KER-3 Operating Report: Test No. K-3-10 -PT-IP 288-A, Test No. K-3-11 -PT-IP-317-A -PT-IP-315-A

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The loop was charged October 30, 1959 with seven 12-inch Natural Uranium Zircaloy-2 clad 7-rod clusters. The test was primarily for the new hot-headed method of end closure used on these elements. The loop was pressure tested at 4000 psi after it was charged. Initially the loop was held at low-temperature to study the buildup of oxygen (presumably from radiolytic decomposition of water). After startup the neutron activity held at slightly above normal but the strainer gamma activity was exceptionally low. Frequent additions of LiOH bombs were necessary to maintain the pH at 10.0 (previously it was 4--5 pH but … continued below

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4 p.

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Sharp, F. E. July 13, 1960.

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  • Hanford Atomic Products Operation
    Publisher Info: General Electric Co., Richland, WA (United States). Hanford Atomic Products Operation
    Place of Publication: Richland, Washington

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The loop was charged October 30, 1959 with seven 12-inch Natural Uranium Zircaloy-2 clad 7-rod clusters. The test was primarily for the new hot-headed method of end closure used on these elements. The loop was pressure tested at 4000 psi after it was charged. Initially the loop was held at low-temperature to study the buildup of oxygen (presumably from radiolytic decomposition of water). After startup the neutron activity held at slightly above normal but the strainer gamma activity was exceptionally low. Frequent additions of LiOH bombs were necessary to maintain the pH at 10.0 (previously it was 4--5 pH but was raised to pH 10 for this test.) After the temperature was raised to operating conditions the pH held nicely at 10. On November 16, 1959, the heat exchanger exit temperature thermocouple blew out resulting in depressurization of the loop and a reactor scram. Repairs were made during the outage and the loop was returned to normal operation. Eleven scrams occurred during the test period caused by 105-KE or 1706-KER.

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4 p.

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OSTI as DE94012830; Paper copy available at OSTI: phone, 865-576-8401, or email, reports@adonis.osti.gov

Other Information: DN: Declassified

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  • July 13, 1960

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  • Nov. 3, 2018, 11:47 a.m.

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  • Nov. 12, 2024, 9:51 p.m.

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Sharp, F. E. KER-3 Operating Report: Test No. K-3-10 -PT-IP 288-A, Test No. K-3-11 -PT-IP-317-A -PT-IP-315-A, report, July 13, 1960; Richland, Washington. (https://digital.library.unt.edu/ark:/67531/metadc1318818/: accessed July 14, 2026), University of North Texas Libraries, UNT Digital Library, https://digital.library.unt.edu; crediting UNT Libraries Government Documents Department.

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