“Investigation Variable Parameters In Cryocooler Design CFD Simulation Of Inline And Coaxial Pulse Tube Cryocoolers”

Abstract

Inline Pulse tube cryocoolers (PTC) is very compact and achieved cryogenics temperature without moving part. In view of design, a cold heat exchanger where is provide surface cooling is placed between regenerator and pule tube. Due to that it become necessary to use secondary heat exchange. Coaxial pulse tube cryocoolers (CPTC)is design remove secondary heat exchanger. Helium is taken as working fluid. The required phase lag between mass flow rate and temperature, temperature and density contour are observed. Some Frequency results for different size of regenerator and pule tube are discussed