"Life" Tests on Internally Water-Cooled Hollow Copper Conductors

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Tests were conducted to determine whether a time limitation exists on the use of internally water-cooled hollow copper conductors operating at densities of up to 330,000 amps/in/sup 2/. Using demineralized water, having a specific resistivity of 4 to 9 x 10/sup 6/ ohm-cm, no indication of a decrease in heat transfer coefficient as a function of time was observed. However, metallographic examination revealed that corrosion--erosion does occur at a slow rate. Using process water there was a time dependent decrease in heat transfer coefficient and a consequent rise in metal temperature. The subsequent use of demineralized water in the same … continued below

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32 pages

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Lewin, J. July 18, 1962.

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Description

Tests were conducted to determine whether a time limitation exists on the use of internally water-cooled hollow copper conductors operating at densities of up to 330,000 amps/in/sup 2/. Using demineralized water, having a specific resistivity of 4 to 9 x 10/sup 6/ ohm-cm, no indication of a decrease in heat transfer coefficient as a function of time was observed. However, metallographic examination revealed that corrosion--erosion does occur at a slow rate. Using process water there was a time dependent decrease in heat transfer coefficient and a consequent rise in metal temperature. The subsequent use of demineralized water in the same conductor again produced stable heat transfer, over the time spans investigated, 192 hours. The maximum total time investigated was 873 hours for one conductor. (auth)

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32 pages

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  • Other Information: Orig. Receipt Date: 31-DEC-62

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  • July 18, 1962

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  • Jan. 22, 2018, 7:23 a.m.

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  • Feb. 4, 2021, 12:05 a.m.

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Lewin, J. "Life" Tests on Internally Water-Cooled Hollow Copper Conductors, report, July 18, 1962; Tennessee. (https://digital.library.unt.edu/ark:/67531/metadc1055463/: accessed May 16, 2024), University of North Texas Libraries, UNT Digital Library, https://digital.library.unt.edu; crediting UNT Libraries Government Documents Department.

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