Measurement of Effective Thermal Conductivity in Silica Gel Packed Bed

실리카겔 충전층에서의 유효열전도율 측정

  • 권오경 (한국생산기술연구원 에너지시스템팀) ;
  • 윤재호 (한국생산기술연구원 에너지시스템팀) ;
  • 김종하 (한국생산기술연구원 에너지시스템팀)
  • Published : 2004.12.01


This paper presents an experimental measurement of effective thermal conductivity in an adsorbent packed bed with silica gel A type. The effective thermal conductivity was measured under different conditions of the adsorbent bed temperature, pressure, particle size and water content by using the transient hot wire method. The measured effective thermal conductivity showed to become bigger with decreasing particle size or increasing water content, but it was a little affected with increasing bed temperature and pressure. The bed temperature was varied in the range of 1$0^{\circ}C$ (equation omitted) T (equation omitted) 5$0^{\circ}C$ and the pressure in the range of 10 kPa (equation omitted) P (equation omitted) 190 kPa. The results show that 0.10~0.18 W/mㆍK of effective thermal conductivity measured for the zero water content.



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