In order to grasp the influence parameters of bubble pump performance more accurately and improve the performance of Einstein refrigeration

the theoretical model and experiment on bubble pump were carried out with water as the working fluid at atmospheric pressure by using different lift height under the same immersion ratio. According to the theoretical and experimental results

it is found that under the condition of the other factors unchanged

the theoretical and experimental results have the same trend; the amount of the lifted liquid is inversely proportional to the lift height

the lifting capacity difference can reach to 0.82g/s; the lift height is proportional to the lifting efficiency

and the maximum lifting efficiency difference can reach to 10.16%

which has a important effect on the whole refrigeration system.