Abstract:
The performance of the many devices like super conducting magnets, motors and infrared detectors and
advanced electronic components greatly depends on the refrigerating system maintaining the required low
temperature. Even though there are many forms of cryocoolers like, GM, Stirling, Pulse tube refrigerator
etc, the pulse tube refrigerators are more attractive due to absence of moving parts at the low temperature
region. In the present work a numerical model using the method of characteristics is developed for a double stage
pulse tube. Here the total mass in a working cycle is divided in to a number of elements and the instantaneous
properties of temperature and pressure are calculated for each element with respect to time and distance along the
pulse tube. The specific refrigerating effect produced by each element and the total specific refrigerating effect is
calculated.
Author Name : Sajan Jerome
Keywords: Cryogenics, Pulse tube refrigeration, Double stage pulse tube.
Leave a Reply