• 한국유체기계학회 논문집
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• 제4권4호
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• pp.22-27
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• 2001

The pump/motor selection program for optimized selection of regional water supply facilities was developed based on a flowchart compiled from basic operational data, total head requirement, initial pump/motor specification selection etc. This program was developed in Visual Basic. The program accepts, as in the flowchart, operational requirements of pumps and other system requirements, and calculates specific speed based on flow rate, total head and rotational speed. Then the calculated specific speed is used to select pump types and speed prior to determining likelihood of cavitation occurring at the calculated NPSH. Power requirement is then calculated for safe operation of pump to assist final pump selection. Test results of the program match very closely to the design values of Paldang intake pump station(3rd stage) proving that the program can be used as an effective and practical aid for designing new regional water supply systems.

• 유체기계공업학회:학술대회논문집
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• 유체기계공업학회 2001년도 유체기계 연구개발 발표회 논문집
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• pp.171-176
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• 2001

The Pump/Motor Selection Program for optimized selection of regional water supply facilities was developed based on a flowchart compiled from basic operational data, total head requirement, initial pump/motor specification selection etc.. This program was developed in Visual Basic. The program accepts, as in the flowchart, operational requirements of pumps and other system requirements and calculates specific speed based on flow rate, total head and na Then the calculated specific speed is used to select pump types and rpm Prior to determining likelihood of cavitation occurring at the calculated NPSH. Power requirement is then calculated for safe operation of pump to assist final pump selection. Test results of the program matches very closely to the design values of Paldang intake pump station(3rd stage) proving that the program can be used as an effective and practical aid for designing new regional water supply systems.

• 대한기계학회논문집B
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• 제37권2호
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• pp.149-154
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• 2013

본 연구는 7kW 모터로 $18.5m^3/min$의 유량을 양정(H) 0.5m로 공급할 수 있는 고농도 폐수처리용 3엽 수중 펌프의 블레이드를 개발하는 것을 목표로 한다. 이를 위해 블레이드의 축방향 비틀림 각, 블레이드의 길이 및 반경방향 비틀림 각을 설계변수로 선정하여 이들이 블레이드 효율에 미치는 영향을 상용 해석용 프로그램을 사용한 (ANSYS BladeGen, Turbo Grid, CFX) 전산해석을 통해 수행하였다. 해석 결과 블레이드의 축방향 비틀림각(${\beta}$)가 펌프의 효율에 가장 민감한 변수임을 알 수 있었으며, 축방향 비틀림각 $({\beta})=20^{\circ}$, 반경방향 비틀림 각 $({\alpha})=110^{\circ}$ 그리고 블레이드의 길이 (l)=240 mm 일 때 펌프의 최고 효율을 가지게 됨을 알 수 있었다.