IIR document

Analysis and comparison between different energy consumption performances of a CO2 trans-critical booster system with Modulating Ejectors and parallel compression in various configurations and different climate conditions.

Number: 1060

Author(s) : CORAZZOL C., MUVEGI W., MATTIELLO L., NALINI L.

Summary

In this paper, the performance of a real CO2 trans-critical booster refrigeration system equipped with modulating ejectors and parallel compression has been analyzed. The system can operate in three different configurations: standard booster, Modulating Ejector (EMJ) and parallel compression. Energy consumption and efficiency of the three configurations have been compared in three different climate conditions: Madrid, Athens and Riyadh. For each city, experimental tests have been carried out considering a set of twelve representative temperature profiles, one for each month, and a varying thermal load. The annual energy consumption has been estimated basing on measured data. Results show that the annual energy saving ranges from 10% to 12% considering EMJ over standard booster, with peaks of 20%. Parallel compression compared with standard booster reaches an annual energy saving between 2% and 3% with peak

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Analysis and comparison between different energy consumption performances of a CO2 trans-critical booster system with Modulating Ejectors and parallel compression in various configurations and different climate conditions

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Details

  • Original title: Analysis and comparison between different energy consumption performances of a CO2 trans-critical booster system with Modulating Ejectors and parallel compression in various configurations and different climate conditions.
  • Record ID : 30027996
  • Languages: English
  • Subject: Technology
  • Source: 14th IIR-Gustav Lorentzen Conference on Natural Refrigerants(GL2020). Proceedings. Kyoto, Japon, December 7-9th 2020.
  • Publication date: 2020/12/07
  • DOI: http://dx.doi.org/10.18462/iir.gl.2020.1060

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