A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Severe pitting attack of pile process tubes and slugs
Between October 1951 and October 1952 the F Pile of Hanford Atomic Products Operation was forced a number of times to stop operation temporarily because water leaks in the process tubes allowed large amounts of cooling water to enter the graphite moderator. Beginning in June 1952, a different phenomenon was observed. A leaking tube was discovered at F Pile that was not stuck in the channel. Furthermore, by a new technique using a dye solution, the hole in the tube was found. Large, discrete pits were found on the inside wall of this tube at the point where it leaked. The leak was through a pin hole at the base of one of the pits. Attack on this tube obviously started inside the tube and worked its way out. Most of the tubes that have been removed from F Pile between June 1952 and September 1952, and both leaking tubes what were found in D Pile, were attacked from the inside. Slug jackets have been found in F Pile with a type of pitting attack that may be caused by the same phenomenon. This slug jacket pitting attack, which is more severe than any that has been encountered to date, occurred concurrently with the pitting attack on the tubes. A description of the nature of this pitting attack and hypothesis to explain its causes are described in this report. (ERA citation 16:020205)
Severe pitting attack of pile process tubes and slugs
Between October 1951 and October 1952 the F Pile of Hanford Atomic Products Operation was forced a number of times to stop operation temporarily because water leaks in the process tubes allowed large amounts of cooling water to enter the graphite moderator. Beginning in June 1952, a different phenomenon was observed. A leaking tube was discovered at F Pile that was not stuck in the channel. Furthermore, by a new technique using a dye solution, the hole in the tube was found. Large, discrete pits were found on the inside wall of this tube at the point where it leaked. The leak was through a pin hole at the base of one of the pits. Attack on this tube obviously started inside the tube and worked its way out. Most of the tubes that have been removed from F Pile between June 1952 and September 1952, and both leaking tubes what were found in D Pile, were attacked from the inside. Slug jackets have been found in F Pile with a type of pitting attack that may be caused by the same phenomenon. This slug jacket pitting attack, which is more severe than any that has been encountered to date, occurred concurrently with the pitting attack on the tubes. A description of the nature of this pitting attack and hypothesis to explain its causes are described in this report. (ERA citation 16:020205)
Severe pitting attack of pile process tubes and slugs
M. Lewis (author) / R. A. Rohrbacher (author)
1953
86 pages
Report
No indication
English
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