Approximate calculation and experiment of water pump shaft power based on loss analysis
Xi Sanzhong1,2, Zhang Tonglin1,2, Xiao Chongren2, Hou Yongsheng2, Gao Jiangyong2
1.Modern Agricultural Equipment Co.Ltd., Chinese Academy of Agricultural Mechanization Sciences, Beijing 100083, China; 2.State Key laboratory of Soil-Plant-Machine System Technique, Beijing 100083, China
Abstract：The loss analysis is one of the high precision methods for measurement of pump shaft power, and the procedures of measurement and data processing are very complex. Therefore, a discussion of an approximate calculation method was discussed in this paper. Based on theoretical derivation of loss analysis as well as the author′s many years′ experience in testing technology of water pumps,parts of the loss analysis process were simplified and simple measurement formulas were obtained. 3 submersible electric pumps with different power levels were randomly chosen to conduct a test in the national laboratory, and then the experimental results were compared with the theoretical calculation results. Comparison results show that the pump shaft power calculated by the approximate formula is very close to the result by loss analysis method; the average deviation between two methods for 3 pump shaft po-wer(actual output power of motor)is not more than 0.15%. The loss analysis can be used for the calculation of actual output power and efficiency of the pump motor for electric submersible pump in factory test, and the accuracy of this approximate calculation method is verified.
席三忠,, 张桐林,, 萧崇仁, 侯永胜, 高江永. 基于损耗分析法的水泵轴功率近似计算与试验[J]. 排灌机械工程学报, 2013, 31(12): 1030-1033.
Xi Sanzhong,, Zhang Tonglin,, Xiao Chongren, Hou Yongsheng, Gao Jiangyong. Approximate calculation and experiment of water pump shaft power based on loss analysis. Journal of Drainage and Irrigation Machinery Engin, 2013, 31(12): 1030-1033.
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