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Adsorption/desorption behaviour of water vapour in an adsorbent desiccant rotor.

[In Japanese. / En japonais.]

Author(s) : TSUJIGUCHI T., KODAMA A.

Type of article: Article

Summary

By means of computer simulation, angular and axial distributions of the amount of adsorbed water, air humidity, air temperature and adsorbent temperature inside the desiccant rotor under various operating conditions were investigated. In the mathematical model, lumped mass transfer coefficient was used and its value were derived from the fitting with experimental results to improve the reliability of discussion about the simultaneous heat/mass transfer in the desiccant rotor. It was found that the part of honeycomb rotary adsorber which is close to the regeneration air inlet cannot work well as an adsorbent at higher regeneration temperature regardless of outside air condition and regeneration air humidity. On the other hand, since the driving force was extremely low throughout all the axial positions, water vapour was adsorbed gradually at the whole axial position of rotor under a lower regeneration temperature. Consequently, the study could clarify the importance of the optimization of the rotor in terms of its length depending on the operating and air conditions.

Details

  • Original title: [In Japanese. / En japonais.]
  • Record ID : 2006-2559
  • Languages: Japanese
  • Source: Transactions of the Japan Society of Refrigerating and Air Conditioning Engineers - vol. 22 - n. 4
  • Publication date: 2005

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