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IIR document

Ageing of insulated marine containers.

Number: pap. n. 1695

Author(s) : LAWTON R., RHODES C., MYNOTT T.

Summary

Refrigerated marine containers are insulated with expanded polyurethanes foam. This foam has excellent structural and thermal insulation properties which is fundamental and key to the containers’ design. Due to environmental regulations, foam expanding agents such as CFC’s HCFC’s and now HFC’s have been gradually and sequentially banned. Currently, the polyurethane foam expanding agent most commonly utilised is cyclopentane; like its predecessors it gradually leaks from the foam causing an increase in thermal conductivity known as “ageing”. Ageing data for containers insulated with polyurethane foam expanded with cyclopentane is presented over a number of years for both 40’ and 20’ containers. An estimate is made of the increased energy consumption commensurate with this increase over the lifetime of the container. The results of this investigation has been incorporated into the latest version of standard ISO 1496-2 which now contains an informative annex describing this ageing.

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Pages: 6

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Details

  • Original title: Ageing of insulated marine containers.
  • Record ID : 30026290
  • 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.2019.1695

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