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Performance comparisons of desiccant wheels for air dehumidification and enthalpy recovery.

Author(s) : ZHANG L. Z., NIU J. L.

Type of article: Article

Summary

In this article, the performances of desiccant wheels used in air dehumidification and enthalpy recovery are compared. To accomplish this, a two-dimensional, dual-diffusion transient heat and mass transfer model which takes into account the heat conduction, the surface and gaseous diffusion in both the axial and the thickness directions, is presented. The effects of the rotary speed, the number of transfer units, and the specific area on the performance of the wheel are investigated and compared in the two situations. The cycles that the desiccant and air undergo in the wheel are plotted using psychrometric charts to demonstrate the different heat and moisture transfer mechanisms during the dehumidification and enthalpy recovery processes.

Details

  • Original title: Performance comparisons of desiccant wheels for air dehumidification and enthalpy recovery.
  • Record ID : 2003-2961
  • Languages: English
  • Source: Applied Thermal Engineering - vol. 22 - n. 12
  • Publication date: 2002/08

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