Share

IIR document

Practical guidance for optimization of defrost.

Number: pap. 11

Author(s) : LOVE R. J., JEKEL T. B., REINDL D. T., et al.

Summary

Regular defrost of air cooling coils is necessary to restore cooling performance but creates parasitic load on the refrigeration system and can result in short term temperature fluctuations in the refrigerated space. A new method that directly links defrost heat load to latent loads in the refrigerated facility and likely melt water flows is presented. Practical guidance, that is informed by both this method and measurements for actual systems, is provided for the optimization of defrost frequency and duration. Key aspects are: to have a method that terminates defrost once the coil is free of frost and there is no more melt water to avoid unproductive heating; and to vary the frequency of defrost to match the latent load the facility experiences so there is a similar frost loading at the start of each defrost.

Available documents

Format PDF

Pages: 9

Available

  • Public price

    20 €

  • Member price*

    Free

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

Details

  • Original title: Practical guidance for optimization of defrost.
  • Record ID : 30023351
  • 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.2018.0011

Links


See other articles from the proceedings (72)
See the conference proceedings

Indexing