Linear Model of Flow Pattern for a Valved Three-Stage Pulse Tube Refrigeration

Abstract

This chapter proposes and applies a novel linear model of flow pattern analysis method for a three stage pulse tube refrigerator. Reasonable results have been obtained which is helpful for analyzing the relationship between phase shifts and improving the refrigeration performance of pulse tube refrigerator. The method is much easier and simpler for using than other analysis methods. Linear Model of Flow Pattern is a novel analysis method in pulse tube refrigeration. On the base of the enthalpy flow theory, the method focuses on the velocity of gas flow or the distribution of density wave in the pulse tube. Through analysis of the relationship between velocity of gas flow and pressure waves, the method discovers work state of the pulse tube refrigerator. This chapter illustrates that by applying Linear Model of Flow Pattern in a three-stage pulse tube refrigerator can obtain the phase relationship between velocity of gas flow and pressure waves of the refrigerator.