Effect of Operating Conditions on the Ceramic Particles Drying Process by Superheated Steam in the Packed Bed Dryer
Main Article Content
Abstract
A novel model of ceramic particle drying by superheated steam in the packed bed dryer is applied to examine the effects of operating conditions on the drying process. It is shown that the drying kinetic has two drying stages: the evaporation flux firstly increases to the maximum value while particle temperature is remained as saturation temperature, then the evaporation flux decreases to the zero, and particle temperature rises to the equilibrium temperature. Results also illustrate that the drying process is faster at the thinner bed layer, smaller particle diameter, and higher initial vapor velocity and temperature.
Keywords
Superheated steam drying, ceramic drying, packed bed
Article Details
References
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2. Romdhana, H.; Bonazzi, C.; Esteban-Decloux, M. Superheated Steam Drying: An Overview of Pilot and Industrial Dryers with a Focus on Energy Efficiency. Drying Technology 2015, 33(10), 1255–1274.
3. Zhu, J.; Wang, Q.; Lu, X. Status and Developments of Drying Low Rank Coal with Superheated Steam in China. Drying Technology 2015, 33(9), 1086–1100.
4. Prado, M.M.; Mazzini Sartori, D.J. Heat and Mass Transfer in Packed Bed Drying of Shrinking Particles. In Mass transfer in multiphase systems and its applications; El-Amin, M., Ed.; InTech: Rijeka, 2011.
5. Adamski, R.; Pakowski, Z. Identification of Effective Diffusivities in Anisotropic Material of Pine Wood during Drying with Superheated Steam. Drying Technology 2013, 31(3), 264–268.
6. Pakowski, Z.; Adamski, R.; Kwapisz, S. Effective diffusivity of moisture in low rank coal during superheated steam drying at atmospheric pressure. Chemical and Process Engineering 2012, 33(1), 43–51.
7. Ezhil, C. Superheated steam drying of foods—A review. World Journal of Dairy and Food Sciences 2010, 5(2), 214–217.
8. Sehrawat, R.; Nema, P.K.; Kaur, B.P. Effect of superheated steam drying on properties of foodstuffs and kinetic modeling. Innovative Food Science & Emerging Technologies 2016, 34, 285–301.
9. Messai, S.; El Ganaoui, M.; Sghaier, J.; Chrusciel, L.; Slimane, G. Comparison of 1D and 2D models predicting a packed bed drying. International Journal for Simulation and Multidisciplinary Design Optimization 2014, 5(10), A14.
10. Le, K.H.; Tran, T.Th.H.; Nguyen, N.; Kharaghani, A. Multiscale modelling of superheated steam drying of particulate materials. Chemical Engineering & Technology 2020.
11. Hager, J.; Wimmerstedt, R.; Whitaker, S. Steam drying a bed of porous spheres: Theory and experiment. Chemical Engineering Science 2000, 55(9), 1675–1698.