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Title: Oak Ridge research reactor quarterly report, January, February, and March of 1976

Abstract

The ORR operated at an average power level of 29.9 Mw for 82.8 percent of the time during January, February, and March of 1976. Two fuel elements were declared spent (58.8 percent average burnup) during the quarter, while twenty-eight new elements were placed in service. Four shim-rod elements were retired from service at an average burnup of 64.4 percent. The reactor was shutdown on nine occasions, one of which was unscheduled. Two end-of-cycle shutdowns accounted for 92.1 percent of the total downtime. The remaining downtime was used principally for refueling and experiment work. Maintenance activities, both mechanical and instrument, were essentially routine in nature. Special tests or measurements completed during the quarter were three calorimeter gamma heating runs made in CP-E5 during the end of Cycle 129 shutdown.

Authors:
;
Publication Date:
Research Org.:
Oak Ridge National Lab., Tenn. (USA)
OSTI Identifier:
7260151
Report Number(s):
ORNL/TM-5623
DOE Contract Number:
W-7405-ENG-26
Resource Type:
Technical Report
Country of Publication:
United States
Language:
English
Subject:
21 SPECIFIC NUCLEAR REACTORS AND ASSOCIATED PLANTS; ORR REACTOR; REACTOR OPERATION; REACTOR COMPONENTS; REACTOR CORES; REACTOR MAINTENANCE; ENRICHED URANIUM REACTORS; MAINTENANCE; OPERATION; REACTORS; TANK TYPE REACTORS; WATER COOLED REACTORS; WATER MODERATED REACTORS; 220600* - Nuclear Reactor Technology- Research, Test & Experimental Reactors

Citation Formats

Hurt, S.S. III, and Lance, E.D. Oak Ridge research reactor quarterly report, January, February, and March of 1976. United States: N. p., 1976. Web. doi:10.2172/7260151.
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Hurt, S.S. III, & Lance, E.D. Oak Ridge research reactor quarterly report, January, February, and March of 1976. United States. doi:10.2172/7260151.
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Hurt, S.S. III, and Lance, E.D. Fri . "Oak Ridge research reactor quarterly report, January, February, and March of 1976". United States. doi:10.2172/7260151. https://www.osti.gov/servlets/purl/7260151.
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@article{osti_7260151,
title = {Oak Ridge research reactor quarterly report, January, February, and March of 1976},
author = {Hurt, S.S. III and Lance, E.D.},
abstractNote = {The ORR operated at an average power level of 29.9 Mw for 82.8 percent of the time during January, February, and March of 1976. Two fuel elements were declared spent (58.8 percent average burnup) during the quarter, while twenty-eight new elements were placed in service. Four shim-rod elements were retired from service at an average burnup of 64.4 percent. The reactor was shutdown on nine occasions, one of which was unscheduled. Two end-of-cycle shutdowns accounted for 92.1 percent of the total downtime. The remaining downtime was used principally for refueling and experiment work. Maintenance activities, both mechanical and instrument, were essentially routine in nature. Special tests or measurements completed during the quarter were three calorimeter gamma heating runs made in CP-E5 during the end of Cycle 129 shutdown.},
doi = {10.2172/7260151},
journal = {},
number = ,
volume = ,
place = {United States},
year = {Fri Oct 01 00:00:00 EDT 1976},
month = {Fri Oct 01 00:00:00 EDT 1976}
}
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Technical Report:
View Technical Report (1.04 MB)
DOI:  10.2172/7260151
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    The ORR operated at an average power level of 29.9 MW for 82.9% of the time during January, February, and March of 1982. The reactor was shut down on nine occasions, four of which were unscheduled. Reactor downtime needed for refueling, maintenance, and checks was normal, with the reactor remaining available for use 88.7% of the time. Maintenance activities, both mechanical and instrument, were essentially routine in nature with the exception of one Reactor Instrumentation and Controls Design Change Memo. In-service inspection completed during the quarter included: (1) examination of the ORR primary coolant strainers and housing, and (2) inspectionmore » of the ORR decay tank.« less

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    The ORR operated at an average power level of 28.7 MW for 73.4 percent of the time during January, February, and March of 1978. Eight new fuel elements were placed in service. The reactor was shut down on sixteen occasions, one of which was unscheduled. Reactor downtime needed for refueling, maintenance and checks was quite low, with the reactor remaining available for operation 88.9 percent of the time. Maintenance activities, both mechanical and instrument were essentially routine in nature. Special tests or measurements completed during the quarter included: (1) reactivity measurement of the Metals and Ceramics Division's (ORR-MFE-1) experiment inmore » CP-C7; (2) flux mapping for core No. 143-B; and (3) calibration of all six shim rods on February 12, 1978 (Appendix A), and calibration of shim rods Nos. 2 through 6 on February 16, 1978.« less

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    The ORR operated at an average power level of 29.9 MW for 91.3% of the time during January, February, and March of 1980. The reactor was shut down on twelve occasions, six of which were unscheduled. Reactor downtime needed for refueling, maintenance and checks was normal, with the reactor remaining available for use 93.7% of the time. Maintenance activities, both mechanical and instrument, were essentially routine in nature with the exception of one Reactor Instrument and Controls Design Change Memo.

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    The ORR was not operated during January, February, and March of 1988. Maintenance activities, both mechanical and instrument, were essentially routine in nature. This paper covers: shutdowns; instrumentation and reactor controls; process system; and experiment facilities, and gaseous-waste filters. 9 tabs.

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