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동파방지용 열선을 적용한 밀폐된 원형 배관내에서 자연대류의 열유동 특성에 관한 연구

원문정보

A Study on Heat Flow Characteristics of Natural Convection in a Enclosed Circular Tube with Anti-freezing Heat Trace

서규원, 박형선, 윤준규

피인용수 : 0(자료제공 : 네이버학술정보)

초록

영어

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 Θ=135° and 180° was more favorable distribution than one-heat trace appropriate location Θ=135°.

목차

Abstract
 1. 서론
 2. 수치해석
  2.1 해석모델
  2.2 지배방정식
  2.3 수치해석
 3. 결과 및 고찰
  3.1 1개 열원의 열전달 및 유동특성
  3.2 분리된 2개 열원의 열전달 및 유동특성
 4. 결론
 References

저자정보

  • 서규원 Kyu-Won Seo. Department of Mechanical Engineering, Graduate School, Gachon University
  • 박형선 Hyeong-Seon Park. Jeong-il Industry Corporation
  • 윤준규 Jun-Kyu Yoon. Member, Department of Mechanical Engineering, Gachon University

참고문헌

자료제공 : 네이버학술정보

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