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New type of energy efficient heat exchanger for indirectly cooled display cabinets. Laboratory and fields tests.

Number: pap. 28

Author(s) : HAGLUND STIGNOR C., TILJANDER P., LINDBERG U., et al.

Summary

In this study, a completely new type of air-to-liquid heat exchanger, adapted for obtaining good heat transfer performance even at a laminar flow regime on the liquid side has been evaluated in a display cabinet application. The heat exchanger consists of parallel plates, with liquid in every second passage and air in the other passages. Tests were performed with a traditional open vertical display cabinet, first with a traditional finned-tube coil and thereafter with the new type of heat exchanger, both in a climate chamber and thereafter in the field. The results from both tests showed that the liquid inlet temperature could be increased by around 6°C, from the range -8°C - - 7°C with the traditional coil to the range -2°C - - 1°C with the new type of heat exchanger, which can lead to considerable energy savings and operation without the need for defrosting of the heat exchanger.

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Pages: 9

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Details

  • Original title: New type of energy efficient heat exchanger for indirectly cooled display cabinets. Laboratory and fields tests.
  • Record ID : 30023376
  • Languages: English
  • Source: 5th IIR International Conference on Sustainability and the Cold Chain. Proceedings: Beijing, Chine, 6-8 avril 2018
  • Publication date: 2018/04/06
  • DOI: http://dx.doi.org/10.18462/iir.iccc.2018.0028

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