Share

IIR document

Developing a standard covering design considerations of using flammable refrigerants for cooling ISO thermal containers

Number: 293956

Author(s) : LAWTON R., KÖNIG H.

Summary

Due to GWP limitations on refrigerant gases used in some countries there is pressure to find alternatives to the third-generation HFCs for refrigerated marine containers built to ISO 1496. Many of the alternatives refrigerants are classified by ASHRAE as flammable therefore an ISO standard was developed to try to ensure their safe operation whilst using those fluids.
Flammable refrigerants vary in burning velocity, heat of combustion and toxicology which determine their classification under ISO 817. As HFC-134a and HFC-404A are non-flammable and low toxicity there are few requirements to consider whether a leak or system malfunction could lead to a potentially dangerous atmosphere occurring.
For flammable refrigerants, there is a risk of ignition or decomposition in the event of leakage by either the refrigeration system itself or an external ignition source or hot surface.
This paper examines the requirements for design as defined in ISO 20854 for safe operation, why they are included and how they were arrived at.

Available documents

Format PDF

Pages: 7

Available

  • Public price

    20 €

  • Member price*

    Free

* Best rate depending on membership category (see the detailed benefits of individual and corporate memberships).

PowerPoint version

Pages: 18

Available

  • Public price

    5 €

  • Member price*

    Free

* Best rate depending on membership category (see the detailed benefits of individual and corporate memberships).

Details

  • Original title: Developing a standard covering design considerations of using flammable refrigerants for cooling ISO thermal containers
  • Record ID : 30027602
  • Languages: English
  • Subject: HFCs alternatives
  • Source: 6th IIR International Conference on Sustainability and the Cold Chain. Proceedings: Nantes, France, August 26-28 2020
  • Publication date: 2020/08/26
  • DOI: http://dx.doi.org/10.18462/iir.iccc.2020.293956
  • Document available for consultation in the library of the IIR headquarters only.

Links


See other articles from the proceedings (84)
See the conference proceedings

Indexing