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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.
J. Vetrovec
Fusion Science and Technology | Volume 8 | Number 1 | July 1985 | Pages 1235-1240
Impurity Control and Vacuum Technology | Proceedings of the Sixth Topical Meeting on the Technology of Fusion Energy (San Francisco, California, March 3-7, 1985) | doi.org/10.13182/FST85-A39936
Articles are hosted by Taylor and Francis Online.
The key parameter in calculating the pumping speed of cryopanels is the capture probability. This probability is usually determined by Monte Carlo methods simulating molecular transport of gas. While such methods can be very accurate, they are also rather costly and inflexible. An alternate approach is proposed which uses an analytical method that draws on analogy between radiative heat transfer and molecular gas flow. This analytical method will be described, and it will be shown how it was used to obtain first estimates of pumping speed for the cryopanels for the MFTF-B Neutral Beamlines. The directional dependence of pumping speed is discussed in detail. The results of the calculations are compared to both the Monte Carlo results and experimental data.
