Accession Number:

ADB205187

Title:

Low Capacity Reliquefier for Storage of Cryogenic Fluids.

Descriptive Note:

Final rept. Dec 89-Apr 93,

Corporate Author:

GENERAL PNEUMATICS CORP SCOTTSDALE AZ WESTERN RESEARCH CENTER

Personal Author(s):

Report Date:

1993-11-01

Pagination or Media Count:

135.0

Abstract:

The subject SBlR Phase II project addresses the tasks of generating cryocooling at 10 K and of reliquefying helium at a rate of 10 liters of liquid per day. The system designed is a combination of a four-stage Stirling cryocooler, a three-stage compressor, an anti-clogging Joule-Thomson cryostat, and a special drive mechanism which minimizes piston side forces and seal wear. A major task of the project was derivation of a multi-stage Stirling simulation computer program. The project resulted in the successful design, fabrication, and initial testing of a 10 K multi-stage Stirling cryocooler. The cryocooler employs an oil lubricated drive mechanism and rubbing piston seals to allow testing over the very low speeds necessary to reach 10 K, and a bolted structure to facilitate trouble-shooting and modification. As such, the machine is a versatile testbed for advancing multi-stage Stirling analysis, design, and regenerators technology, leading to higher efficiency, faster, smaller machines employing high reliability non-wearing drive mechanisms and seals. jg p.4

Subject Categories:

  • Inorganic Chemistry
  • Physical Chemistry
  • Fluid Mechanics
  • Thermodynamics

Distribution Statement:

APPROVED FOR PUBLIC RELEASE