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Single-stage absorption system based on refrigerants R125 and R134a with DMETEG.

Author(s) : LEVY A., JELINEK M., BORDE I.

Summary

Current developments in absorption technology include the research for new working pairs. Two refrigerants tetrafluoroethane (R134a) and pentafluoroethane (R125) in combination with absorbent dimethylether teraethylene glycol (DMETEG) were evaluated for possible utilization. A computerized simulation program was used to compare the different refrigerant-absorbent pairs. The program was based on an advance single-stage cycle containing a jet ejector. The aim of the cycle analysis was to evaluate the highest COP and the lowest circulation ratio, which can be obtained for different generator temperatures under a constant evaporating and cooling water temperatures. The effects of changes in the evaporator and the cooling water temperatures on the COP and the circulation ratio, were also examined at the generator temperature at maximum COP.

Details

  • Original title: Single-stage absorption system based on refrigerants R125 and R134a with DMETEG.
  • Record ID : 2002-1331
  • Languages: English
  • Source: Thermal sciences 2000. Proceedings of the ASME-ZSITS International Thermal Science Seminar + CD-ROM.
  • Publication date: 2000/06/11
  • Document available for consultation in the library of the IIR headquarters only.

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