摘要
This paper describes the design principle and test results of a two-stage G-M refrigerator with lowest refrigerating temperature of 3.0K and cooling capacity of 0.5W and 4.3W at 4.2K and 10.0K respectively. The main points of the successful development of this prototype are following:1. Using ErNi2 as regenerator matrix in second stage.2. Properly designing the structure of 2-stage regenerator according to the results of the numerical calculation.3. Properly designing the structure of the heat exchanger in cold head after carefullyanalysizing it.
This paper describes the design principle and test results of a two-stage G-M refrigerator with lowest refrigerating temperature of 3.0K and cooling capacity of 0.5W and 4.3W at 4.2K and 10.0K respectively. The main points of the successful development of this prototype are following:1. Using ErNi2 as regenerator matrix in second stage.2. Properly designing the structure of 2-stage regenerator according to the results of the numerical calculation.3. Properly designing the structure of the heat exchanger in cold head after carefullyanalysizing it.
出处
《工程热物理学报》
EI
CAS
CSCD
北大核心
1997年第1期5-8,共4页
Journal of Engineering Thermophysics
关键词
制冷机
制冷量
磁性蓄冷材料
G-M refrigerator, cooling capacity, magnetic regenerator materials
