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Nuclear Science and Engineering
Fusion Science and Technology
Advanced reactors: Now comes the hard part
Designing a reactor is complicated but building one may be harder. Even companies that have had lots of practice haven’t always done it well. And all the power reactors in service today were built by companies that had years of experience in other kinds of big steam-electric power plants. In contrast, some of the creative new designs now moving toward commercialization come from start-ups that have never built anything at all. How should they prepare?
Robert C. Cook
Fusion Science and Technology | Volume 51 | Number 4 | May 2007 | Pages 559-563
Technical Paper | dx.doi.org/10.13182/FST07-A1444
Articles are hosted by Taylor and Francis Online.
In this paper we show that the ambient temperature measured leakage time constant, RT, is related to the leakage at cryogenic temperature, RC, byRC = 0.23DTVsh/RTwhere DT is the density of cryogenic DT vapor, and Vsh is the internal volume of the shell. We then calculate the size of voids that may result from leakage at the Be/DT interface, depending upon the number of leakage sites and RT. Even for the slowest leakers the potential void growth is excessive. Reasons that voids have not been seen in DT layering experiments to date include the lack of a technique to see isolated micronish bubbles, however possible mechanisms preventing void formation are also discussed.