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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.
Naozo Hattori, Kenji Hayashi
Nuclear Technology | Volume 72 | Number 1 | January 1986 | Pages 105-116
Technical Paper | Heat Transfer and Fluid Flow | doi.org/10.13182/NT86-A33759
Articles are hosted by Taylor and Francis Online.
An experimental investigation of the friction factor for fully developed turbulent sodium flow in small smooth tubes is presented. The pressure loss for single and double tubes is measured precisely by means of NaK pressure transducers, under several sets of conditions of fluid flow, temperature, and metallic impurity. From the results obtained, it is found that the friction factor-Reynolds number relationships for the small tubes vary appreciably with the operating time of a sodium loop (1260 to 4100 h). The primary cause of the change in these relations is the deposition of metallic particulates on the tube surfaces.
