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Energy saving effect of a novel passive air dehumidification unit.

Author(s) : ZHANG L. Z., LIANG C. H.

Summary

Concerns on indoor air quality have prompted the researches of novel air dehumidification techniques. This study proposed a new passive air dehumidification system, membrane-based total heat exchanger in which the fresh air is cooled and dried by the exhaust air in summer. To improve performance, a novel concept of composite supported liquid membrane combined with a cross-corrugated triangular duct structure is proposed. The sensible and latent effectiveness are calculated from heat mass transfer correlations. The total heat exchanger based on this concept has a sensible effectiveness of 0.82, and a latent effectiveness of 0.64, which are far higher than current commercial products. Besides, a total of 12.4% energy for air conditioning could be saved with this technology annually.

Details

  • Original title: Energy saving effect of a novel passive air dehumidification unit.
  • Record ID : 2009-0742
  • Languages: English
  • Source: Cryogenics and refrigeration. Proceedings of ICCR'2008.
  • Publication date: 2008/04/05

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