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Design and experimental analysis of a carbon dioxide transcritical chiller for commercial refrigeration.

Author(s) : BERNABEI M., CECCHINATO L., CHIARELLO M., et al.

Summary

The development of refrigerating units operating on natural working fluids is a topical challenge for refrigeration companies. Carbon dioxide is an interesting solution for commercial refrigeration and in perspective for air-conditioning systems. Because of its low critical temperature, CO2 main drawback is its low cycle energy efficiency. Thus the refrigerating machines operate according to a transcritical cycle, also for relatively low temperature of the hot sink. SCM Frigo carried out a research project concerning the development of a carbon dioxide transcritical chiller for refrigerating propylene glycol down to -8°C supply temperature. The aim of the project was at optimising the cycle energy efficiency while assuring reliable operation and simple management of the unit. To develop a highly effective unit, outstanding component manufacturers were involved. The whole project was coordinated by the University of Padova. Several experimental tests were carried out, testing the chiller at external temperatures ranging from 16 to 35°C.

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Pages: 2008-2

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Details

  • Original title: Design and experimental analysis of a carbon dioxide transcritical chiller for commercial refrigeration.
  • Record ID : 2009-0206
  • Languages: English
  • Source: 8th IIR-Gustav Lorentzen Conference on Natural Working Fluids (GL2008)
  • Publication date: 2008/09/07

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