Korean Journal of Air-Conditioning and Refrigeration Engineering (설비공학논문집)

The Society of Air-Conditioning and Refrigerating Engineers of Korea (대한설비공학회)
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A Study on Heat Recovery Characteristics of Porous Media According to Periodic Oscillating Flows

주기적 왕복유동에 의한 축열매체의 열회수 특성에 관한 연구

  • Han, Hwa-Taik (School of Mechanical and Automotive Engineering, Kookmin University) ;
  • Shin, Min-Woo (Graduate School, Kookmin University)
  • Published : 2007.02.10
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Abstract

The objective of the present study is to investigate the heat storage characteristics of a packed bed according to periodically oscillating flows. Experiments have been performed to measure transient temperature distributions in solid and fluid Phases of the porous media. A simplified analytical model has been developed with intra-particle and dispersion effects neglected, and non-dimensional parameters have been derived. The transient temperature distributions according to the simplified numerical model agree well with the experimental results. Heat storage efficiencies defined in two different ways are obtained for various time periods and face velocities.

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References

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