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    Title: Experimental and simulation study of an air gap membrane distillation module with solar absorption function for desalination
    Authors: Chang, H.;Chang, C.-L.;Ho, Chii-Dong;Li, C.-C.;Wang, P.-H.
    Keywords: Air gap membrane distillation;Desalination;Modeling;Optimization;Solar energy
    Date: 2010-05-20
    Issue Date: 2016-04-22 13:46:41 (UTC+8)
    Publisher: Taylor & Francis
    Abstract: Being capable of directly utilizing solar thermal energy, the solar driven membrane distillation desalination system has evolved as a promising technology for alleviating the energy and water resource problems. An innovative device for desalination, which is a hybrid of a solar collector and a membrane distillation, called SAF–AGMD (air gap membrane distillation with solar absorption function) is proposed. The experimental and simulation results are reported. The experimental results validate the feasibility of the design and the water production rate is enhanced by 2–8% compared to the simple AGMD module. The mathematic model takes into account the heat and mass transfers via correlations from the literature. The model is verified by the experimental data under different conditions, including the temperature and flow rate of inlet fluids, the air gap thickness and the solar radiation. The differences between the model predication and the experimental results are within 10%. The model is further incorporated with the experimental design method and response surface method for the optimization study. Considering water production and exergy loss, the optimal operation should use hot fluid of 325 K, cold fluid of 298 K and air gap thickness of 1.9 mm.
    Relation: Desalination and Water Treatment 25(1-3), pp.251-258
    DOI: 10.5004/dwt.2011.1880
    Appears in Collections:[化學工程與材料工程學系暨研究所] 期刊論文

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