Speaker
Dr
Bo WANG
(Institute of Cryogenics and Electronics)
Description
The Stirling cryocooler works at 30K and 80K simultaneously with high efficiency, small mass, and long life is needed in the space VLBI system. To meet the requirement of the space VLBI system, the one-stage free-piston Stirling cryocooler providing two temperatures at 30K and 80K was proposed, simulation of the free-piston cryocooler and the linear motor was carried out, and regenerator material was compared and porosity was optimized. The simulation results shows that the free-piston Stirling cryocooler can provide the cooling power of 1W@80K and 0.2W@30K simultaneously, with the input power less than 100 W, and the mass less than 4 kg. The investigation provides a good way to solve the cooling problems of space systems.
Author
Dr
Bo WANG
(Institute of Cryogenics and Electronics)
