Direct drive solar coolers

  • P. H. Pedersen*
  • , I. Katic*
  • , J. K. Jensen*
  • , W. B. Markussen*
  • , H. Moeller*
  • , C. Cording*
  • *Corresponding author for this work

    Research output: Chapter in Book/Report/Conference proceedingArticle in proceedingsResearchpeer-review

    305 Downloads (Orbit)

    Abstract

    For many years, photovoltaic power has been used in areas without grid electricity for vaccine refrigerators with a lead-acid battery to store electric energy and to provide the start current for the compressor. The problem with this technology is that the lifetime of the battery is short due to deep discharging of the battery during periods with low irradiance and high ambient temperature. The development of solar “direct drive” refrigerators started in 1999 at Danish Technological Institute (DTI). It was demonstrated that the energy density of ice produced by a compressor is at the same magnitude as the lead-acid battery. As of to date (January 2019), 40 direct drive vaccine coolers from eight different manufacturers are listed on the website of the World Health Organization (WHO), with the technology being one of the fastest growing technologies in the vaccine cold chain. This paper describes the status and new development and discusses how the technology can be used for other purposes in the future. The paper also discuss how remote monitoring can help to prevent destruction of vaccines by early warning and automatic call for service.

    Original languageEnglish
    Title of host publicationProceedings of the 25th IIR International Congress of Refrigeration
    PublisherInternational Institute of Refrigeration
    Publication date2019
    Pages3468-3475
    Article number1024
    ISBN (Electronic)9782362150357
    DOIs
    Publication statusPublished - 2019
    Event25th IIR International Congress of Refrigeration - Montreal, Canada
    Duration: 24 Aug 201930 Aug 2019
    https://icr2019.org/

    Conference

    Conference25th IIR International Congress of Refrigeration
    Country/TerritoryCanada
    CityMontreal
    Period24/08/201930/08/2019
    SponsorFrascold, Tourisme Montréal, Cemafroid Tecnea, Club des Ambassadeurs du Palais des Congres de Montreal, Emerson
    Internet address
    SeriesRefrigeration Science and Technology
    Volume2019-August
    ISSN0151-1637

    Bibliographical note

    Copyright © IIF/IIR
    Published with the authorization of the International Institute of Refrigeration (IIR): www.iifiir.org

    UN SDGs

    This output contributes to the following UN Sustainable Development Goals (SDGs)

    1. SDG 3 - Good Health and Well-being
      SDG 3 Good Health and Well-being
    2. SDG 7 - Affordable and Clean Energy
      SDG 7 Affordable and Clean Energy

    Keywords

    • Direct drive
    • Isobutane
    • Natural refrigerant
    • Photovoltaic
    • Remote monitoring
    • Vaccine coolers

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