A Study on Heat Storage System Using Calcined Dolomite - Numerical Analysis of Heat Transfer in Calcined Dolomite Dehydration Packed Bed -

소성Dolomite 수화물계의 축열시스템에 관한 연구 - 소성Dolomite 탈수반응층의 전열해석 -

  • 박영해 (영남이공대학 물질공학과) ;
  • 김종식 (계명대학교 공과대학 화학공학과)
  • Published : 2003.03.30

Abstract

To develope chemical heat pump using available energy sources, solar heat and other kinds of waste thermal energy, we have studied the material and heat transfer rate in the cylindrical bed reactor packed with Calcined Dolomite. Our results from the studies are as follows ; 1 The time needed to complete dehydration reaction at the wall side of the cylindrical reactor(r/rL=0.5) was shorter than that of the center(r/rL=0.0) as much as 12%. 2. Two dimensional (radial and circumferential) partial differential equations, concerning heat and mass transfer rate in the packed bed of calcined Dolomite, are solved numerically to describe the characteristics of the reaction in the cylindrical reactor. The solution reads rate of reaction in the packed bed reactor depends on the temperature and concentration of reactants. These results read the supplied heat transfers from the wall side of the cylinder to the center, dehydration reaction begins at the inner side of the wall of the cylindrical reactor and the dehydration reaction proceeds from the wall side to center of cylinder.

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References

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