Browse > Article

Theoretical Derivation of the Optimum Rotation Speed of a Desiccant Rotor  

Lee, Dae-Young (Energy Mechanics Research Center, KIST)
Song, Gwi-Eun (Energy Mechanics Research Center, KIST)
Publication Information
Korean Journal of Air-Conditioning and Refrigeration Engineering / v.21, no.10, 2009 , pp. 575-582 More about this Journal
Abstract
The optimum rotation speed of a desiccant rotor is studied theoretically based on a theoretical solution to the heat and mass transfer processes in the desiccant rotor. A simple correlation equation for the optimum rotation speed is derived to show the effects of various parameters including the thermo-physical properties, the geometric dimension, and the operating condition of the desiccant rotor. The theoretical result is compared with existing experimental data to validate the linearization and simplification included in the solution procedure. Based on the theoretical solution, the effects of major parameters on the optimum rotation speed are studied and the fundamental mechanism of the influences is investigated.
Keywords
Desiccant rotor; Optimum rotation speed; Correla-tion; Theoretical solution;
Citations & Related Records
Times Cited By KSCI : 4  (Citation Analysis)
연도 인용수 순위
1 Lee, G., Kim M. S. and Lee, D.-Y., 2005, Derivation and analysis of dimensionless parameters dominating the dehumidification characteristics of a desiccant rotor, Korea Journal of Air-Conditioning and Refrigeration Engineering, Vol. 17, No. 7, pp. 611-619   과학기술학회마을   ScienceOn
2 Chung, J. D., Yoon, S. M., and Lee, D.-Y., 2007, Optimization of the area ratio of regeneration to dehumidification and rotor speed on the condition of low regeneration temperature, Korean Journal of Air- Conditioning and Refrigeration Engineering, Vol. 19, No. 7, pp. 521-528   과학기술학회마을   ScienceOn
3 Chung, J. D., Lee, D.-Y., and Yoon, S. M., 2007, Effect of desiccant and channel geometrics on the performance of desiccant rotor, Korean Journal of Air-Conditioning and Refrigeration Engineering, Vol. 19, No. 8, pp. 569-576
4 Lee, G., 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   ScienceOn
5 Zheng, W. and Worek, W. M., 1993, Numerical simulation of combined heat and mass transfer process in a rotary dehumidifier, Numerical Heat Transfer, Part A, Vol. 23, pp. 211-232   DOI   ScienceOn
6 Zheng, W., Worek, W. M. and Novosel, D., 1995, Performance optimization of rotary dehumidifiers, Journal of Solar Energy Engineering, Vol. 117, pp. 40-44   DOI   ScienceOn
7 Zheng, W., Worek, W. M. and Novosel, D., 1993, Control and optimization of rotational speeds for rotary dehumidifiers, ASHRAE Transactions: Symposia, pp. 825-833
8 Pesaran, A. A. and Mills, A. F., 1987, Moisture transport in Silica-Gel packed beds-II. Experimental study, Int. J. Heat Mass Transfer, Vol. 30, pp. 1051-1060   DOI   ScienceOn
9 Kodama, A., Hirayama, T., Motonobu, G., Tsutomu, H. and Critoph, R. E., 2001, The use of psychrometric charts for the optimisation of a thermal swing desiccant wheel, Applied Thermal Engineering, Vol. 21, pp. 1657-1674   DOI   ScienceOn
10 Dai, Y. J., Wang, R. Z. and Zhang, H. F., 2001, Parameter analysis to improve rotary desiccant dehumidification using a mathematical model, International Journal of Therm, Sci., Vol. 40, pp. 400-408   DOI   ScienceOn