Transactions of the Korean Society of Mechanical Engineers A (대한기계학회논문집A)

The Korean Society of Mechanical Engineers (대한기계학회)
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Finite element analysis of flow and heat transfer in solid particle moving beds of heat exchanger

고체입자를 이용한 열교환기에서의 유동 및 열전달의 유한요소해석

  • Lee, Wan-Sul (Dept. of Mechanical Engineering, Graduate School of Korea Advanced Institute of Science and Technology) ;
  • Youn, sung-kie (Dept. of Mechanical Engineering, Korea Advanced Institute of Science and Technology) ;
  • Park, Sang-Il (Korea Institute of Energy Research)
  • 이완술 (한국과학기술원 대학원 기계공학과) ;
  • 윤성기 (한국과학기술원 기계공학과) ;
  • 박상일 (한국에너지기술연구소)
  • Published : 1998.04.01
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Abstract

Numerical analysis for the flow and heat transfer in solid particle moving beds of heat exchangers is presented. The solid particle flow through the bundle of heat source tubes by the gravitational force. The heat energy is transferred through the direct contact of particles with the heat source tubes. The viscous-plastic fluid model and the convective heat transfer model are employed in the analysis. The flow field dominantly influences the total heat transfer in a heat exchanger. As the velocities of solid particles around the heat source tubes increase, the amount of heat transfer from the tubes increases. Some examples are presented to show the performance of the numerical model. The flow effect on the heat transfer is also studied through the examples.

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