| Title |
A Study on Heat Recovery Characteristics of Porous Media According to Periodic Oscillating Flows |
| Authors |
한화택(Hwataik Han) ; 신민우(Min-Woo Shin) |
| Keywords |
축열 ; 다공성 물질 ; 왕복유동 ; 폐열회수 환기장치 Heat storage ; Porous media ; Oscillating flow ; Heat recovery ventilator |
| 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. |