Browse > Article

A Study on Heat Recovery Characteristics of Porous Media According to Periodic Oscillating Flows  

Han, Hwa-Taik (School of Mechanical and Automotive Engineering, Kookmin University)
Shin, Min-Woo (Graduate School, Kookmin University)
Publication Information
Korean Journal of Air-Conditioning and Refrigeration Engineering / v.19, no.2, 2007 , pp. 175-182 More about this Journal
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.
Keywords
Heat storage; Porous media; Oscillating flow; Heat recovery ventilator;
Citations & Related Records
Times Cited By KSCI : 2  (Citation Analysis)
연도 인용수 순위
1 Riaz, M., 1977, Analytical solutions for single and two-phase models of packed bed thermal energy systems, Journal of Heat Transfer, Trans. ASME, Vol. 99, pp. 489-492   DOI
2 Ozturk, H. H. and Bascetincelik, A., 2003, Energy and exergy efficiency of a packed-bed heat storage unit for greenhouse heating, Biosystems Engineering, Vol. 86, No.2, pp. 231-245   DOI   ScienceOn
3 Frank, W., Schmidt, A. and Willmitt, J., 1981, Thermal energy storage and regeneration, Hemisphere Publishing Co
4 Whitaker, S., 1972, Forced convection heat transfer correlation for flow on pipes, past flat plates, single cylinders, single spheres, and for flow in packed beds and tube bundles, AIChE Journal, Vol. 18, pp.361-371   DOI
5 Han, H. and Baik, C. I., 2004, Inhaling and exhaling heat recovery ventilator using the concept of AC ventilation, Magazine of SAREK, Vol. 33, No.9, pp.47-52
6 Kline, S. and McClinktock, F., 1953, Describing uncertainties in single-sample experiments, Mechanical Engineering, Vol. 75, pp.3-8
7 Byun, S. Y., Lee, D. Y. and Ro, S. T., 2001, Transient heat transfer in porous media under oscillating flow condition, Trans. of the KSME(B), Vol. 25, No.3, pp.422-432   과학기술학회마을
8 Lee, J. B., Lee, D. Y. and Kim, M. S., 2004, Development of a linearized model and verification of the exact solution for the analysis of a desiccant dehumidifier, Korean Journal of Air-Conditioning and Refrigeration Engineering, Vol. 16, No.9, pp.811-819   과학기술학회마을