Share

IIR document

Increasing the performances of a CO2 refrigeration system using cool thermal energy storage for subcooling: a supermarket application.

Number: pap. n. 726

Author(s) : BALLOT-MIGUET B., DEJARDINS G., QUARO B., et al.

Summary

The electricity consumption of a supermarket refrigerating plant situated in the south of France has been measured during 8 months. A cool thermal energy storage (CTES) and a CO2 subcooler were added to the full CO2 refrigerating plant. The plant is described, as well as the charge/discharge/subcooling schedule strategy. The objectives of the work were to quantify the energy saving obtained thanks to the CTES and the subcooling. We obtained 23 kWh electricity saving and 2 k€ financial saving, which represents 6% of the annual electricity bill dedicated to medium temperature refrigeration production. The strategy depends on a lot of parameters (supermarket opening hours, outside temperature, electricity tariffs), and the tests showed it is important to review the control (schedule and set points).

Available documents

Format PDF

Pages: 8

Available

  • Public price

    20 €

  • Member price*

    Free

* Best rate depending on membership category (see the detailed benefits of individual and corporate memberships).

Details

  • Original title: Increasing the performances of a CO2 refrigeration system using cool thermal energy storage for subcooling: a supermarket application.
  • Record ID : 30026025
  • Languages: English
  • Source: Proceedings of the 25th IIR International Congress of Refrigeration: Montréal , Canada, August 24-30, 2019.
  • Publication date: 2019/08/24
  • DOI: http://dx.doi.org/10.18462/iir.icr.2019.0726

Links


See other articles from the proceedings (632)
See the conference proceedings

Indexing