.E.S.)

• Research Organization: Air Products and Chemicals, Inc., Allentown, Penna.
• Sponsoring Organization: USDOE
• NSA Number: NSA-17-028080
• OSTI ID: 4687045
• Journal Information: Advan. Cryog. Eng., Journal Name: Advan. Cryog. Eng. Vol. Vol: 8
• Country of Publication: Country unknown/Code not available
• Language: English

Related Subjects

COMPUTERS
COOLING
CRYOGENICS
EXPANSION
GASES
HEAT EXCHANGERS
HELIUM
LOW TEMPERATURE
MAGNETS
MASERS
OPERATION
PHYSICS
PLANNING
USES
WEIGHT