کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
632825 | 1456001 | 2016 | 9 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Water vapor permeation and dehumidification performance of poly(vinyl alcohol)/lithium chloride composite membranes
ترجمه فارسی عنوان
عملکرد نفوذ بخار آب و عملکرد رطوبت از غشاء کامپوزیت پلی وینیل الکل / لیتیوم کلرید
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کلمات کلیدی
رطوبت هوا، نفوذ بخار آب، جذب آب، انتشار آب، انرژی فعال سازی، رطوبت غشاء خلاء،
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی شیمی
تصفیه و جداسازی
چکیده انگلیسی
Thin and robust composite membranes comprising stainless steel scaffold, fine and porous TiO2 and polyvinyl alcohol/lithium chloride were fabricated and studied for air dehumidification application. Higher hydrophilicity, sorption and permeation were observed for membranes with increased lithium chloride content up to 50%. The permeation and sorption properties of the membranes were investigated under different temperatures. The results provided a deeper insight into the membrane water vapor permeation process. It was specifically noted that lithium chloride significantly reduces water diffusion energy barrier, resulting in the change of permeation energy from positive to negative values. Higher water vapor permeance was observed for the membrane with higher LiCl content at lower temperature. The isothermal air dehumidification tests show that the membrane is suitable for dehumidifying air in high humid condition. Additionally, results also indicate a trade-off between the humidity ratio drop with the water vapor removal rate when varying air flowrate.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Membrane Science - Volume 498, 15 January 2016, Pages 254-262
Journal: Journal of Membrane Science - Volume 498, 15 January 2016, Pages 254-262
نویسندگان
Duc Thuan Bui, Aqdas Nida, Kim Choon Ng, Kian Jon Chua,