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http://dx.doi.org/10.7734/COSEIK.2018.31.2.79

Design Optimization of Two-Way Pump Casing through Flow Analysis  

Kim, Dong-Hwi (School of Mechanical Engineering, Pusan National Univ.)
Noh, Yoojeong (School of Mechanical Engineering, Pusan National Univ.)
Lim, O-Kaung (School of Mechanical Engineering, Pusan National Univ.)
Choi, Eun-Ho (Pusan Educational Center for Computer Aided Machine Design, Pusan National Univ.)
Choi, Ju Yong (Department of Mechatronics Engineering, Kyungsung Univ.)
Publication Information
Journal of the Computational Structural Engineering Institute of Korea / v.31, no.2, 2018 , pp. 79-85 More about this Journal
Abstract
A two-way pump can reduce costs by draining and circulating water out and into the drum of the washing machine using a single motor whereas a conventional one-way pump uses two motors for doing the same function. However, when the water is drained through the drainage outlet in the two-way pump casing, a backward or inhalation flow occurs and the water flows to the circulation outlet. Likewise, when the water is circulated, the backward flow or inhalation makes the water flow to the drainage outlet. In this study, design optimization of the two-way pump casing is performed to maximize its performance while improving backward flow and inhalation occurring inside of the pump casing. For this, design variables of the pump casing that mainly affect the performance of the pump such as flow rate and torque of the motor were selected through the analysis of mean. Using response surface models for the performances, the ratio of the flow rate to the torque was maximized with satisfying the constraints for the back flow and inhalation through design optimization.
Keywords
two-way pump; analysis of mean; design optimization; design of experiment; response surface method;
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Times Cited By KSCI : 2  (Citation Analysis)
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