A novel VM cycle refrigerator for air-conditioning temperature zone (>16℃) is introduced. It’s driven by pressure wave converted from heat which can be obtained by solar energy

industrial waste heat or fossil fuels. It has the advantages of compactness

low vibration and high reliability. The influences of volume ratio

void volume and phase difference of hot and cold displacers on theoretical cooling capacity had been studied. Also

five kinds of thermal losses were analyzed. Parameters of one VM cycle refrigerator were designed and the influences of charged pressure and frequency on actual cooling capacity and COP had been calculated. Moreover

the prospect of applications was discussed. The results show that a COP of 2.5～3 at 10 Hz can be obtained with a cooling capacity of 2000W. As to thermal losses

the losses in regenerators are dominant.