Optimization of regenerator of a stirling cryocooler

The applications like IR detector cooling in satellites, imaging cameras in battle tanks and HTS devices require cryogenic cooling in the range of 60–80 K with cooling power varying from mWto a few Watts. A miniature Stirling Cryocooler can be used for these applications. The regenerator is an important design component of Stirling cooler because the performance of the cooler largely depends on the effectiveness of the regeneratorused in the system. A parametric study has been carried out using REGEN 3.3 to optimize a regenerator operating with a warm end temperature of 300 K and cold end temperature of 80 K. The investigation was carried out for a frequency range of 40–70 Hz with mean pressure of 12 bar and pressure ratio of 2. The results obtained are useful for the complete design of Stirling Cryocooler.