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The design of the pulse tube refrigerators has continually evolved since the invention of the main PTR [1] with the aim of improving their performance. Last modification of the design was the refrigerator with the inertance tube (IPTR), which established the necessary phasing between speed and pressure, Cha et al. [2] presented the results of numerical simulations in FLUENT, Ashwin et al. [3] used a thermal non-equilibrium model for the simulation of processes in cryocooler. Thus, the aim of the research was the estimation of applicability of parallel methods: thermodynamic and finite-difference simulation in an integrated approach for the design engineering methodology of the thermoacoustic pulse tube refrigerator.

Estimation of different numerical pulse tube thermoacoustic refrigerator models