Conveners
C1Po1C - Stirling and VM Coolers
- Jennifer Marquardt (Ball)
- Ian McKinley (Jet Propulsion Laboratory)
Our research group has developed a kW-class Stirling cryocooler. The Stirling cryocooler adopts a ‘gamma-type’ configuration operated with a linear compressor. The cold-end of the Stirling cryocooler is equipped with a heat exchanger that can accept and eventually liquefy natural gas (NG). The liquefied natural gas (LNG) is stored in an auxiliary reservoir. In this research paper, the...
This paper describes the cooling performance test of a free piston Stirling cryocooler accompanied by a double acting linear compressor. Although, the aforementioned Stirling cryocooler had originally been subjected to 77 K applications, i.e. liquid nitrogen (LN2), in this research, we have tried to figure out the cooling performance of the Stirling cryocooler operating above-110 K temperature...
In this paper, a high efficiency and low vibration stirling cryocooler has been designed and manufactured. The high efficiency compressor implementing the technology of dual opposed moving magnet motor and flexure bearing has been optimized to drive pneumatically a stirling cold finger also implementing flexure bearing technology. Through theoretical study and experimental study, the...
The Vuilleumier (VM) cycler was first invented in 1908 and the Vuilleumier-type (VM-type) cryocooler has been developed over 100 years up to now. The VM-type cryocooler is driven by a thermal compressor and it inherits the advantage of compactness and high theoretical efficiency from the traditional Stirling-type cryocooler. It has been a current hotspot in regenerative mechanical cryocooler...
The double stage Vuilleumier type pulse tube cryocooler (VM-DPTC) is a novel kind of 4K-class pulse tube cryocooler driven by thermal compressor. Besides its compact size and low-frequency working pattern eliminating the moving parts in cryogenic temperature (<77K) will improve the working stability and reduce the inherited losses. To design a proper 4K double stage pulse tube cryocooler under...
