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Lego plant uses water as primary refrigerant.

Type of article: Article

Summary

The process is based on an open cycle, without physical separation between primary and secondary refrigerant, therefore there is no heat exchange surface. Water at 13.5 deg C enters the evaporator where it expands to around 11 mbar, corresponding to a saturation temperature of 8 deg C. Some 1% of the water evaporates, while the remaining 99% is chilled to 9 deg C. The evaporated water becomes the primary refrigerant. The water vapour is compressed in a two-stage turbo compressor system with intermediate cooler. In the condenser, the water vapour is condensed directly on the injected cooling tower water, which is thus heated 4 to 5 K to a temperature very close to the condensing temperature.

Details

  • Original title: Lego plant uses water as primary refrigerant.
  • Record ID : 1996-3736
  • Languages: English
  • Publication date: 1996/02
  • Source: Source: Refrig. Air Cond.
    vol. 99; n. 1175; 15.
  • Document available for consultation in the library of the IIR headquarters only.

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