Strengthening nuclear reactor safety and analysis

D'Auria, Francesco Saverio; Debrecin, Nenad; Glaeser, H.

doi:10.1016/j.nucengdes.2017.09.008

Cited by 23 publications

(10 citation statements)

References 7 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Thus, an ambitious proposal is at the basis of the effort leading to the present paper, D'Auria et al 2017, see also D'Auria et al 2015: an innovative vision for NRS is proposed by cross-connecting fundamental safety-to-design-oriented issues and recent research findings; an even thin bridge is created between established and perspective competences, possibly contributing to the awareness of young scientists within a bright future for nuclear technology. More in detail, a risk-informed technological safety barrier is discussed, D'Auria et al 2018, with the purposes of:…”

Section: Introductionmentioning

confidence: 91%

The technological challenge for current generation nuclear reactors

D'Auria¹,

Debrecin²,

Glaeser³

2019

NUCET

View full text Add to dashboard Cite

The present paper deals with the proposal of an additional safety barrier for the class of large (1000 MWe or more) Light Water Reactors (LWR) now in operation, in construction, or under design. Emphasis is given to the motivations or the needs for the barrier. Two main parts of the paper can be distinguished. The following topics are discussed in the former part (section 2): (a) the weakness of the barrier constituted by the current design of nuclear fuel; (b) the continuously increasing complexity of the system, with main reference to the Instrumentation and Control (I&C); (c) the role that the Large Break Loss of Coolant Accident (LBLOCA) had for arriving at the current layout of the Reactor Coolant System (RCS). Furthermore avoiding the severe accidents in 1979, 1987 and 2011, is at the basis of the proposal. In the latter part (sections 3 and 4), the elements of the proposed technological safety barrier are discussed: the As-Low-As-Reasonably-Achievable (ALARA) principle, the Best Estimate Plus Uncertainty (BEPU) approach, the Extended Safety Margin Detection (E-SMD) hardware, the Emergency Rescue Team (ERT) strategy (or a virtual entity for the reactor) and the Independent Assessment (IA) concept. The additional safety barrier, although not demonstrated in the paper, is expected to reduce for a factor in the range 10–1000 the probability of core melt and to have a cost in the order of 1% the cost of a nuclear reactor unit.

show abstract

Section: Introductionmentioning

confidence: 91%

The technological challenge for current generation nuclear reactors

D'Auria¹,

Debrecin²,

Glaeser³

2019

NUCET

View full text Add to dashboard Cite

show abstract

“…An ac tiv ity line started with the pub li ca tion of [39] and has been furtherly pur sued, [42,43]. Bar ri ers to the re lease of ra dio ac tive fis sion prod ucts can be seen as con cen tric cir cles (in di cated be low as Bi with 'i' from 0 to 5): -B0 is the in trin sic bar rier con sti tuted by the sintered UO2 pow der -some tech nol o gists never rec og nized this as an ac tual bar rier (this is why the '0' in dex is adopted).…”

Section: An In No Va Tive Safety Bar Riermentioning

confidence: 99%

The Best Estimate Plus Uncertainty approach in nuclear reactor safety and licensing: Brief history and the elements after licensing

Francesco

Giorgio

2019

Nucl Technol Radiat Prot

View full text Add to dashboard Cite

The best es ti mate plus un cer tainty is, at the same time, an ap proach, a pro ce dure and a framework in nu clear ther mal-hy drau lics and nu clear re ac tor safety and li cens ing. The mo ti va tion at the ba sis of the best es ti mate plus un cer tainty is the lack of knowl edge in the ar eas of sin gle and, mainly, two-phase tran sient ther mal-hy drau lics. In other terms and in tro duc ing some sim pli fi ca tions, the in suf fi cient knowl edge of tur bu lence im poses the de sign of roadmaps for the ap pli ca tion of im per fect (ther mal-hy drau lic) mod els to the eval u a tion of de sign fea tures and of safety for com plex tech no log i cal in stal la tions or sys tems like the nu clear power plants and, more spe cif i cally, the wa ter cooled nu clear re ac tors. Fur ther more, the le gal coun ter part of nu clear re ac tor safety, or the li cens ing, is con cerned: there fore the best es ti mate plus un certainty must ac count for rules and reg u la tions de rived from the fun da men tal radioprotection prin ci ple which im poses the minimization of the im pact of ra di a tions upon hu mans and the en vi ron ment un der any cir cum stance. In the pres ent pa per, the key el e ments of the ap proach are iden ti fied and char ac ter ized. These shall be seen as the sup port for a con sis tent ap pli ca tion of ther mal-hy drau lics to the de sign and safety of wa ter-cooled nu clear re ac tors. Key words: best es ti mate, un cer tainty eval u a tion, best es ti mate plus un cer tainty, li cens ing pro cess, val i da tion, scal ing F. S. D'Auria, et al.: Best Es ti mate Plus Un cer tainty Ap proach in Nu clear Re ac tor .

show abstract

“…Each innovation imparts a few dangers and the nuclear technology is no aberration. As a rule, Generation III and Generation III+ Nuclear plants have been planned with sufficient wellbeing frameworks that could limit the likelihood of radiation discharge from the mishaps; uncommonly, the Fukushima atomic mischance demonstrated to us the need of a thorough atomic catastrophe administration program [40][41][42]. Bangladesh government has considered the issue of atomic crisis readiness genuinely and wants to fortify capacity of regulatory bodies in an appropriate manner.…”

Section: Preparation For Emergencymentioning

confidence: 99%

Legal and Regulatory Development of Nuclear Energy in Bangladesh

et al. 2018

View full text Add to dashboard Cite

The adequacy of legal and regulatory framework relating to nuclear energy in Bangladesh has sparked many questions since the government took the formal decision to establish a nuclear power plant (NPP) at Rooppur. Consequently, the government has taken some measures to make a comprehensive and robust framework to ensure safe and secure nuclear energy production in the country. Even though these initiatives are highly appreciable, there remain certain regulatory concerns which this paper has attempted to reflect. Therefore, the objective of this paper is to showcase the recent legal and regulatory development of Bangladesh in relation to nuclear energy and to recommend further developments. The study was based on secondary sources where a doctrinal research was carried out to solve particular research questions. The safety and security of the Rooppur Nuclear Power Plant will frankly rely on how the government of Bangladesh plans and learns to implement, design, safeguard, exchange and further develop nuclear energy related knowledge and talent around the country.

show abstract

Strengthening nuclear reactor safety and analysis

Cited by 23 publications

References 7 publications

The technological challenge for current generation nuclear reactors

The technological challenge for current generation nuclear reactors

The Best Estimate Plus Uncertainty approach in nuclear reactor safety and licensing: Brief history and the elements after licensing

Legal and Regulatory Development of Nuclear Energy in Bangladesh

Contact Info

Product

Resources

About