Results 31 to 40 of about 4,383 (200)

Estimation influence of boric acid drop entrainment to its accumulation in the VVER reactor in the case of accident [PDF]

Nuclear Energy and Technology, 2018
Process of boric acid mass transfer during accidents accompanied with rupture of circulation pipelines in VVER reactors of new generation equipped with passive safety systems are examined.
Andrej V. Morozov, Anna V. Pityk, Sergej V. Ragulin, Azamat R. Sahipgareev, Aleksandra S. Soshkina, Aleksandr S. Shlyopkin   +5 more
doaj   +3 more sources

Tolerant fuel for VVER reactors

Journal of Physics: Conference Series, 2020
Abstract The main factor of destruction of fuel rods in accidents with loss of coolant is associated with the vapor-zirconium reaction occurring between the fuel rod shell and the coolant (water). Improving the reliability of fuel cells can be obtained by modifying or replacing the fuel shell, materials that do not interact with the ...
A Z Alhmoud, V B Kruglov, A B Kruglov, H A Tanash   +3 more
openaire   +1 more source

A methodology for CHF prediction in VVER rod bundles

Nuclear Engineering and Design, 2022
The critical heat flux (CHF) is an important thermal-hydraulic parameter that must be determined during the design of water-cooled reactors to ensure safety of operation. In this paper, a methodology is proposed to predict the CHF in VVER rod bundles. A whole-reactor model of VVER-1000 is implemented in RELAP-SCDAPSIM, and, based on the bundle-average ...
AbdulHameed, Mohamed, Shaaban, Aly, Gamal, Hussein, Elshahat, Ayah   +3 more
openaire   +2 more sources

Role of passive safety systems in prevention and mitigation of severe accidents at nuclear power plants

Trudy Odesskogo Politehničeskogo Universiteta, 2022
Fukushima Daiichi accidents led to the worldwide update of the NPP safety requirements. Particular attention was paid to severe accidents both during the design of new NPP units and during the safety reassessment of existing ones.
Володимир Петрович Кравченко, Максим Павлович Вишемірський   +1 more
doaj   +5 more sources

Les réacteurs russes VVER de troisième génération

, 2016
Les réacteurs nucléaires russes de type VVER ont connu de grandes évolutions et des améliorations constantes depuis maintenant près de 60 ans. Créés à l’origine pour répondre aux besoins en électricité de l’Union Soviétique, ils ont été assez largement ...
Gérard Cognet
core   +1 more source

Geopolitics and Aspirations for Sustainability: Turkey's Emergence as an Energy Hub

Middle East Policy, Volume 33, Issue 1, Page 102-115, Spring 2026.
Abstract Turkey is pursuing three main objectives in the energy sector: enhancing its geopolitical position, expanding its domestic production and renewable energy capacity, and becoming a natural gas hub linking producers from the Middle East, the Caspian region, and Russia to European markets.
Umud Shokri
wiley   +1 more source

Hyper‐Reduced Model Based on the Proper Orthogonal Decomposition and the LU Factorization Applied to the Neutron Diffusion Eigenvalue Problem

International Journal for Numerical Methods in Engineering, Volume 127, Issue 3, 15 February 2026.
ABSTRACT An efficient method for solving large eigenvalue problems efficiently can be developed using hyper‐reduced order models, such as those arising from the LU Proper Orthogonal Decomposition (LUPOD). The LUPOD employs dominant orthogonal modes along with a flexible number of collocation points to establish a reduced scalar product, thereby ...
A. Vidal‐Ferràndiz, A. Carreño, E. Javaloyas, D. Ginestar, G. Verdú   +4 more
wiley   +1 more source

"Full-Core" VVER-1000 calculation benchmark

, 2020
This work deals with the “Full-Core” VVER-1000 calculation benchmark which was proposed on the 26th Symposium of AER [1]. Recently, the calculation benchmarks “Full-Core” VVER-440 [2] and its extension [3] have been introduced in the AER community with ...
Mikoláš, Pavel, Tímr, Jan, Krýsl, V., Bilodid, Y., Kalinin, Yu P., Shcherenko, Anastasia I., Pós, István, Aleshin, Sergey S., Sprinzl, Daniel, Závorka, Jiří, Temesvári, Emese, Bahadir, Tamer   +11 more
core   +1 more source

Securing Bangladesh's Nuclear Future: Is the Regulated Asset Base Model the Answer to Address Project Corruption?

Journal of Critical Infrastructure Policy, Volume 7, Issue 1, Spring/Summer 2026.
ABSTRACT Bangladesh's goal of achieving high‐income status by 2041 requires dependable, low‐emission, and affordable energy. With near‐universal grid coverage and increasing demand, nuclear energy is a strategic asset for long‐term baseload supply. However, the existing financing model, typified by the country's most expensive $12.65 billion Rooppur ...
Hafiz Ahmed
wiley   +1 more source

Brittle fracture resistance of reactor pressure vessel steels in the initial state [PDF]

Nuclear Energy and Technology, 2018
The authors investigate the influence of chemical and structural inhomogeneity on the brittle fracture resistance (BFR) of VVER vessel materials in the initial state (without irradiation).
Nikolay P. Anosov, Vladimir N. Skorobogatykh, Lyubov Yu. Gordyuk, Vasiliy A. Mikheev, Egor V. Pogorelov, Valentin K. Shamardin   +5 more
doaj   +3 more sources