| The thermoacoustic refrigerator driven by the magnetostrictive transducer takes advantage of thermoacoustic effect to obtain refrigeration. The refrigerator is easy to construct,reliable,long-life and friendly to environment。It is expected to be widely applied in aerospace,cryo-electronics,,superconductivity,cryobiology and so on。Firstly, the background and significance of the research of the thermoacoustic refrigerator are given. The history and the present state are summarized in brief。And the principle of the thermoacoustic refrigerator driven by the magnetostrictive transducer is also introduced for further discussion。Secondly,to improve the performance refrigerator, a new thermoacoustic refrigerator is designed. and built up。The acoustic driver consists of a magnetostrictive transducer attached to one end of gas filled resonance, stacks of parallel channels placed in proper position of the resonance, cold and hot heat exchangers. The magnetostrictive transducer keeps the frequency of the standing wave around the basic frequency. The gas experiences compression and expansion in the stack channels, and so the gas oscillation is formed. The heat is transferred between the oscillating gas and the surface of the stack and is pumped from the cold to the hot end. The hot and cold heat exchangers transfer heat between the refrigerator and the environment.Finally, important modification have been done on the previous refrigerator driven by the magnetostrictive transducer and We carried on primary experiments on this thermoacoustic refrigerator,With air at normal pressure as working fluid,a non-load temperature drop of 6 0 C has been obtained。The performance of the refrigerator is calculated by the ANSYS program. And the simulation results agree with the requirement of the design.
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