Effects of mechanical vibration on the heat and mass transfer process of absorption refrigerating system had been researched in this paper. A performance appraisal test bench was set up

thus an electrodynamics vibration generator was installed on the bottom of the absorption refrigerating machine to add vertical vibration into the system. Enhancement effects of vibration frequencies and amplitude on the heat and mass transfer process of absorption refrigerating machine were analyzed respectively. The results showed that when amplitude was constant

vibration frequencies had a strong effect on enhancement effect; and under the optimum spray volume and same vibration frequency

the enhancement effect of vibration would be reduced with too high or too low vibration amplitude. And in the range of test

frequency ranges for the best enhancement effect was 20-30 Hz

in these conditions

the enhancement effect of heat transfer could be 8%-20%

the enhancement effect of mass transfer could be 10%-25%

and cooling capacity increased by 12%-18%.