Experimental and theoretical research of a fin-tube type internally-cooled liquid desiccant dehumidifier

Yimo Luo, Shuangquan Shao, Hongbo Xu, Changqing Tian, Hongxing Yang

Research output: Journal article publicationJournal articleAcademic researchpeer-review

51 Citations (Scopus)

Abstract

The experimental studies of fin-tube type internally-cooled dehumidifiers are still limited until now. In the present paper, the performance of a cross-flow internally-cooled dehumidifier is studied by both of experiment and simulation. The dehumidifier is made up of fin-tube heat exchangers with high corrosion resistance. Compared with the dehumidifier of the literature, it is found that the dehumidifier of this work performs well in terms of the dehumidification efficiency. Meanwhile, the heat transfer coefficient is correlated on the basis of the experimental data. By applying the correlated coefficient, the theoretical model can predicate the performance of the dehumidifier with an acceptable accuracy. Then the validated model is employed to give suggestions for optimizing the geometry design and operating conditions of the dehumidifier. Through calculation, it is discovered that the best length of the air flow direction for the present dehumidifier is about 0.3. m. In addition, the ratio of solution to air flow rate can be decided by the simulation as well.
Original languageEnglish
Pages (from-to)127-134
Number of pages8
JournalApplied Energy
Volume133
DOIs
Publication statusPublished - 15 Nov 2014

Keywords

  • Fin-tube type
  • Heat transfer coefficient
  • Internally-cooled

ASJC Scopus subject areas

  • Civil and Structural Engineering
  • Energy(all)

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