Transactions of the Korean Society of Mechanical Engineers B (대한기계학회논문집B)

The Korean Society of Mechanical Engineers (대한기계학회)
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Flow/Heat Transfer Analysis and Shape Optimization of a Heat Exchanger with Internally Finned Tube

내부휜이 부착된 원형관 열교환기의 열/유동 해석 및 최적설계

  • 이주희 (한양대학교 대학원 기계공학과) ;
  • 이상환 (한양대학교 기계공학부) ;
  • 임효재 (호서대학교 기계공학과) ;
  • 박경우 (호서대학교 기계공학과)
  • Published : 2005.04.01
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Abstract

Analyses of flow and heat transfer characteristics and shape optimization of internally finned circular tubes have been performed for three-dimensional periodically fully developed turbulent flow and heat transfer. CFD and mathematical optimization are coupled in order to optimize the shape of heat exchanger. The design variables such as fin widths $(d_{1},\;d_{2})$ and fin height (h) are numerically optimized by minimizing the pressure loss and maximizing the heat transfer rate for limiting conditions of $d_{1}=0.2\~1.5\;mm,\;d_{2}=0.2\~1.5\;mm,$ and $h=0.2\~1.5mm$. Due to the periodic boundary conditions along main flow direction, the three layers of meshes are considered. The flow and thermal fields are predicted using the finite volume method and the optimization is carried out by means of the sequential quadratic programming (SQP) method which is widely used in the constrained nonlinear optimization problem.

Keywords

References

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  1. A Numerical Study on the Effect of Fin Pitch and Fin Array on the Heat Transfer Performance of a Pre-heater vol.16, pp.6, 2013, https://doi.org/10.5293/kfma.2013.16.6.040