Air humidification by a liquid membrane of triethylene glycol

Author

Li, Jinlong ; Sui, Guozhe ; Zuo, Chunling ; Deng, Qigang

Author_Institution

Coll. of Chem. & Chem. Eng., Qiqihar Univ., Qiqihar, China

fYear

2011

fDate

24-26 June 2011

Firstpage

7357

Lastpage

7359

Abstract

Triethylene glycol (TEG) liquid was used to a liquid membrane material for indoor air humidification. An novel surface-soaked liquid membrane under vacuum permeation was developed using a hydrophobic microporous membrane, only one surface of which was hydrophillic-treated to contain TEG by corona treatment. A flat membrane module with 0.39 m2 area was placed in outdoor, and water vapor was permeated to humidify the indoor air avoiding by the risk of contamination of indoor air. When the sweep air flow rate was 6 L/min, the relative humidity of sweep air and outdoor air was 20-48% RH at 297 K, water vapor permeation rate reached to 1.5-3.8 g-water/h. For this air humidification theoretic model was proposed and verified to predict the performance of operation well.

Keywords

humidity control; hydrophobicity; membranes; corona treatment; flat membrane module; hydrophobic microporous membrane; indoor air humidification; liquid membrane material; surface-soaked liquid membrane; triethylene glycol; vacuum permeation; water vapor; Atmospheric modeling; Humidity; Mathematical model; Polymers; Surface contamination; Surface treatment; Water pollution; air humidification; liquid membrane; triethylene glycol; water vapor;

fLanguage

English

Publisher

ieee

Conference_Titel

Remote Sensing, Environment and Transportation Engineering (RSETE), 2011 International Conference on

Conference_Location

Nanjing

Print_ISBN

978-1-4244-9172-8

Type

conf

DOI

10.1109/RSETE.2011.5966068

Filename

5966068