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Energies 2019, 12(1), 146; https://doi.org/10.3390/en12010146

Improvement of Heat Dissipation Characteristics of Cu Bus-Bar in the Switchboards through Shape Modification and Surface Treatment

1
Advanced Materials & Processing Center, Institute for Advanced Engineering (IAE), Yongin 175-28, Korea
2
Research & Business Cooperation Center, Institute for Advanced Engineering (IAE), Yongin 175-28, Korea
*
Author to whom correspondence should be addressed.
Received: 21 November 2018 / Revised: 24 December 2018 / Accepted: 27 December 2018 / Published: 2 January 2019
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Abstract

In order to improve energy efficiency by increasing heat dissipation performance of bus-bar which distributes the current in high-power switchboard, the heat dissipation effects of the shape modification and surface treatment of Cu bus-bar were studied. The surface temperatures of the conventional plate-type bus-bar, and the improved tunnel-type bus-bar were compared by using electromagnetic and thermal analyses. The optimum thickness of tunnel-type bus-bar and the spacing and array among three bus-bars were calculated; and the surface temperature of tunnel-type bus-bar showed 7.9 °C lower than that of plate-type bus-bar in a 3-phase array condition. In addition, the surface and internal temperatures of the uncoated, CNT (Carbon nanotube)-coated, and BN (Boron nitride)-coated Cu bus-bars were measured with thermal imaging camera and the experiment using a hot plate. It was confirmed that the difference in the internal temperature between uncoated and BN-coated Cu was 19.4 °C. The application of the bus-bar improved from this study might contribute to the increase in power energy efficiency. View Full-Text
Keywords: switchboard system; Cu bus-bar; heat dissipation; electromagnetic thermal analysis; boron nitride coating switchboard system; Cu bus-bar; heat dissipation; electromagnetic thermal analysis; boron nitride coating
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Kim, M.-J.; Bak, S.-H.; Jung, W.-C.; Hur, D.-J.; Ko, D.-S.; Kong, M.-S. Improvement of Heat Dissipation Characteristics of Cu Bus-Bar in the Switchboards through Shape Modification and Surface Treatment. Energies 2019, 12, 146.

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