메뉴 건너뛰기
.. 내서재 .. 알림
소속 기관/학교 인증
인증하면 논문, 학술자료 등을  무료로 열람할 수 있어요.
한국대학교, 누리자동차, 시립도서관 등 나의 기관을 확인해보세요
(국내 대학 90% 이상 구독 중)
로그인 회원가입 고객센터 ENG
주제분류

추천
검색
질문

논문 기본 정보

자료유형
학술저널
저자정보
Chen Shao (Jiangsu University) Xianfang Wu (Jiangsu University) Minggao Tan (Jiangsu University) Houlin Liu (Jiangsu University) Haochen Ma (Jiangsu University)
저널정보
한국유체기계학회 International Journal of Fluid Machinery and Systems International Journal of Fluid Machinery and Systems Vol.17 No.4
발행연도
2024.12
수록면
200 - 210 (11page)
DOI
10.5293/IJFMS.2024.17.4.200

이용수

표지
📌
연구주제
📖
연구배경
🔬
연구방법
🏆
연구결과
AI에게 요청하기
추천
검색
질문

초록· 키워드

오류제보하기
To elucidate the relationship between the gas-liquid two-phase flow pattern and performance in a centrifugal pump, this study investigates the energy and transient characteristics of the pump under various inlet gas volume fraction (IGVF) and liquid flow rate (LFR) through visualization testing. The results indicate that at the nominal flow rate, the critical gas content for transitioning between different flow patterns increases with the LFR. At lower flow rate, the transition from gas pocket flow (GPF) to gas-liquid separation flow (GLSF) shows the most significant gradient change in critical gas content. At higher flow rate, the transition from bubbly flow (BF) to GPF exhibits the most significant gradient change in critical gas content. When the flow regime is BF at the nominal flow rate, additional gas entry leads to a decrease in pump head and efficiency, accompanied by periodic changes in pressure fluctuation. When the flow pattern shifts to GPF, additional gas entry similarly decreases pump head and efficiency. Notably, pump head decreases significantly at the IGVF of 3.1% and 3.9%, with reductions of 52.8% and 69.0%, respectively. Unlike BF, pressure fluctuation does not exhibit apparent periodicity. Under the condition of IGVF = 1.0%, as the flow regime transitions from BF to GPF, increasing the LFR results in a decrease in pump head and an increase in efficiency, along with an increase in the peak value of pressure fluctuation. When the flow regime in the pump is BF, both pump head and efficiency decrease with increasing LFR, leading to a decrease in the peak value of pressure fluctuation. Notably, when the LFR increases to 35 m³/h, the continuous increase in IGVF results in a maximum reduction in pump head and efficiency of 35.56% and 20.04%, respectively.

목차

Abstract
1. Introduction
2. Text System and Method
3. Analysis of Test Result
4. Conclusion
References

참고문헌 (0)

참고문헌 신청

함께 읽어보면 좋을 논문

논문 유사도에 따라 DBpia 가 추천하는 논문입니다. 함께 보면 좋을 연관 논문을 확인해보세요!

이 논문의 저자 정보

최근 본 자료

전체보기

댓글(0)

0

UCI(KEPA) : I410-151-25-02-092139635