Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Rime icing on bundled conductors
Abstract With the increase of electric demand and development of high voltage technology, bundled conductors are used more frequently in new power line networks. Ice load on conductors is a major structural design criterion of power lines, and icing on bundled conductors is different from that on a single conductor because of the shadowing effect by the windward conductor. In this paper, rime icing on bundled conductors was simulated and the results were compared with that on a single conductor. The results show that the ice mass of leeward conductor is usually smaller to a degree that depends on the angle and distance between the windward conductor and the leeward conductor. Icing on several different bundle geometries was simulated, which allows the selection of the optimum bundle arrangement in regard to icing. We also made icing experiments simulating bundled conductors in an icing wind tunnel. The experimental results show a good agreement with the results of numerical simulations.
Highlights Ice accretion on bundled conductors was simulated and studied experimentally. Ice accretion on a windward conductor is the same as that on a single conductor. Ice accretion on a leeward conductor is usually smaller than that on a single conductor. For accurate results, the model of icing on bundled conductor is recommended.
Rime icing on bundled conductors
Abstract With the increase of electric demand and development of high voltage technology, bundled conductors are used more frequently in new power line networks. Ice load on conductors is a major structural design criterion of power lines, and icing on bundled conductors is different from that on a single conductor because of the shadowing effect by the windward conductor. In this paper, rime icing on bundled conductors was simulated and the results were compared with that on a single conductor. The results show that the ice mass of leeward conductor is usually smaller to a degree that depends on the angle and distance between the windward conductor and the leeward conductor. Icing on several different bundle geometries was simulated, which allows the selection of the optimum bundle arrangement in regard to icing. We also made icing experiments simulating bundled conductors in an icing wind tunnel. The experimental results show a good agreement with the results of numerical simulations.
Highlights Ice accretion on bundled conductors was simulated and studied experimentally. Ice accretion on a windward conductor is the same as that on a single conductor. Ice accretion on a leeward conductor is usually smaller than that on a single conductor. For accurate results, the model of icing on bundled conductor is recommended.
Rime icing on bundled conductors
Qing, He (Autor:in) / Jian, Zhang (Autor:in) / Mengyan, Deng (Autor:in) / Dongmei, Du (Autor:in) / Makkonen, Lasse (Autor:in) / Tiihonen, Mikko (Autor:in)
Cold Regions, Science and Technology ; 158 ; 230-236
27.08.2018
7 pages
Aufsatz (Zeitschrift)
Elektronische Ressource
Englisch
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