TWO FUNCTIONAL THERMAL DRIVING TRAVELING-WAVE THERMO-ACOUSTIC REFRIGERATION SYSTEM

摘要

The present invention discloses a heat-actuated double-acting traveling-wave thermoacoustic refrigeration system, comprising at least three elementary units, wherein each elementary unit comprises a thermoacoustic engine, a thermoacoustic refrigerator, and a resonance device; the thermoacoustic engine and the thermoacoustic refrigerator comprise a main heat exchanger, a heat regenerator, a non-normal-temperature heat exchanger, a thermal buffer tube, and an auxiliary heat exchange in sequence; the resonance device comprises a sealed housing in which it is equipped with a moving part being in a reciprocating motion, wherein the moving part separates the housing into at least two chambers; the main heat exchanger and auxiliary heat exchanger of each thermoacoustic engine and thermoacoustic refrigerator respectively connects to chambers of different housing, forming a dual-loop structure of gas medium flow. In heating the non-normal-temperature heat exchanger of the thermoacoustic engine to produce acoustic power, thermoacoustic energy conversion is induced inside the thermoacoustic engine and the thermoacoustic refrigerator. Therefore, it is possible to produce refrigeration effect with heat input solely. The system can be applied in areas with abundant thermal energy and absence of electricity, thus being capable of a more extensive range of application.