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A study on carbon dioxide cycle architectures for light-commercial refrigeration systems

Authors
  • Montagner, G.P.
  • Melo, C.1, 2, 3
  • 1 POLO National Institute of Science and Technology in Refrigeration and Thermophysics
  • 2 Department of Mechanical Engineering
  • 3 Federal University of Santa Catarina
Type
Published Article
Journal
International Journal of Refrigeration
Publisher
Elsevier
Publication Date
Jan 01, 2014
Accepted Date
Feb 08, 2014
Identifiers
DOI: 10.1016/j.ijrefrig.2014.02.001
Source
Elsevier
Keywords
License
Unknown

Abstract

•The flash gas chamber design increased the system coefficient of performance by 15%.•The thermostatic expansion valve design was unable to properly adjust the discharge pressure.•The dual-stage expansion design precisely controlled the discharge pressure and the superheating.•The coefficient of performance increased by 28% when an internal heat exchanger was added to the system.

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