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Experimental and numerical investigation on a ejector for CO2 vapor compression systems

Abstract

The use of two-phase flashing ejectors to improve the COP and capacity of CO2 vapor compression systems has become a key research topic in recent years. Although many experimental investigations focused on both the ejector performance and overall energy efficiency have been carried out, further efforts devoted to significantly enhance this device are necessary. In the present paper, the authors experimentally investigated the performance of a two-phase ejector as its main parameters, such as pressure lift and entrainment ratio, are varied. The results are finally compared with a CFD model based on a commercial solver.
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Category

Academic chapter

Language

English

Author(s)

Affiliation

  • SINTEF Energy Research / Termisk energi
  • University of Florence
  • Norwegian University of Science and Technology

Year

2018

Publisher

International Institute of Refrigeration

Book

Proceedings of the 13th IIR Gustav Lorentzen Conference, Valencia, 2018

ISBN

9782362150265

View this publication at Norwegian Research Information Repository