| Title |
Measurement of Effective Thermal Conductivity in Silica Gel Packed Bed |
| Keywords |
Packed bed ; 충전층 ; Transient hot wire method ; 비정상 열선가열법 ; Effective thermal conductivity ; 유효열전도율 ; Water content ; 함수율 ; Silica gel ; 실리카겔 |
| Abstract |
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 10℃≤≤50℃ and the pressure in the range of 10 kPa≤≤190kPa. The results show that 0.10～0.18W/m?K of effective thermal conductivity measured for the zero water content. |