Jeong, Seongpil Lee, Songbok Chon, Hyo-Taek Lee, Seockheon 2024-01-20T09:01:04Z 2024-01-20T09:01:04Z 2021-09-02 2014-09-15 0011-9164 https://pubs.kist.re.kr/handle/201004/126340 Direct contact membrane distillation (DCMD) module was operated with three flat sheet commercial membranes (PTFE/PP 1.0, PTFE/PP 0.45, and PTFE/PE 0.45) under various operating conditions. High flux was observed when the PTFE/PP 1.0 membrane was used and there was no membrane wetting when the feed concentration was up to 3.0 M as NaCl. In order to understand the relationship between membrane characteristics and operating conditions, the heat and mass transfer models were employed. Instrumental analyses (SEM, porosimetry and contact angle analysis) were carried out for the membrane characteristics and thermo-hydrodynamic parameters were calculated under given experimental conditions. High flux of PTFE/PP 1.0 membrane was thermodynamically possible because the flow in the feed side was not fully developed in the water channel of the module. The membrane characteristics, such as pore-size of active layer and porosity and thickness of support layer were also attributed to a high flux of PTFE/PP 1.0 membrane. (C) 2014 Elsevier B.V. All rights reserved. English ELSEVIER SCIENCE BV FLUX Structural analysis and modeling of the commercial high performance composite flat sheet membranes for membrane distillation application Article 10.1016/j.desal.2014.05.027 1 DESALINATION, v.349, pp.115 - 125 DESALINATION 349 115 125 scie scopus 000340990500014 2-s2.0-84904430308 Engineering, Chemical Water Resources Engineering Water Resources Article FLUX Membrane distillation Flat sheet bi-composite membranes DCMD Heat and mass transfer modeling Non-fully developed flow