Parametric Study of Vertical Diffusion Still for Water Desalination
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Parametric Study of Vertical Diffusion Still for Water Desalination

Authors: A. Seleem, M. Mortada, M. El Morsi, M. Younan

Abstract:

Diffusion stills have been effective in water desalination. The present work represents a model of the distillation process by using vertical single-effect diffusion stills. A semianalytical model has been developed to model the process. A software computer code using Engineering Equation Solver EES software has been developed to solve the equations of the developed model. An experimental setup has been constructed, and used for the validation of the model. The model is also validated against former literature results. The results obtained from the present experimental test rig, and the data from the literature, have been compared with the results of the code to find its best range of validity. In addition, a parametric analysis of the system has been developed using the model to determine the effect of operating conditions on the system's performance. The dominant parameters that affect the productivity of the still are the hot plate temperature that ranges from (55- 90°C) and feed flow rate in range of (0.00694-0.0211 kg/m2-s).

Keywords: Analytical Model, Solar Distillation, Sustainable Water Systems, Vertical Diffusion Still.

Digital Object Identifier (DOI): doi.org/10.5281/zenodo.1338134

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References:


[1] World Business Council for Sustainable Development, Facts and Trends: Water, WBCSD, 2009. (Online). Available: www.wbcsd.org/ Pages/EDocument/EDocumentDetails.aspx?ID=137. (Accessed September 2013).
[2] R. Dunkle, "Solar Water Distillation: The Roof Type Still and a Multiple-Effect Diffusion Still," International Heat Transfer Conference, University of Colorado, vol. 5, pp. 895-902, 1961.
[3] Cooper, P.I., Appleyard, J.A., "The construction and performance of a three effect, wick-type, tilted solar still," vol. 12, pp. 4-8, 1967.
[4] K. Selcuk, "Design and Performance Evaluation of A Multiple-Effect, Tilted Solar Distillation Unit," vol. 1, no. 8, 1964.
[5] Elsayed, M., Fathalah, K., Shams, J., and Sabbagh, J., "Performance of Multiple Effect Diffusion Stills," Desalination, vol. 51, pp. 183-199, 1984.
[6] M. M. Elsayed, "Effects of Parametric Conditions on the Performance of an Ideal Diffusion Still," Applied Energy, no. 22, pp. 187-203, 1986
[7] Garter, F., Durrbeck, M., Rheinlander J., "Multi-effect Still fot Hybrid Solar/Forssil Desalination of Sea and Brackish Water," Desalination, vol. 138, pp. 111-119, 2001.
[8] Tanaka, H., Nakatake, Y., "A Vertical Multiple-Effect Diffusion-Type Solar Still Coupled With a Heat-Pipe Solar Collector," Desalination, vol. 160, pp. 195-205, 2004.
[9] Tanaka, H., NakatakeY., Watanabe, K., "Parametric Study on a Veritcal Mutiple-effect diffusion-Type Solar Still Coupled with a Heat-Pipe Solar Collector," Desalination, vol. 171, pp. 243-253, 2004.
[10] Bouchekima, B., Gros, B., Ouaches, R., and Diboun, M., "The Performance of The Capillary Film Solar Still Installed in South Algeria," Desalination, no. 137, pp. 31-38, 2001.
[11] E. V. Somers, "Theoretical Considerations of Combined Thermal and Mass Transfer from a Flat Plate," ASME J. Appl. Mech, vol. 23, p. 295– 301, 1956.