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공기구동 이젝터의 노즐 형상과 위치 변화에 따른 성능 특성Performance Characteristics of Air Driven Ejector According to the Position Changes and the Shape of Driving Nozzle
- Other Titles
- Performance Characteristics of Air Driven Ejector According to the Position Changes and the Shape of Driving Nozzle
- Issue Date
- 2008
- Publisher
- 한국마린엔지니어링학회
- Keywords
- Air driven ejector(공기구동 이젝터); Driving nozzle(구동 노즐); Diffuser(디퓨저); Motive fluid(구동 유체); Suction fluid(흡입 유체)
- Citation
- 한국마린엔지니어링학회지, v.32, no.4, pp 550 - 556
- Pages
- 7
- Indexed
- KCI
- Journal Title
- 한국마린엔지니어링학회지
- Volume
- 32
- Number
- 4
- Start Page
- 550
- End Page
- 556
- ISSN
- 2234-7925
2765-4796
- Abstract
- The aim of this research is to analyze the influence of motive pressure, driving nozzle position and nozzle throat ratio on the performance of ejector. The experiment was conducted in the variation of motive pressure of 0.196, 0.294, 0.392 and 0.490MPa respectively. The position of driving nozzle was varied in difference locations according to mixing tube diameter(0.5d, 1d, 2d, 3d, 4.15d, 5d and 6d). The experimental results show when the nozzle outlet is located at 3d, the flow characteristics change abruptly. It is shown that the suction flow rate and pressure lift ratio of ejector is influenced by the driving nozzle position. At nozzle position location of the 1d of mixing tube diameter the performance of ejector gives the best performance.
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