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http://dx.doi.org/10.21289/KSIC.2022.25.1.121

A Study on Suction Pump Impeller Form Optimization for Ballast Water Treatment System  

Lee, Sang-Beom (Ship and Ocean R&D Institute, Daewoo Shipbuilding & Marine Engineering Co. Ltd.)
Publication Information
Journal of the Korean Society of Industry Convergence / v.25, no.1, 2022 , pp. 121-129 More about this Journal
Abstract
With the recent increase in international trade volume the trade volume through ships is also continuously increasing. The treatment of ballast water goes through the following five steps, samples are taken and analyzed at each step, and samples are obtained using a suction pump. These suction pumps have low efficiency and thus need to be improved. In this study, it is to optimize the form of the impeller which affects directly improvements of performance to determine the capacity of suction pump and to fulfill the purpose of this research. To do it, we have carried out parametric design as an input variable, geometric form for the impeller. By conducting the flow analysis for the optimum form, it has confirmed the value of improved results and achieved the purpose to study in this paper. It has selected the necessary parameter for optimizing the form of the pump impeller and analyzed the property using experiment design. And it can reduce the factor of parameter for local optimization from findings to analyze the property of form parameter. To perform MOGA(Multi-Objective Genetic Algorithm) it has generated response surface using parameters for local optimization and conducts the optimization using multi-objective genetic algorithm. with created experiment cases, it has performed the computational fluid dynamics with model applying the optimized impeller form and checked that the capacity of the pump was improved. It could verify the validity concerning the improvement of pump efficiency, via optimization of pump impeller form which is suggested in this study.
Keywords
Suction Pump; Pump Impeller; Form Optimization; MOGA; NSGA-II;
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