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Performance analysis of desiccant dehumidification systems driven by low-grade heat source.

Author(s) : JEONG J., YAMAGUCHI S., SAITO K., et al.

Type of article: Article, IJR article

Summary

If a desiccant dehumidification system can be driven by a heat source whose temperature is below 50°C, exhaust heat from devices such as fuel cells or air conditioners can be used as its heat source, thereby saving energy. Therefore, in this study, the authors used a previously validated simulation model to determine the minimum heat source temperature for driving a desiccant dehumidification system. The authors considered four desiccant dehumidification systems that can be driven by waste heat: conventional desiccant-type systems (wheel type and batch type with only desiccant), a system with a precooler, double-stage-type systems (a type with two desiccant wheels and a four-partition desiccant wheel type), and a batch-type system with an internal heat exchanger. The authors found that among these systems, the last system can be driven by the lowest heated air temperature, approximately 33°C, which is considerably lower than that of the conventional system.

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Details

  • Original title: Performance analysis of desiccant dehumidification systems driven by low-grade heat source.
  • Record ID : 30000511
  • Languages: English
  • Source: International Journal of Refrigeration - Revue Internationale du Froid - vol. 34 - n. 4
  • Publication date: 2011/06

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