PRELIMINARY STUDY OF POWER EXCURSIONS FOR POTENTIALLY UNSTABLE REACTORS
Technical Report
·
OSTI ID:4759773
The simultaneous nonlinear differential equations describing the power in a reactor having a prompt positive reactivity coefficient and a delayed negative feedback related to heat conduction are integrated numerically for a limited range of reactor parameters. The calculations show that while such a reactor may be unstable above a certain threshold power, it may undergo a power excursion of limited extent and duration when subjected to a step insertion of reactivity while operating at a sufficiently low power. Stability criteria are examined and, in certain cases, related to the linearized form of the equations. (auth)
- Research Organization:
- United Nuclear Corp. Development Div., White Plains, N.Y.
- NSA Number:
- NSA-17-004257
- OSTI ID:
- 4759773
- Report Number(s):
- UNC-Memo-5039
- Country of Publication:
- United States
- Language:
- English
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