Method and apparatus for reducing the power level in a nuclear reactor during temperature transient
Description
Devices for moving control rods with respect to reactor cores are described. Objects of the present invention include prevention of damage to a reactor and its surroundings during a temperature excursion and especially during a loss of flow accident and reduction of the power level in a nuclear reactor in a manner that is directly proportional to the increase in temperature of the primary coolant. Preferably the present invention provides a system that produces a negative temperature coefficient of reactivity in a liquid metal fast breeder reactor and is able to reduce the power level in a nuclear reactor after a loss of flow accident to less than 15 percent of full power without the intervention of any sensing devices or control rod actuators. (U.K.)
Availability note (English)
MF available from INIS under the Report Number.Files
12592672.pdf
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Additional details
Publishing Information
- Imprint Pagination
- 6 p.
- IPC:
- Int. Cl. G21c7/12.
- IPC
- Int. Cl. G21c7/12.
- Patent number
- GB patent document 1573598/A/
INIS
- Country of Publication
- United Kingdom
- Country of Input or Organization
- United Kingdom
- INIS RN
- 12592672
- Subject category
- S21: SPECIFIC NUCLEAR REACTORS AND ASSOCIATED PLANTS;
- Descriptors DEI
- CONTROL ELEMENTS; CONTROL ROD DRIVES; EXCURSIONS; LMFBR TYPE REACTORS; LOSS OF FLOW; REACTOR CONTROL SYSTEMS; REACTOR SAFETY; SPECIFICATIONS; TEMPERATURE COEFFICIENT; TRANSIENT OVERPOWER ACCIDENTS
- Descriptors DEC
- ACCIDENTS; BREEDER REACTORS; CONTROL SYSTEMS; EPITHERMAL REACTORS; FAST REACTORS; FBR TYPE REACTORS; LIQUID METAL COOLED REACTORS; REACTIVITY COEFFICIENTS; REACTOR ACCIDENTS; REACTOR COMPONENTS; REACTORS; SAFETY