Proceedings of the SAREK Conference (대한설비공학회:학술대회논문집)

The Society of Air-Conditioning and Refrigerating Engineers of Korea (대한설비공학회)
권호 표지

A Semimicroscopic Analysis for the Characteristics of a Large Plate Heat Exchanger through a Microscopic Flow and Heat Transfer Analyses inside a Chevron Passages

Chevron 유로 내의 미시적 해석 결과를 통한 대형 판형열교환기 특성에 대한 준미시적 해석

  • Lee, Na-Ri (Graduate school, Department of Mechanical Engineering, Sogang University) ;
  • Lee, Myung-Sung (Graduate school, Department of Mechanical Engineering, Sogang University) ;
  • Lee, Sang-Hyuk (Graduate school, Department of Mechanical Engineering, Sogang University) ;
  • Hur, Nahm-Keon (Department of Mechanical Engineering, Sogang University)
  • Published : 2009.06.25
Download PDF
⟨ Previous Next ⟩

Abstract

In the present study, the flow and heat transfer characteristics of a large plate heat exchanger are investigated numerically. The flow passages are very complicated due to the grooved corrugation patterns of the plate surface so that the detailed mesh and the large amount of the computation time have to be required in the numerical simulation for the conjugate heat transfer analysis. In order to accomplish the efficient and fast analysis of the heat transfer characteristics in the plate heat exchanger, a semimicroscopic method using the porous media model has been investigated numerically. The results showed that the characteristics of the heat transfer and pressure drop, which are respectively presented with Colburn j-factor and Fanning f-factor, are in a good agreement between the detailed mesh and the porous media model. The results of the present study could be applicable to the numerical analysis of entire flow passages in the large plate heat exchanger using porous media treatment.

Keywords