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    题名: Theoretical modeling and experimental analysis of direct contact membrane distillation
    作者: Chen, Tsung-Ching;Ho, Chii-Dong;Yeh, Ho-Ming
    贡献者: 淡江大學化學工程與材料工程學系
    关键词: Direct contact membrane distillation;Temperature polarization;Saline water desalination;Pure water productivity;Hydraulic dissipated energy
    日期: 2009-03-01
    上传时间: 2011-10-21 16:34:51 (UTC+8)
    出版者: Amsterdam: Elsevier BV
    摘要: A two-dimensional mathematical model was theoretically developed to predict the temperature polarization profile of direct contact membrane distillation (DCMD) processes. A concurrent flat-plate device was designed to verify the theoretical prediction of pure water productivity on saline water desalination. The numerical results from the temperature polarization profile were obtained using the finite difference technique to reduce the two-dimensional partial differential equations into an ordinary differential equations system. The resultant simultaneous linear equations system was solved with the fourth-order Runge-Kutta method. The results show theoretical prediction agreement with the measured values from the experimental runs. A combination of the Knudsen flow and Poiseuille flow models in the present mathematical formulation for membrane coefficient estimation was used to establish theoretical agreement. The influence of the inlet saline water temperature and volumetric flow rate on the pure water productivity as well as the hydraulic dissipated energy are also delineated.
    關聯: Journal of Membrane Science 330(1-2), pp.279-287
    DOI: 10.1016/j.memsci.2008.12.063
    显示于类别:[化學工程與材料工程學系暨研究所] 期刊論文

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