Experimental study on performance measurement of planar vacuum membrane dehumidifier with serpentine flow channel designs

Chun-Han Li; Zih-Jyun Lin; Chih-Chang Chang; Saman Rashidi; Wei-Mon Yan

Alexandria Engineering Journal (Dec 2022)

Experimental study on performance measurement of planar vacuum membrane dehumidifier with serpentine flow channel designs

Chun-Han Li,
Zih-Jyun Lin,
Chih-Chang Chang,
Saman Rashidi,
Wei-Mon Yan

Affiliations

Chun-Han Li: Department of Energy and Refrigerating Air-Conditioning Engineering, National Taipei University of Technology, Taipei 10608, Taiwan; Research Center of Energy Conservation for New Generation of Residential, Commercial, and Industrial Sectors, National Taipei University of Technology, Taipei 10608, Taiwan
Zih-Jyun Lin: Department of Energy and Refrigerating Air-Conditioning Engineering, National Taipei University of Technology, Taipei 10608, Taiwan; Research Center of Energy Conservation for New Generation of Residential, Commercial, and Industrial Sectors, National Taipei University of Technology, Taipei 10608, Taiwan
Chih-Chang Chang: Division of Energy, Refrigeration & Air-Conditioning Engineering, Department of Industrial Technology Education, National Kaohsiung Normal University, Kaohsiung 82444, Taiwan
Saman Rashidi: Department of Energy, Faculty of New Science and Technologies, Semnan University, Semnan, Iran; Corresponding authors at: Department of Energy and Refrigerating Air-Conditioning Engineering, National Taipei University of Technology, Taipei 10608, Taiwan (W.-M. Yan).
Wei-Mon Yan: Department of Energy and Refrigerating Air-Conditioning Engineering, National Taipei University of Technology, Taipei 10608, Taiwan; Research Center of Energy Conservation for New Generation of Residential, Commercial, and Industrial Sectors, National Taipei University of Technology, Taipei 10608, Taiwan; Corresponding authors at: Department of Energy and Refrigerating Air-Conditioning Engineering, National Taipei University of Technology, Taipei 10608, Taiwan (W.-M. Yan).

Journal volume & issue: Vol. 61, no. 12
pp. 10701 – 10711

Abstract

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In recent years, membrane dehumidification, as a novel dehumidification technology, has received many attentions for energy efficiency in air conditioning systems. Its dehumidification technology is characterized by isothermal dehumidification, which can avoid excess energy consumption. This experimental study focuses on the performance measurement of the planar vacuum membrane dehumidifier. Nafion membrane is used in combination with a planar membrane dehumidifier. A vacuum membrane dehumidification method is also employed to investigate the dehumidification performance. Four serpentine flow channel designs, including three-snake, four-snake, five-snake, and six-snake flow channel designs, are tested at the certain values of temperature and humidity and different inlet air flow rates. Different performance indexes, including water collection, dehumidification rate, pressure loss, and pumping power, are investigated. The results show that the amount of water collected by the cold trap increases with boosting the inlet flow rate in the range of 35 l/min to 55 l/min and it has the largest value when the inlet air flow rate is 55 l/min. However, the amount of water collected by the cold trap decreases with further increase of the inlet flow rate in the range of 55 l/min to 65 l/min.

Published in Alexandria Engineering Journal

ISSN: 1110-0168 (Print); 2090-2670 (Online)
Publisher: Elsevier
Country of publisher: Egypt
LCC subjects: Technology: Engineering (General). Civil engineering (General)
Website: http://www.journals.elsevier.com/alexandria-engineering-journal/

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