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논문 기본 정보

자료유형
학술대회자료
저자정보
백종민 (충남대학교) 최원철 (한국기계연구원) 유일수 (한국기계연구원) 김수원 (한국기계연구원) 임영철 (한국기계연구원) 김병재 (충남대학교)
저널정보
한국유체기계학회 한국유체기계학회 학술대회 논문집 2024년 한국유체기계학회 동계학술대회
발행연도
2024.12
수록면
177 - 183 (7page)

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초록· 키워드

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Axial-flow pumps are widely used to transport large volumes of fluids in drainage pumping stations or water and sewage treatment plants. In general, pumps are designed to operate with high efficiency under constant rated flow conditions, so waste power occurs due to reduced efficiency under operating conditions that deviate from the design flow rate. Accordingly, the concept of a variable inlet guide vanes(IGV) that can change the installation angle is being introduced as a method to improve operating efficiency in response to frequent changes in the operating flow rate. This study investigated the effects of IGV angle adjustments on the performance of an axial flow pump with a specific speed of 1200-class. The IGV angle was systematically varied in 10° increments within a range of -20° to +20°. Hydraulic performance and cavitation tests were conducted across various flow rates for each angle configuration. The experimental results revealed a significant correlation between IGV angle adjustments and pump performance parameters. As the IGV angle was adjusted toward positive values, a correspoding increase in the total head of the axial pump was observed. Conversely, adjustments towards negative angles resulted in a decrease in total head. Futhermore, the study demonstrated that IGV angle modifications also influenced suction performance. When the IGV angle was adjusted to positive, a general decrease in suction performance was noted across the entire flow rate range. In contrast, negative IGV angle adjustments led to improved suction performance. However, it is noteworthy that this improvement in suction performance became less pronounced as the flow rate increased. These findings highlight the significant influence of IGV angle on axial pump performance, offering the potential for performance optimization in different operational scenarios.

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ABSTRACT
1. 서론
2. 연구 방법
3. 연구 결과
4. 결론
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