淡江大學機構典藏:Item 987654321/122362
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    题名: Theoretical and experimental studies of double-unit air gap membrane distillation (DUAGMD) module for seawater desalination
    作者: Ho, Chii-Dong;Chen, Luke;Chen, Yu-An;Jiang, Jia-Yu;Lu, Pin-Tsen
    关键词: Air gap membrane distillation;Double-unit module;Permeate flux;S-ribs carbon-fiber spacers;Temperature polarization
    日期: 2021-12-27
    上传时间: 2022-03-04 12:13:27 (UTC+8)
    摘要: This study proposes modeling techniques for predicting distillate flux in a double-unit air gap membrane distillation (DUAGMD) module. The prediction is validated by experimental results by inserting S-ribs carbon-fiber spacers acting as an eddy promoter. A more compact double-unit device implementing S-ribs carbon-fiber spacers could increase the membrane stability to prevent flow-induced vibration and also enhance the production rate by suppressing temperature polarization on the membrane surface. The new design achieves a considerable pure water productivity by inserting S-ribs carbon-fiber spacers in the saline feed channel compared to an empty channel and the single unit module. The formulated Nusselt numbers are regressed
    with experimental data to predict the heat transfer coefficient of the DUAGMD module for both S-ribs carbon-fiber filled and empty channels. This study contributes to summarizing the effects of volumetric flow rate, saline feed temperature, and S-ribs types on the permeate flux. Besides
    analyzing the permeate flux enhancement, this study compares the energy consumption increment caused by the S-ribs carbon-fiber filled design with the permeate flux increment. A nice consistency between the experimental results and theoretical predictions has shown that the proposed model could predict AGMD system’s design and optimize the operation parameters.
    關聯: Desalination and Water Treatment 244, p.77-98
    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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