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

The Korean Society of Mechanical Engineers (대한기계학회)
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A Numerical Analysis on the Heat Transfer and Pressure Drop Characteristics of Welding Type Plate Heat Exchangers

용접형 판형열교환기의 열전달 및 압력강하특성에 관한 수치해석

  • 정종윤 (경희대학교 대학원 기계공학과) ;
  • 남상철 (LS 전선(주) 기계연구소) ;
  • 강용태 (경희대학교 기계산업시스템공학부)
  • Published : 2008.09.01
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Abstract

Numerical analysis was carried out to examine the heat transfer and pressure drop characteristics of plate heat exchangers for absorption application using Computational Fluid Dynamics(CFD) technique. A commercial CFD software package, FLUENT was used to predict the characteristics of heat transfer, pressure drop and flow distribution within plate heat exchangers. In this paper, a welded plate heat exchanger with the plate of chevron embossing type was numerically analyzed by controlling mass flow rate, solution concentration, and inlet temperatures. The working fluid is $H_2O$/LiBr solution with the LiBr concentration of 50-60% in mass. The numerical simulation shows reasonably good agreement with the experimental results. Also, the numerical results show that plate of the chevron shape gives better results than plate of the elliptical shape from the view points of heat transfer and pressure drop. These results provide a guideline to apply the welded PHE for the solution heat exchanger of absorption systems.

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References

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Cited by

  1. Performance Evaluation of Plate Heat Exchanger with Chevron Angle Variations vol.33, pp.7, 2009, https://doi.org/10.3795/KSME-B.2009.33.7.520
  2. Numerical Simulation of the Fully Developed Flow and Heat Transfer of a Plate Heat Exchanger Taking into Account Variation in the Corrugation Height vol.36, pp.1, 2012, https://doi.org/10.3795/KSME-B.2012.36.1.001