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Double effect absorption cycles for air-conditioning using alcohol-polyglycol ethers systems.

Author(s) : VALLES M., BOER D., CORONAS A.

Summary

Organic working pairs, with Tetraethyleneglycol Dimethylether (TEGDME) as absorbent and Methanol or Trifluoroethanol (TFE) as refrigerants can offer advantages compared to the water-lithium bromide and ammonia-water working pairs. Their benefits are: low corrosion, thermal stability, moderate pressure levels, solubility in the whole range of concentration, and freezing point of the refrigerant lower than 0 deg C. Associated to a compression-absorption cycle based on a double effect cycle high performances can be obtained using these working pairs, in terms of COP and the primary energy ratio primary energy, and a wide operating range. These COP are compared with those of water-lithium-bromide. A prototype was built and tested.

Details

  • Original title: Double effect absorption cycles for air-conditioning using alcohol-polyglycol ethers systems.
  • Record ID : 1998-0280
  • Languages: English
  • Source: Heat pumping technologies towards the next century: applications and markets. Proceedings of the 5th IEA Conference.
  • Publication date: 1996/09/22
  • Document available for consultation in the library of the IIR headquarters only.

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