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    Spiral multiple-effect diffusion solar still coupled with vacuum-tube collector and heat pipe

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    Type
    Article
    Authors
    Huang, Bin-Juine
    Chong, Tze-Ling
    Wu, Po-Hsien
    Dai, Han-Yi
    Kao, Yeong-Chuan
    KAUST Grant Number
    KUK-C1-014-12
    Date
    2015-04
    Permanent link to this record
    http://hdl.handle.net/10754/599696
    
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    Abstract
    © 2015 Elsevier B.V. A novel solar still with spiral-shape multiple-effect diffusion unit is developed in the present study. The test results of a 14-effect unit coupled with vacuum-tube solar collector (absorber area 1.08m2) show that the highest daily pure water production is 40.6kgd-1. The measured highest productivity based on the area of glass cover, solar absorber, and evaporating surface is 34.7, 40.6, and 7.96kgm-2d-1, respectively, which are much higher than the published results. The measured solar distillation efficiency is 2.0-3.5. The performance enhancement results mainly from the lateral diffusion process in the spiraled still cell. The vapor flow generated by heat input can flow freely and laterally through the spiral channel down to the end when solar heat input is high. Besides, the larger evaporating and condensing area at the outer cell may increase heat and mass transfer at the outer cell.
    Citation
    Huang B-J, Chong T-L, Wu P-H, Dai H-Y, Kao Y-C (2015) Spiral multiple-effect diffusion solar still coupled with vacuum-tube collector and heat pipe. Desalination 362: 74–83. Available: http://dx.doi.org/10.1016/j.desal.2015.02.011.
    Sponsors
    This publication is based on work supported by Award No. KUK-C1-014-12, made by King Abdullah University of Science and Technology (KAUST), Saudi Arabia, and by Grant No. NSC101-2221-E-002-067-MY2, Ministry of Science and Technology, Taiwan.
    Publisher
    Elsevier BV
    Journal
    Desalination
    DOI
    10.1016/j.desal.2015.02.011
    ae974a485f413a2113503eed53cd6c53
    10.1016/j.desal.2015.02.011
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