Share

Recommended by the IIR / IIR document

Critical comparison between single-phase ejector and two-phase ejector in simulated CO2 transcritical commercial cooling system.

Number: 0055

Author(s) : PAEZ A., HABERSCHILL P., REVELLIN R., MICHEL B., TOBALY P., BALLOT-MIGUET B.

Summary

The use of CO2 has become an attractive solution for commercial cooling systems due to its good thermodynamic and environmental properties. However, it has not shown very good performances when used in warm to hot climate conditions. To improve the energy efficiency of those systems, the use of different components has been proposed in the literature. One of the studied approaches is adding an ejector in the refrigeration system.
This article compares the system performances with two different kinds of ejectors: two-phase ejector and single-phase ejector. Moreover, the studied systems use a water gas cooler instead of a classical air gas cooler. The simulation results show that the system performance depends on the water temperature difference and water inlet temperature. The single-phase ejector presents better performance indicators at high secondary evaporator fluid temperature difference and low water inlet temperature. It is the opposite for the two-phase ejector system.

Available documents

Format PDF

Pages: 15 p.

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: Critical comparison between single-phase ejector and two-phase ejector in simulated CO2 transcritical commercial cooling system.
  • Record ID : 30029682
  • Languages: English
  • Subject: Technology
  • Source: 15th IIR-Gustav Lorentzen Conference on Natural Refrigerants (GL2022). Proceedings. Trondheim, Norway, June 13-15th 2022.
  • Publication date: 2022/06/13
  • DOI: http://dx.doi.org/10.18462/iir.gl2022.0055
  • Document available for consultation in the library of the IIR headquarters only.

Links


See other articles from the proceedings (169)
See the conference proceedings

Indexing