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사이클론 건조기용 이젝터 유동 특성에 관한 연구A Study on Flow Characteristics of Ejector for Cyclone Air Drying Machine
- Other Titles
- A Study on Flow Characteristics of Ejector for Cyclone Air Drying Machine
- Authors
- 김봉환
- Issue Date
- 2012
- Publisher
- 한국기계가공학회
- Keywords
- Cyclone Air Drying Machine(사이클론 건조기); Sludge Drying(슬러지 건조); Air Ejector(공기 이젝터); CFD(전산유체역학)
- Citation
- 한국기계가공학회지, v.11, no.6, pp 189 - 194
- Pages
- 6
- Indexed
- KCI
- Journal Title
- 한국기계가공학회지
- Volume
- 11
- Number
- 6
- Start Page
- 189
- End Page
- 194
- ISSN
- 1598-6721
2288-0771
- Abstract
- The purpose of this study is to predict the performance of a cyclone drying machine and air ejector used in drying applications. This paper deals with optimization of the geometry of the ejector for sludge drying using computational fluid dynamics. To facilitate the design of a jet ejector for air drying machines, a numerical model of simultaneous mass and heat transfers between the liquid(sludge) and gas(air) phases in the jet ejector was developed. The steady-state model was based on unidimensional balance equations of mass, energy and momentum for the liquid and gas phases. It was shown that the optimum condition to minimize pressure and momentum loss of air in the ejector was d=220mm. It was found that sludge particles inside the cyclone was smoothly discharged by the conical wedge installed on the bottom of the cyclone.
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Collections - 융합기술공과대학 > Department of Automotive Engineering > Journal Articles
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