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    题名: Experimental and simulation study of a solar thermal driven membrane distillation desalination process
    作者: Chang, Hsuan;Lyu, Shao-Gang;Tsai, Chih-Ming;Chen, Yih-Hang;Cheng, Tung-Wen;Chou, Ying-Hsiu
    贡献者: 淡江大學化學工程與材料工程學系
    关键词: Membrane distillation;Desalination;Modeling;Solar energy;Optimization;Process control
    日期: 2012-01-01
    上传时间: 2012-03-13 13:34:56 (UTC+8)
    出版者: Amsterdam: Elsevier BV
    摘要: Being capable of directly utilizing solar thermal energy, the solar membrane distillation desalination system (SMDDS) has evolved as a promising green technology for alleviating the water resource problem. This paper reports the experimental and simulation study of a SMDDS which utilizes the air gap type membrane distillation. A laboratory system with automatic control function was established. A control scheme for fully automatic operation was designed using the PI (proportional–integral) control algorithm, which is robust and commonly employed by industries. The control structure adopted PI temperature control for the solar thermal and the membrane distillation subsystems. A dynamic mathematical model including the control algorithm for the overall system was developed, built on Aspen Custom Modeler® platform, and verified by the experimental results. The optimization analysis using the model reveals the operation strategy for maximum water production. Because of the unpredictable solar irradiation, the corresponding optimal dynamic operation cannot be pre-determined and implemented during system operation. However, the proposed PI control scheme could provide a fairly good level of performance, for example up to about 80% of the maximum water production for sunny day operation.
    關聯: Desalination 286, pp.400-411
    DOI: 10.1016/j.desal.2011.11.057
    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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