Design and research of the room temperature magnetic wine cabinet.

A novel permanent magnet composite magnetic refrigerator on room temperature which used the double sets of two concentric quadropole Halbach array magnet was designed. The refrigerant used Gd and GdEr alloy particles and was divided into four parts according to the curie temperature then filled into the regenerator with the quality of 1.5 kg. The magnetic refrigerator was applied on the wine cabinet with the cold room capacity of 92 l and the max cooling power was 147 W. The cooling capacity of the wine cabinet was measured. The results showed that the max temperature span could exceed 25 K and the lowest temperature at the cold end was lower than 267 K. The experiment results showed that the wine cabinet had met the requirement of cold storage and could be practical used preliminary.