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Combined cogeneration and liquid-desiccant system applied in a demonstration building.

Author(s) : LIU X. H., GENG K. C., LIN B. R., et al.

Type of article: Article, Case study

Summary

This article reports on a study of a hybrid HVAC system, consisting of cogenerators, a liquid-desiccant system, vapour-compression and absorption chillers, a gas boiler and storage tanks. The systems were used to meet the power and thermal demands of a 20 000 m2 demonstration building in Beijing, China. Both power produced and waste heat exhausted from the cogenerators are fully used in different stages of the building energy demand according to their energy quality levels, where power is used to meet the electrical load and waste heat is used to regenerate desiccant, drive absorption chiller in summer and heat the building in winter. Compared with a conventional HVAC system, the hybrid system was found to be more energy efficient, needing only two years to recover the extra initial cost. CO2 emissions were reduced by about 40%.

Details

  • Original title: Combined cogeneration and liquid-desiccant system applied in a demonstration building.
  • Record ID : 2005-0946
  • Languages: English
  • Source: Energy Build. - vol. 36 - n. 9
  • Publication date: 2004/09

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