排灌机械工程学报
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Journal of Drainage and Irrigation Machinery Engin  2012, Vol. 30 Issue (1): 20-24    DOI: 10.3969/j.issn.1674-8530.2012.01.005
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Optimization method for hydraulic performance of centrifugal pump at multi operation points
WANG Kai, LIU Hou-Lin, YUAN Shou-Qi, WU Xian-Fang, WANG Yong
(Research Center of Fluid Machinery Engineering and Technology, Jiangsu University, Zhenjiang, Jiangsu 212013, China)
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Abstract An optimization method for the hydraulic design of centrifugal pumps at multioperation points was proposed by means of a global optimization algorithm and a computational model for estimating hydraulic losses and energy performance of centrifugal pumps.In the method,the values of several key geometric parameters in an original design were used as the initial conditions,and the design head was considered as a constraint condition,and the weighted average shaftpower at multiple operation conditions was chosen as the objective function.The adaptive simulated annealing algorithm was used to solve the model of hydraulic losses and energy performance.Additionally,the supertransitive approximation method was applied to update optimal weighted coefficients in the objective function.A centrifugal pump with a special speed of 129.3 was optimized with the method.The CFD numerical simulations were done for the original design and the optimized one,respectively.It was shown that the shaftpower of the optimized case is less,but the head is higher than the original design at 0.6Qd and 1.2Qd.The weighted average shaftpower optimized is decreased by 0.06%,but the weighted average efficiency rises by 0.46% compared with the original design.The results could be really useful to design an energysaving centrifugal pump.
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Articles by authors
WANG Kai
LIU Hou-Lin
YUAN Shou-Qi
WU Xian-Fang
WANG Yong
Key wordscentrifugal pump   multioperation condition   adaptive simulated annealing   weighted average shaftpower   optimization design     
Received: 2011-04-06; Published: 2012-01-30
Cite this article:   
WANG Kai,LIU Hou-Lin,YUAN Shou-Qi et al. Optimization method for hydraulic performance of centrifugal pump at multi operation points[J]. Journal of Drainage and Irrigation Machinery Engin, 2012, 30(1): 20-24.
 
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