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IIR document

High efficiency air cooled heat exchangers for CO2 applications.

Number: pap. n. 326

Author(s) : FILIPPINI S., MERLO U., MARIANI G., et al.

Summary

CO2 is often proposed as a radical solution to eliminate the greenhouse effect caused by halogenated hydrocarbons belonging to the HFC category. Even though the direct contribution of CO2 is practically zero, the indirect effect would be increased if the CO2 refrigeration cycles were less efficient than traditional ones (lower COP), due to larger electricity consumption bringing about larger emissions of CO2 and of other pollutants from power stations. The appropriate choice of heat exchanger technology is a fundamental condition for obtaining COP values form CO2 cycles allowing for a real reduction of the greenhouse effect. However, CO2 is significantly different from all the other halogenated and non-halogenated fluids and it poses peculiar opportunities to heat exchanger designers: their discussion is the subject of this paper, underlining in particular innovative solutions and test laboratory to enhance the heat exchange efficiency and to improve the overall performance of the refrigeration plant.

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Pages: 8

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Details

  • Original title: High efficiency air cooled heat exchangers for CO2 applications.
  • Record ID : 30026406
  • Languages: English
  • Source: Proceedings of the 25th IIR International Congress of Refrigeration: Montréal , Canada, August 24-30, 2019.
  • Publication date: 2019/08/24
  • DOI: http://dx.doi.org/10.18462/iir.icr.2019.0326

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