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

The Society of Air-Conditioning and Refrigerating Engineers of Korea (대한설비공학회)
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Numerical Study of Heat Transfer with Selective Phase Change in Two Different Phase Change Materials

이종 PCM의 선택적 상변화 시의 열전달 해석

  • Kim, Hyung Kuk (Department of Mechanical Engineering, Chonbuk National University) ;
  • Lee, Dong Gyu (Department of Mechanical Engineering, Chonbuk National University) ;
  • Peck, Jong Hyeon (Korea Institute of Industrial Technology) ;
  • Kang, Chaedong (Geothermal Energy technology Research Center, Chonbuk National University)
  • Received : 2013.03.14
  • Published : 2013.09.10
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Abstract

A numerical analysis of solid-liquid phase change was performed on a heat transfer module which consisted of circulating water path (BRINE), heat transfer plate (HTP) and phase change material (PCM) layers, such as high temperature PCM (HPCM, $78{\sim}79^{\circ}C$) and low temperature PCM (LPCM, $28{\sim}29^{\circ}C$). There were five arrangements, consisting of BRINE, HTP, LPCM and HPCM layers in the heat transfer module. The time and heat transfer rate for melting/solidification was compared to their arrangements, against each other. As results, the numerical time without convection was longer than the experimental one for melting/solidification. Moreover, the melting/solidification with the BRINE I-LPCM-BRINE II-HPCM arrangement was faster(10 hours) than the others; HPCM-BRINE-LPCM, BRINE I-HPCM-LPCM-BRINE II one.

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References

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