Study on a Pneumatically Driven Split Stirling Cryocooler Operating Above 100 Hz.

Higher operating frequency can improve power density in a cryocooler thereby can effectively reduce the volume and weight of the whole system while maintaining comparable efficiency. A pneumatically driven split-Stirling cryocooler operating above 100 Hz was designed, manufactured and tested. Effect of parameters on the performance was investigated using Sage. Experiments on the cold head were performed using a commercial linear compressor. The cryocooler achieved a no-load temperature of about 77 K with a cool down time to 80 K of 6.9 min at 105 Hz and 2.50 MPa, and the maximum net cooling power of 0.31 W was gained at 90.0 K at 105 Hz and 3.25 MPa. [ABSTRACT FROM AUTHOR]