Radial Temperature Profile of Sodium Pool Boiling Heater Assembly

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The radial temperature around a sodium reactor heater assembly submerged in water is calculated using a model of the heater cross section found by conformal mapping. Thermocouple readings were also analyzed. When the heat flux is 5 x 10/sup 5/ Btu/hr-ft/sup 2/, a radial temperature drop of about 680 deg C across the center of the thermocouple well is calculated and found to be within 6% of the experimental value. Since most of this drop is across the 0.001-in. helium gap between the heater and its sleeve, it is concluded that the thermocouple will have to be bonded to the … continued below

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8 p.

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Cappel, H. H. February 22, 1960.

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This report is part of the collection entitled: Office of Scientific & Technical Information Technical Reports and was provided by the UNT Libraries Government Documents Department to the UNT Digital Library, a digital repository hosted by the UNT Libraries. It has been viewed 27 times. More information about this report can be viewed below.

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The radial temperature around a sodium reactor heater assembly submerged in water is calculated using a model of the heater cross section found by conformal mapping. Thermocouple readings were also analyzed. When the heat flux is 5 x 10/sup 5/ Btu/hr-ft/sup 2/, a radial temperature drop of about 680 deg C across the center of the thermocouple well is calculated and found to be within 6% of the experimental value. Since most of this drop is across the 0.001-in. helium gap between the heater and its sleeve, it is concluded that the thermocouple will have to be bonded to the sleeve for dependable reading of true sleeve temperature. Drawings of the heater assembly and thermocouple are given. (D. L. C.)

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8 p.

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Other Information: Orig. Receipt Date: 31-DEC-60

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Office of Scientific & Technical Information Technical Reports

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  • February 22, 1960

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  • Sept. 16, 2016, 12:32 a.m.

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  • Nov. 24, 2024, 11:37 p.m.

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Cappel, H. H. Radial Temperature Profile of Sodium Pool Boiling Heater Assembly, report, February 22, 1960; Canoga Park, California. (https://digital.library.unt.edu/ark:/67531/metadc864642/: accessed May 21, 2025), University of North Texas Libraries, UNT Digital Library, https://digital.library.unt.edu; crediting UNT Libraries Government Documents Department.

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