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    Please use this identifier to cite or link to this item: http://tkuir.lib.tku.edu.tw:8080/dspace/handle/987654321/115808


    Title: Distillate Flux Enhancement of the Concentric Circular Direct Contact Membrane Distillation Module with Spiral Wired Flow Channel
    Authors: Chii-Dong Ho;Luke Chen;Feng-Chi Tsai;Guan-Hong Lin;Jun-Wei Lim
    Keywords: Concentric circular DCMD;Spiral wire channel;Desalination;Distillate flux enhancement
    Date: 2019
    Issue Date: 2019-02-22 12:11:51 (UTC+8)
    Abstract: The modeling equations for predicting distillate flux in the direct contact membrane distillation (DCMD) module with embedded spiral wire of various spiral wire pitches in concentric circular module were developed theoretically and verified experimentally. The temperature distributions, distillate flux and energy consumption of both concurrent- and countercurrent-flow operations were presented with the volumetric flow rate, inlet saline temperature, the spiral wire as parameters, and the experimental data was incorporated into the modeling equations to validate the theoretical predictions. A description of the average Nusselt number was made to evolve a correlating equation of heat transfer coefficients incorporating distillate flux and Reynolds numbers with the use of experimental data. The effects of operating and design parameters such as flow rate, inlet saline temperature and spiral wire pitch on the pure water productivity and power consumption under both concurrent- and countercurrent-flow operations were also analyzed.
    Relation: Journal of the Taiwan Institute of Chemical Engineers 94, p.70-80
    DOI: 10.1016/j.jtice.2017.09.052
    Appears in Collections:[Graduate Institute & Department of Chemical and Materials Engineering] Journal Article

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