Modeling power line icing in freezing precipitation

    Research output: Chapter in Book/Report/Conference proceedingConference article in proceedingsScientificpeer-review

    Abstract

    The existing widely used models of power line icing in freezing precipitation are conceptully evaluated. The reasons for the different predictions by die models are pointed out, and it is shown that none of the models is both correct and complete in predicting design glaze ice loads. Improvements to the modelling are proposed and a new comprehensive numerical model is presented. This model includes detailed simulation of icicle growth. The results of the new model show that earlier models underestimate ice loads under certain conditions. Furtherniore, the new model shows, that ice loads formed close to 0 °C may be much higher than those formed at lower temperatures, other conditions being the same.
    Original languageEnglish
    Title of host publication7th International Workshop on Atmospheric Icing of Structures IWAIS '96
    EditorsJ. Laflamme, M. Farzaneh
    Place of PublicationChicoutimi
    Pages195-200
    Publication statusPublished - 1996
    MoE publication typeA4 Article in a conference publication
    Event7th International Workshop on Atmospheric Icing of Structures IWAIS'96 - Chicoutimi, Canada
    Duration: 3 Jun 19966 Jun 1996

    Workshop

    Workshop7th International Workshop on Atmospheric Icing of Structures IWAIS'96
    CountryCanada
    CityChicoutimi
    Period3/06/966/06/96

    Keywords

    • icing
    • freezing precipitation
    • freezing rain
    • glaze
    • ice loads
    • power lines

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  • Cite this

    Makkonen, L. (1996). Modeling power line icing in freezing precipitation. In J. Laflamme, & M. Farzaneh (Eds.), 7th International Workshop on Atmospheric Icing of Structures IWAIS '96 (pp. 195-200).