Korean Journal of Air-Conditioning and Refrigeration Engineering (설비공학논문집)

The Society of Air-Conditioning and Refrigerating Engineers of Korea (대한설비공학회)
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Shape Optimization of Internally Finned Tube with Helix Angle

나선형 핀이 내부에 부착된 관의 형상최적화

  • Kim, Yang-Hyun (Department of Architectural Equipment, Chosun College of Science & Technology) ;
  • Ha, Ok-Nam (Department of Mechanical Engineering, Chosun University) ;
  • Lee, Ju-Hee (Department of Mechatronics Engineering, Hoseo University) ;
  • Park, Kyoung-Woo (Department of Mechanical Engineering, Hoseo University)
  • 김양현 (조선이공대학 건축설비과) ;
  • 하옥남 (조선대학교 기계공학과) ;
  • 이주희 (호서대학교 메카트로닉스공학과) ;
  • 박경우 (호서대학교 기계공학과)
  • Published : 2007.07.10
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Abstract

The Optimal solutions of the design variables in internally finned tubes have been obtained for three-dimensional periodically fully developed turbulent flow and heat transfer. For a trapezoidal fin profile, performances of the heat exchanger are determined by considering the heat transfer rate and pressure drop, simultaneously, that are interdependent quantities. Therefore, Pareto frontier sets of a heat exchanger can be acquired by integrating CFD and a multi-objective optimization technique. The optimal values of fin widths $(d_1,\;d_2)$, fin height(h) and helix angle$(\gamma)$ are numerical1y obtained by minimizing the pressure loss and maximizing the heat transfer rate within ranges of $d_1=0.5\sim1.5mm$, $d_2=0.5\sim1.5mm$, $h=0.5\sim1.5mm$, and $\gamma=0\sim20^{\circ}$. For this, a general CFD code and a global genetic algorithm(GA) are used. The Pareto sets of the optimal solutions can be acquired after $30^{th}$ generation.

Keywords

References

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