Abstract
Concept of Lumped Mass Circular Traveling Wave Stirling System which was derived from thermoacoustic system and consists of lumped masses, springs (instead of resonance tube) and α-type Stirling System was introduced previously. And at the same time numerical simulation results have been reported. To prove practicability an experimental refrigerator system by that concept was composed and running test was started. In this report present state of the test and what have been known from that are shown.
