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Environmental-friendly heat exchangers.

Author(s) : ZOGGIA F., FILIPPINI S., PERFETTI C., et al.

Summary

Alternative solutions to traditional HFC plants, like indirect systems (making use of brine coolers) and natural refrigerants, are playing an increasing role in the refrigeration industry. Brine coolers are a well-known technology, but a more widespread diffusion can be anticipated if better heat transfer capabilities can be achieved, reducing coolers size and cost, as well as pumping energy consumption. On another side, the novel technology of CO2 cycles is characterized by excellent environmental performance, having negligible direct GWP. However large attention must be paid to the indirect GWP, to obtain with CO2 comparable annual COP of HFC or ammonia plants or, if possible, better. Hence, the availability of efficient, reliable and affordable heat exchangers is a relevant issue for CO2 applications, as well as for brine coolers. To discuss the above subjects, this paper includes two separate sections, regarding (i) the utilization of microfin tubes in brine coolers and (ii) air cooled heat exchangers for CO2 direct cycles.

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Pages: 2006-2

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Details

  • Original title: Environmental-friendly heat exchangers.
  • Record ID : 2007-1490
  • Languages: English
  • Source: 7th IIR-Gustav Lorentzen Conference on Natural Working Fluids (GL2006). Proceedings
  • Publication date: 2006/05/29

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