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NRC looks to leverage previous approvals for large LWRs
During this time of resurging interest in nuclear power, many conversations have centered on one fundamental problem: Electricity is needed now, but nuclear projects (in recent decades) have taken many years to get permitted and built.
In the past few years, a bevy of new strategies have been pursued to fix this problem. Workforce programs that seek to laterally transition skilled people from other industries, plans to reuse the transmission infrastructure at shuttered coal sites, efforts to restart plants like Palisades or Duane Arnold, new reactor designs that build on the legacy of research done in the early days of atomic power—all of these plans share a common throughline: leveraging work already done instead of starting over from square one to get new plants designed and built.
W. F. Pasedag, J. L. Gallagher
Nuclear Technology | Volume 10 | Number 4 | April 1971 | Pages 412-419
Technical Paper | Symposium on Reactor Containment Spray System Technology / Reactor | doi.org/10.13182/NT71-A16250
Articles are hosted by Taylor and Francis Online.
An alternate method to that of representing the drop size spectrum by a mean drop diameter in an iodine removal analysis of the containment spray system is presented. A discrete drop size distribution, which is obtained from a fit of a continuous distribution function to the drop size spectrum observed for the nozzles employed in the spray sys tem is used. A model for the calculation of the changes in this distribution due to drop coalescence and condensation of steam on the spray drops is derived. The results obtained from this analysis show that consideration of the drop size spectrum, condensation, and coalescence in the analysis of the spray system does not degrade the iodine removal effectiveness calculated for a typical Westinghouse reactor containment.
