Air dehumidification by triethylene glycol desiccant in a packed column

Y. H. Zurigat, M. K. Abu-Arabi, S. A. Abdul-Wahab

Research output: Contribution to journalArticle

74 Citations (Scopus)

Abstract

The performance of an air dehumidifier using triethylene glycol (TEG) as desiccant under hot and humid conditions was investigated. The performance of the dehumidifier was evaluated and expressed in terms of the moisture removal rate and the dehumidifier effectiveness. A packed bed column (dehumidifier) was employed, with low packing density (77 m2/m3), to provide direct contact between the air and the TEG. Two different structured packings were used, wood and aluminum. The experiments covered a wide range of parameter space that included the air and TEG flow rates, air and TEG inlet temperatures, inlet air humidity and inlet TEG concentration. The liquid flow rate investigated is much less than that covered in previous studies (2s). The trend of the dehumidifier performance was similar to that reported in the literature using high density and random packing. The results were compared to the Chung and Luo correlation, which over predicted the effectiveness. The Martin and Goswami correlation failed to predict the effectiveness under the conditions of this study. In the present study, it was found that the moisture removal rate increased with increasing inlet TEG concentration, TEG flow rate and air flow rate. This was seen for both the wood and the aluminum packings. In addition, the moisture removal rate is increased with increasing the inlet air temperature for the aluminum packing only. The effectiveness of the column was increased by increasing the TEG flow rate and inlet TEG temperature for the two packings.

Original languageEnglish
Pages (from-to)141-155
Number of pages15
JournalEnergy Conversion and Management
Volume45
Issue number1
DOIs
Publication statusPublished - Jan 2004

Fingerprint

Glycols
Air
Intake systems
Flow rate
Moisture
Air intakes
Aluminum
Wood
Packed beds
Contacts (fluid mechanics)
Temperature
Atmospheric humidity
Liquids

Keywords

  • Dehumidifier performance
  • Desiccant
  • Packed bed column
  • Triethylene glycol (TEG)

ASJC Scopus subject areas

  • Energy Engineering and Power Technology
  • Fuel Technology
  • Nuclear Energy and Engineering
  • Renewable Energy, Sustainability and the Environment

Cite this

Air dehumidification by triethylene glycol desiccant in a packed column. / Zurigat, Y. H.; Abu-Arabi, M. K.; Abdul-Wahab, S. A.

In: Energy Conversion and Management, Vol. 45, No. 1, 01.2004, p. 141-155.

Research output: Contribution to journalArticle

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