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Testing of domestic two-evaporator refrigerators with zeotropic refrigerant mixtures.

Author(s) : ROSE R. J., JUNG D., RADERMACHER R.

Summary

Experimental tests and computer simulation results of Lorenz and Meutzner's two-evaporator refrigerators are reported. Zeotropic refrigerant mixtures were used as working fluids and theoretically shown to increase the COP by 16 to 20% compared to conventional single-evaporator refrigerators. Experimentally, a refrigerator converted to a Lorenz-Meutzner cycle showed a 9% reduction in energy consumption compared to an original production unit of a 557-liter, side-by-side upright refrigerator. Cycling operation of refrigerators degraded the performance of zeotropic refrigerant mixtures 6% more than R12. With further optimization of cycles, heat exchangers, and mixtures, Lorenz and Meutzner's two-evaporator refrigerators can be one of the viable candidates to help alleviate global energy and environmental problems.

Details

  • Original title: Testing of domestic two-evaporator refrigerators with zeotropic refrigerant mixtures.
  • Record ID : 1993-2637
  • Languages: English
  • Source: ASHRAE Transactions 1992. Part 2.
  • Publication date: 1992
  • Document available for consultation in the library of the IIR headquarters only.

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