The KSFM Journal of Fluid Machinery (한국유체기계학회 논문집)
- Volume 3 Issue 1 Serial No. 6
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- Pages.43-50
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- 2000
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- 2287-9706(pISSN)
Upgrade Development of a Centrifugal Compressor for Marine Engine Turbochargers
선박용 터보차져 원심압축기의 성능향상 개발
- Published : 2000.03.01
Abstract
Upgrade development of a high pressure ratio centrifugal compressor in marine engine turbochargers is presented. A new matched operating point at increased speed of rotation was determined through system cycle analysis using the exisitng test data of turbine performance. Under some severe restrictions for geometric parameters, the state-of-the-art methods of both aerodynamic design and CFD analysis were applied, in which only an impeller, a vaned diffusor and some part of casing wall were modified. Prototype hardware was fabricated and assembled for system performance tests. Excellent performance in pressure ratio and efficiency was obtained over whole speed region. Reduced surge and choke margin was, however, observed at design speed of rotation.
선박용 디젤엔진에 정착되어 사용되는 기존의 터보차져 성능을 개량하기 위하여 압축기만의 수정개발을 수행한 결과를 요약하면 다음과 같다. (1) 터빈과의 싸이클 matching 작업을 통하여 기존의 압축기 성능에 비하여