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Developing a new regulatory framework for advanced reactors: Update on Part 53
White
The American Nuclear Society’s Risk-informed, Performance-based Principles and Policy Committee (RP3C) on March 29 held another presentation in its monthly Community of Practice (CoP) series. The presenter, Patrick White with the Nuclear Innovation Alliance (NIA), talked about the current status of efforts to develop a new regulatory framework for advanced reactors—known as 10 CFR Part 53 or simply Part 53. White serves as the research director of the NIA, where he leads their research as well as analysis-based stakeholder and policymaker engagement and education. White’s March 29 presentation is publicly available on YouTube and at ANS’s publication platform Nuclear Science and Technology Open Research (NSTOR).
RP3C chair N. Prasad Kadambi opened the CoP with brief introductory remarks about the RP3C before he welcomed White as the session’s presenter.
White covered three main topics: the history of the existing regulatory frameworks for new reactors, progress to date on the development of the Part 53 rule for advanced reactors, and the current status and next steps for the Part 53 rulemaking process.
Kazuhisa Yuki, Makoto Kawamoto, Munehito Hattori, Koichi Suzuki, Ken-ichi Sunamoto, Akio Sagara
Fusion Science and Technology | Volume 68 | Number 3 | October 2015 | Pages 715-719
Technical Note | Proceedings of TOFE-2014 | doi.org/10.13182/FST15-115
Articles are hosted by Taylor and Francis Online.
In this study, in order to enhance heat transfer performance of helium gas flow for divertor cooling, high thermal conductivity porous media that are copper-particles-sintered ones are introduced as the referential porous media. In order to predict the heat transfer performance of He gas impinging jet flow with the porous medium, nitrogen gas is used as the simulant of helium gas in the pressure range of 0.1 MPa to 0.8 MPa. With the porous medium, the particle introduced is highly size-adjusted one of 1000 μm in diameter and the porosity is almost 30 %. The maximum heat transfer performance is evaluated by numerically simulating temperature field in a heat transfer block based on the measured temperature data. The experiments prove that the heat transfer coefficient of N2 gas impinging jet flow with the porous medium is much higher than that of common impinging jet flow without the porous medium from the view point of not only flow velocity but also pumping power.