Experimental Study On Lifting Characteristic Of Single Stage Lithium Bromide Bubble Pump

Energy conservation and environment protection are the two issues that are con-cerned by the international community at present. Lithium bromide absorption system is not only can use solar, industrial waste heat and other low grade energy, but it's also friendly to the environment. For these advantages, it is paid much attention by people. In this paper, in order to improve the utilization of energy, bubble pump is used to re-place the traditional mechanical solution pump, and a lot of experimental research and theoretical analysis about bubble pump are conducted.The main work can be described as follow.(1) Based on the theoretical knowledge of bubble pump, test platform is designed and built.(2) The effects of tube diameter,heat and driving head on performance of bubble pump is investigated experimentally.(3) Study on the different performance of bubble pump is conducted when using water and different concentration of lithium bromide solution. The result shows that as tube diameter is constant, the optimum driving head is different for the different working medium, while as working medium is same, the optimum driving head is different for the different tube diameter. When solution concentration is great (>54%), the pumping capacity of bubble pump with 12mm tube diameter is the best.(4) The performance of bubble pump is calculated theoretically, and compared with experimental data.