Results 51 to 60 of about 375 (173)

Assessment of the TiO2/water nanofluid effects on heat transfer characteristics in VVER-1000 nuclear reactor using CFD modeling

Nuclear Engineering and Technology, 2015
The most important advantage of nanoparticles is the increased thermal conductivity coefficient and convection heat transfer coefficient so that, as a result of using a 1.5% volume concentration of nanoparticles, the thermal conductivity coefficient ...
Seyed Mohammad Mousavizadeh, Gholam Reza Ansarifar, Mansour Talebi   +2 more
doaj   +1 more source

Pressurized Water Reactor Transient Detection With Artificial Intelligence to Support Reactor Operators

Science and Technology of Nuclear Installations, Volume 2025, Issue 1, 2025.
Nuclear reactors are subject to strict safety standards due to the critical nature of operational safety. Detecting transients as fast and accurately as possible is essential to reactor safety especially to reduce the human error of operators. In order to enhance this process, artificial intelligence (AI) offers strong opportunities.
Ceyhun Yavuz, Senem Şentürk Lüle, Han Zhang   +2 more
wiley   +1 more source

Improved Heat Transfer Capabilities of Nanofluids—An Assessment Through CFD Analysis

Chemical Engineering &Technology, Volume 47, Issue 11, November 2024.
Conventional fluids used in fission‐based water‐cooled nuclear reactors have lower heat transfer coefficients and thermal conductivity, prompting researchers to explore high‐performance fluids to enhance heat transfer and prevent core meltdown during accidents. It is crucial to investigate fluids that can improve thermal hydraulic characteristics, such
Rehan Zubair Khalid, Mehmood Iqbal, Aitazaz Hassan, Syed Muhammad Haris, Atta Ullah   +4 more
wiley   +1 more source

Validation of the code package MCPV with continuous-energy data library [PDF]

Ядерна фізика та енергетика
The results of the validation of the code package MCPV for the calculation of radiation transport within VVER-1000 reactor type near-vessel space using a continuous-energy data library are presented.
О. M. Pugach, S. M. Pugach, V. L. Diemokhin, V. N. Bukanov, O. V. Grytsenko   +4 more
doaj   +1 more source

Exploring thermal flow dynamics in pressurized water reactors using hybrid graphene nanoplatelet coolants

Energy Science &Engineering, Volume 12, Issue 11, Page 4894-4903, November 2024.
Exploring thermal flow dynamics in pressurized water reactors using hybrid graphene nanoplatelet coolants. Abstract This study investigates the impact of hybrid nanoparticles on the temperature of nuclear reactor coolant, with a focus on graphene nanoplatelet (GNP)‐based hybrid nanoparticles. Sixteen different hybrid nanofluids were analyzed, and their
Sinem Uzun, Yasin Genç, Adem Acır
wiley   +1 more source

Enhancing Resilience through Nuclear Emergency Preparedness at El Dabaa Site

Science and Technology of Nuclear Installations, Volume 2024, Issue 1, 2024.
The research utilized advanced PCTRAN and RASCAL software to evaluate the potential radiological impacts of hypothetical accidents, specifically loss‐of‐coolant accident (LOCA) and long‐term station blackout (LTSBO), at the El Dabaa Nuclear Power Plant. Over a span of ten years, comprehensive meteorological data were meticulously analyzed to assess the
Waad Saleh, Juyoul Kim, Doddy Kastanya
wiley   +1 more source

Diagnostics of VVER-1000 core states by reactivity perturbations

Global Nuclear Safety
The self-sustained nuclear fission chain reaction is based on the probabilistic nature of fundamental physical processes. The measure of the dynamics of these processes (state identifier) is taken to be reactivity as a special physical property of the medium or technical system.
V. Y. Shpitser, V. V. Krivin
openaire   +1 more source

OPTIMIZATION OF POWER LOAD FOLLOWING MODES FOR VVER-1000

POWER ENGINEERING: economics, technique, ecology
  The need to involve nuclear power plants in daily power regulation is driven by the gradual increase in the share of renewable energy sources in the Unified Energy System (UES) of Ukraine. Additionally, the conditions for implementing measures to address climate change and deteriorating operating conditions of the UES in the face of economic changes
Svyatoslav Kobrynchuk, Maksym Ieremenko
openaire   +2 more sources

Development of a three-dimensional model of the vver-1000 reactor using serpent monte carlo code for neutron-physical modeling

Trudy Odesskogo Politehničeskogo Universiteta, 2019
The VVER reactor investigation is an important goal for Ukrainian nuclear energy. Different deterministic and stochastic codes are using for this purpose.
Володимир Іванович Гулік, Віталій Володимирович Гальченко, Ігор Ігоревич Шлапак, Дмитро Володимирович Будік   +3 more
doaj  

Study on Transmutation of Minor Actinides as Burnable Poison in VVER-1000 Fuel Assembly

Science and Technology of Nuclear Installations, 2019
Thermal reactors have been considered as interim solution for transmutation of minor actinides recycled from spent nuclear fuel. Various studies have been performed in recent decades to realize this possibility.
Vinh Thanh Tran, Hoai-Nam Tran, Huu Tiep Nguyen, Van-Khanh Hoang, Pham Nhu Viet Ha   +4 more
doaj   +1 more source