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자료유형
학술저널
저자정보
김경엽 (한국산업기술대학교) 안철홍 (한국시설안전공단) 김범준 (한국시설안전공단)
저널정보
한국유체기계학회 한국유체기계학회 논문집 유체기계저널 제15권 제6호
발행연도
2012.12
수록면
70 - 76 (7page)

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Recently, because people are taking a great interest in the water supply system and the related facilities are getting larger, the surge suppression is very important problem. The waterhammer occurs when the pumps are started or stoped for operation or tripped due to the power failure. As the waterhammer problems as a result of the pump power failure were very serious, these situations were carefully investigated. Accordingly, we carried out both numerical simulations and field tests to confirm the safety of Juam intake pumping station in which had the in-line pumps. In this paper, it was reviewed that the water supply system has the reliability on the pressure surge, in case the air chambers were installed at both the inlet and the oulet of the in-line pumping station. From the numerical simulations, we found that negative pressure occurred at the inlet disappeared and high pressure occurred at the outlet reduced due to the air chambers. And these results of numerical simulations verified by the field test . The field tests carried out in case of normal start, normal stop, one and two of pumps emergency stop. By results of simulations and field tests, we are sure that Juam intake pumping station in which have the air chambers is safe for the waterhammer. In addition, we suggested the operation methods of facilities for safe maintenance of the pumping station.

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ABSTRACT
1. 서론
2. 수치해석
3. 현장시험과 수치해석결과의 비교 및 검토
4. 정밀안전진단에 따른 개선사례
5. 결론
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UCI(KEPA) : I410-ECN-0101-2014-554-000473356