서지주요정보
정상 및 비정상운전시 원심펌프성능해석을 위한 손실모델에 대한 연구 = Study on loss models for centrifugal pump performance analysis during normal & abnormal operation
서명 / 저자 정상 및 비정상운전시 원심펌프성능해석을 위한 손실모델에 대한 연구 = Study on loss models for centrifugal pump performance analysis during normal & abnormal operation / 정장규.
저자명 정장규 ; Chung, Chang-Kyu
발행사항 [대전 : 한국과학기술원, 1995].
Online Access 제한공개(로그인 후 원문보기 가능)원문

소장정보

등록번호

8005332

소장위치/청구기호

학술문화관(문화관) 보존서고

MME 95004

휴대폰 전송

도서상태

이용가능

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반납예정일

초록정보

A prediction procedure for pump performance during its normal and reverse flow operation is developed for centrifugal pumps with a vaneless diffuser by integrating empirical loss models and analytical equations. Losses in centrifugal pumps stem from a number of sources. However, their exact calculation is not yet possible. Most of the loss theories are one dimensional and many of the performance prediction procedures reproduce the experimental data only in a narrow region in the neighbourhood of the best efficiency point. In the present study, improvements are made for the prediction to cover the entire range of operation. To predict the complete performance of centrifugal pumps in general, it is essential to include the procedure for estimation of 'head slip' of the centrifugal impeller at various operating conditions. The past theory and correlations available for the head slip only concern the normal operation of the centrifugal pumps. In this study a concept of 'negative head slip' for centrifugal impellers during reverse flow opration has been presented. For the normal flow operation, prediction results are in good agreement with experimental data, which are better than the prediction by commercial computer code. Particularly, the predictions for the reverse flow operation agree well with the trend of experimental data.

서지기타정보

서지기타정보
청구기호 {MME 95004
형태사항 x, 71 p. : 삽도 ; 26 cm
언어 한국어
일반주기 저자명의 영문표기 : Chang-Kyu Chung
지도교수의 한글표기 : 정명균
지도교수의 영문표기 : Myung-Kyoon Chung
학위논문 학위논문(석사) - 한국과학기술원 : 기계공학과,
서지주기 참고문헌 : p. 39-43
주제 Centrifugal pumps.
Pumping machinery --Performance.
Diffusers.
Impellers.
기계 손실. --과학기술용어시소러스
원심 펌프. --과학기술용어시소러스
확산체 (유체) --과학기술용어시소러스
성능 분석. --과학기술용어시소러스
날개차. --과학기술용어시소러스
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