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Test facility for a multiejector R744 refrigeration system.

Number: pap. ID70

Author(s) : BANASIAK K., HAFNER A., HADDAL O., et al.

Summary

A test facility for experimental investigation of a new multiejector R744 refrigeration system was designed and manufactured. An expansion/pre-compression block consisting of multiple ejectors was introduced into the parallel compression system, partially substituting for a classic high pressure valve. The ejectors, operated for both vapor and liquid pre-compression, in parallel or individually, entrain refrigerant from the suction accumulator at low pressure (28 bar - 32 bar) and transport it to the liquid receiver at the intermediate pressure (34 bar - 38 bar). The preliminary experimental results reported individual ejector efficiencies up to 30%, dependent on operational conditions (discharge pressure and temperature, pressure lift, evaporation pressure).

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Pages: 8 p.

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Details

  • Original title: Test facility for a multiejector R744 refrigeration system.
  • Record ID : 30012652
  • Languages: English
  • Source: 11th IIR Gustav Lorentzen Conference on Natural Refrigerants (GL2014). Proceedings. Hangzhou, China, August 31-September 2, 2014.
  • Publication date: 2014/08/02

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