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Performance of desiccant/evaporative cooling in Canadian office buildings using the functions of DOE-2.1E.

Author(s) : KEMP S., BEN-ABDALLAH N., STYLIANOU M., HOSATTE S.

Summary

The simulation of the building heating and cooling is performed using DOE-2.1E building energy usage simulation software. The desiccant evaporative cooling system involves a rotary desiccant dehumidification wheel, an indirect evaporative cooler and finally a direct evaporative cooler. The energy consumed by this system includes the electricity necessary to run the ventilation fans, and a natural gas heat source used for regeneration of the desiccant material. The system also consumes water in the indirect and direct evaporative cooling components. The study reveals that under climatic conditions, typical of the region of Ottawa, increased levels of ventilation are necesary when compared to conventional vapour compression system at equivalent supply temperatures. Typically the circulation rate in the building is increased between 150 and 175% from normal direct-expansion coil ventilation rates to achieve satisfactory comfort conditions.

Details

  • Original title: Performance of desiccant/evaporative cooling in Canadian office buildings using the functions of DOE-2.1E.
  • Record ID : 1998-1205
  • Languages: English
  • Source: Ab-sorption 96. Towards sustainable technologies. Proceedings./ Ab-sorption 96. Vers les technologies durables. Comptes rendus.
  • Publication date: 1996/09/17
  • Document available for consultation in the library of the IIR headquarters only.

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