COLD START-UP WITH A TEMPERATURE COEFFICIENT INITIALLY POSITIVE
Technical Report
·
OSTI ID:4212823
Results of simulated coid start-ups of a typical light water moderated power reactor with a temperature coefficient that is positive at room temperature are presented. The conditions under which such start-ups could be accomplished safely are discussed. In the simulation the temperature coefficient is varied directly with the average coolant temperature in the rsactor, becoming more negative as the coolant temperature increases. Various rates of change of the temperature coefficient were studied, with initial coefficients ranging from -0.1 x 10/sup -4/ to + 0.6 x 10/sup -4/ delta k/ deg F. Factors limiting the power, coolant temperatures, and coolant volume expansion are discussed. It is concluded from the typical start-up studied that the rate of average coolant temperature rise would be the limiting factor during a cold start-up. (auth)
- Research Organization:
- Westinghouse Electric Corp. Bettis Plant, Pittsburgh
- DOE Contract Number:
- AT(11-1)-GEN-14
- NSA Number:
- NSA-14-001145
- OSTI ID:
- 4212823
- Report Number(s):
- WAPD-TM-10(Del.)
- Country of Publication:
- United States
- Language:
- English
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