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Experimental evaluation of the performance of an ejector for a single compression multi-temperature CO2 refrigeration unit

Abstract

A novel vapor-compression system concept employing carbon dioxide as the refrigerant is proposed to serve the needs of a typical medium-size refrigerated truck used for multi-temperature (MT and LT) goods delivery. The system design is based on the implementation of an ejector as the only component increasing the refrigerant pressure from the LT evaporation pressure to the MT evaporation pressure, thus allowing the realization of a unit providing cooling effect at two different temperature levels with only one stage of compression. The ejector was experimentally tested in order to evaluate its ability to effectively entrain mass flow rate from very low pressure conditions at the suction nozzle, corresponding to the LT evaporator outlet conditions. In addition, a simple preliminary thermodynamic evaluation of t
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Category

Academic chapter

Language

English

Author(s)

  • F Fabris
  • Ángel Á. Pardiñas
  • Sergio Marinetti
  • Antonio Rossetti
  • Armin Hafner
  • Silvia Minetto

Affiliation

  • SINTEF Energy Research / Termisk energi
  • University of Padua
  • National Research Council
  • Norwegian University of Science and Technology

Year

2022

Publisher

International Institute of Refrigeration

Book

15th IIR-Gustav Lorentzen Conference on Natural Refrigerants - GL2022 - Proceedings - Trondheim, Norway, June 13-15th 2022

ISBN

9782362150456

View this publication at Norwegian Research Information Repository