동파방지용 열선을 적용한 밀폐된 원형 배관내에서 자연대류의 열유동 특성에 관한 연구A Study on Heat Flow Characteristics of Natural Convection in a Enclosed Circular Tube with Anti-freezing Heat Trace
- Other Titles
- A Study on Heat Flow Characteristics of Natural Convection in a Enclosed Circular Tube with Anti-freezing Heat Trace
- Authors
- 서규원; 박형선; 윤준규
- Issue Date
- 2015
- Publisher
- 한국기계기술학회
- Keywords
- Anti-freezing Heat Trace(동파방지용 열선); Circular Tube(원형 배관); Natural Convection(자연대류); Heat Flow(열유동); CFD(전산유체역학)
- Citation
- 한국기계기술학회지, v.17, no.6, pp.1143 - 1151
- Journal Title
- 한국기계기술학회지
- Volume
- 17
- Number
- 6
- Start Page
- 1143
- End Page
- 1151
- URI
- https://scholarworks.bwise.kr/gachon/handle/2020.sw.gachon/11170
- DOI
- 10.17958/ksmt.17.6.201512.1143
- ISSN
- 1229-604X
- Abstract
- In this study, the heat flow characteristics of natural convection was theoretically analyzed with time by changing various locations of heat trace with tube surface about enclosed circular tube by applying nominal tube diameter 90 mm of KS D 3507. Before carrying out CFD (Computational Fluid Dynamics) analysis, It is presumed that It is presumed that the boundary condition is the tube’s inside and outside fluid temperature of 273 °K, the tube surface heat flux according to the heat trace location of 16 W/m.
The result confirmed that water of inside tube is occurred natural convection caused by density difference depending on temperature profile. Additionally, in case of heat trace location, the heat transfer and flow characteristics showed clearly that two-heat trace location =135° and 180° was more favorable distribution than one-heat trace appropriate location θ=135°.
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Collections - 공과대학 > 기계공학과 > 1. Journal Articles
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