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IIR document

Air cooled heat exchangers for CO2 refrigeration cycles.

Number: pap. ID: 295

Author(s) : FILIPPINI S., MERLO U.

Summary

The paper describes the main parameters affecting CO2 cycle performance, focusing on the contribution that can be made by the efficient design of ventilated air heat exchangers. CO2 properties are quite different from current HFC properties and pose important problems for designers because of the high pressure operating conditions. On the other hand, its high heat exchange characteristics, good thermo-physical properties and low pressure drop open up interesting possibilities in the definition of high performance heat exchangers. The article illustrates first the key points of air cooler unit design, the differences compared to HFC products, and underlines the necessity of having low internal volume. DX air coolers and pump air coolers are analysed.

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Pages: 8 p.

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Details

  • Original title: Air cooled heat exchangers for CO2 refrigeration cycles.
  • Record ID : 30001101
  • Languages: English
  • Source: Proceedings of the 23rd IIR International Congress of Refrigeration: Prague, Czech Republic, August 21-26, 2011. Overarching theme: Refrigeration for Sustainable Development.
  • Publication date: 2011/08/21

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