The current operating conditions at 105-DR, because of the recent Ball 3X drop, dictate temporary lower speed-of-control limits. While is si still not expected that this reactor will be limited by the speed-of- control criterion, it is felt that the limit curves have been temporarily sufficiently reduced as to warrant publication of former limits. Limit curves as a function of weighted graphite temperature for the continuous and block discharge schemes are included in this document. The two sources of the reduction in the speed-of-control limit comes from two sources: (1) While the limit is commonly expressed in MW of pile …
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Publisher Info:
General Electric Co., Richland, WA (United States). Hanford Atomic Products Operation
Place of Publication:
Richland, Washington
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Description
The current operating conditions at 105-DR, because of the recent Ball 3X drop, dictate temporary lower speed-of-control limits. While is si still not expected that this reactor will be limited by the speed-of- control criterion, it is felt that the limit curves have been temporarily sufficiently reduced as to warrant publication of former limits. Limit curves as a function of weighted graphite temperature for the continuous and block discharge schemes are included in this document. The two sources of the reduction in the speed-of-control limit comes from two sources: (1) While the limit is commonly expressed in MW of pile power level, it is actually a function of maximum tube power, (2) The poisoning effect of the balls lodged in the stack has been estimated at about 15 mk.
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4 p.
Notes
OSTI as DE94010923; Paper copy available at OSTI: phone, 865-576-8401, or email, reports@adonis.osti.gov
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