本文对太阳能膜蒸馏热工质加热系统进行了简化，建立了加装导流板的全玻璃太阳能膜蒸馏热工质加热系统的物理模型，该模型包括全玻璃太阳能集热系统和膜蒸馏热腔两部分，本文提出二者的耦合集成点，得出耦合边界条件及其非稳态流动的设定方法，建立了太阳能膜蒸馏系统的三维非稳态CFD计算模型，得出求解方法及思路，得到了太阳能集热器联接管出口流体温度和流量的变化规律，与膜蒸馏热腔模型耦合计算，得出非稳态情况下膜通量与太阳能辐照强度的变化规律，为下一步太阳能利用与膜蒸馏的耦合优化奠定了基础。

The physical model for thermal medium heating system of water-in-glass evacuated tube with the guiding plate is established, aiming at for simplified thermal medium heating system in solar membrane distillation. Two simulation models of solar collector system and the membrane distillation are adopted, and two coupled integration points are proposed which locates at in outlet of the united manifolds in solar collectors and inlet of heat capacity chamber in membrane distillation system, at the same time, coupled boundary conditions and solving methods on the unsteady-state flow and ideas are given. The three-dimensional unsteady state CFD model of solar energy membrane distillation system is set up, and temperature for outlet are obtained, and membrane flux and solar radiation intensity variation under non-steady-state are obtained. The results lay the foundation for optimization on further utilization of solar energy coupled with membrane distillation.

[1]  Hassan E.S. Fath, Samy M. Elsherbiny, Alaa A. Hassan. PV and thermally driven small-scale, stand-alone solar desalination systems with very low maintenance needs [J]. Desalination.2008, 225:58-69.
[2]  田瑞.太阳能膜蒸馏淡化水系统研究进展[J]. 膜科学与技术， 2011 ,31(3):176-179.
[3] 田  瑞，王默晗，杨晓宏，等．太阳能膜蒸馏系统建模与仿真[J].可再生能源，2004（6）:10-13.
[4] 齐晓娟，田瑞，杨晓宏等．膜蒸馏装置热容腔流场数值模拟的可行性分析[J].工程热物理学报,2007,28(4):673-675.
[5] 闫素英，皇海燕，田瑞等.全玻璃真空太阳能热水器强化换热机理分析[J].工程热物理学报,2012,33(3):485-488.
[6] Drioli E, Wu Y L, Calabro V. Membrane distillation in the treatment of aqueous solutions[J]. J.Membr. Sci.1987, 33: 277-284
[7] Kevin W. Lawson，Douglas R. Lloyd. Review Membrane distillation [J]. Journal of Membrane Science. 1997，124：1-25
[8] 高虹，田瑞，杨晓宏，齐晓娟.空气隙膜蒸馏热腔温度边界层研究[J]. 膜科学与技术. 2011.31(1)：21-24.