Phasor analysis of GM-type double Inlet pulse tube refrigerator

Abstract

The simplicity and varied application of a pulse tube refrigerator has always gained the attention of many scientist and researchers towards itself. It is because of this very reason that various different types of pulse tube refrigerator has come up with time. A GM type double inlet pulse tube refrigerator (DIPTR) is one of the many configuration of the pulse tube that has come up with time. Although the configuration of a DIPTR seems to be quite simple but its working principle is a bit complicated. The aim of the present work is to study the working principle behind a DIPTR and develop a MATLAB code for the same and use it further to draw a phasor for the governing equation, so as to validate the output of the code developed. The MATLAB code and the phasor developed in this work is then used to develop a simplified design method for determining the dimension of the pulse tube of a DIPTR.