Advanced reactor systems

Continued part 1, part 2 of ebook "Wind energy systems: Optimising design and construction for safe and reliable operation" provides readers with content including: wind energy systems - optimising design and construction for safe and reliable operation; solid oxide fuel cell technology - principles, performance and operations; handbook of advanced radioactive waste conditioning technologies; nuclear reactor safety systems;...

294p lytamnguyet 04-08-2023 10 5   Download

The natural convection method is used in many advanced nuclear reactors, such as Generation IV and Small Modular Reactors to improve the safety and reliability. In order to investigate the natural circulation (NC) behavior in A NuScale Power Module Reactor, a numerical study on the NC in primary system for such kind of reactor was obtained by using RELAP5.

10p vicedric 08-02-2023 5 3   Download

The Advanced Boiling Water Reactor (ABWR) is an established evolutionary water reactor that has successfully achieved design certification in a number of countries. However, core design information is scarce in the open literature and this makes studying the suitability of new fuel types difficult and complicates comparisons with other reactor systems.

13p vironald 15-12-2022 6 4   Download

Performing accurate numerical simulations of molten salt reactors is challenging, especially in case of fastspectrum designs, due to the unique physics phenomena characterizing these systems. The limitations of codes traditionally used in the nuclear community often require the development of novel high-fidelity multiphysics tools to advance the design of these innovative reactors.

15p vironald 15-12-2022 14 4   Download

A model has been made of the primary shutdown system of an Advanced Gas-cooled Reactor nuclear power station. The aim of this paper is to explore the use of sensitivity analysis techniques on this model.

10p vironald 15-12-2022 7 4   Download

In the present paper, a new process, whose acronym is UTN (University of Trento) system, is proposed and tested at full scale for reducing the amount of sludge of the wastewater treatment plant. The UTN system allows sludge reduction in conventional activated sludge (CAS) due to the cell lysis, the sludge decay and, above all, to the selection of slow growing microorganism.

8p thebadguys 15-01-2022 12 0   Download

The complete treatment of colors and hazardous substances at a reasonable cost is of particular interest in the textile industry. In this batch form study, dye solution and textile dyeing wastewater were successfully treated by Fenton technology combining Moving Bed Reactor/Activated carbon (Fenton-MBR/AC) system. The optimum operating conditions including 3.5 of pH value, 0.5 of Fe/H2O2 ratio, 25mL of H2O2 (30%) solution, and 200mL of sample were found. After 60 min, the color removal and efficiency of COD treatment was 94% and 89%, respectively.

4p caygaocaolon11 18-04-2021 16 1   Download

This paper also discusses needs and challenges associated with advanced instrumentation for the multi-loop facility, which could be further applied to advanced high-temperature reactors. Based on its relevance to advanced reactor systems, the new facility has been named the Advanced Reactor Technology Integral System Test (ARTIST) facility.

10p christabelhuynh 31-05-2020 14 0   Download

This paper will present the progress in the project with respect to liquid metal cooled reactor thermal-hydraulics (liquid metal heat transfer, fuel assembly thermal-hydraulics, pool thermal-hydraulics, and system thermal-hydraulics).

8p christabelhuynh 29-05-2020 9 2   Download

In this paper, recent advances in the CUPID code are presented in three sections. First, the domain decomposition parallel method implemented in the CUPID code is described with the parallel efficiency test for multiple processors. Then, the coupling of CUPID-MARS via heat structure is introduced, where CUPID has been coupled with a system-scale thermal-hydraulics code, MARS, through the heat structure. The coupled code has been applied to a multi-scale thermal-hydraulic analysis of a pool mixing test. Finally, CUPID-SG is developed for analyzing two-phase flows in PWR steam generators.

12p minhxaminhyeu5 30-06-2019 16 1   Download

The advanced passive pressurized water reactor (PWR) is being constructed in China and the passive residual heat removal (PRHR) system was designed to remove the decay heat. During accident scenarios with increase of heat removal from the primary coolant system, the actuation of the PRHR will enhance the cooldown of the primary coolant system. There is a risk of power excursion during the cooldown of the primary coolant system. Therefore, it is necessary to analyze the thermal hydraulic behavior of the reactor coolant system (RCS) at this condition.

9p minhxaminhyeu5 30-06-2019 16 1   Download

The secondary side of the HOTSG is divided into single-phase liquid region, nucleate boiling region, postdryout region, and singlephase vapor region. Different heat transfer correlations and pressure drop correlations are reviewed and applied. To benchmark the developed physical models and the computer code, H-OTSGs developed in Marine Reactor X and System-integrated Modular Advanced ReacTor are simulated by the code, and the results are compared with the design data.

8p minhxaminhyeu4 26-06-2019 7 0   Download

This paper proposes a TakagieSugeno (TeS) fuzzy logic-based power distribution system. Two TeS fuzzy power distribution controllers have been designed and tested. Simulation shows that the devised TeS fuzzy controllers provide improved performance over traditional controls during daily load-following operation under different levels of pump degradation.

9p minhxaminhyeu4 26-06-2019 22 0   Download

The long-term economic viability of these advanced reactor plants depends on significant reductions in plant operations and maintenance costs. To accomplish these goals, intelligent control and diagnostic capabilities are needed to provide nearly autonomous operations with anticipatory maintenance. A nearly autonomous control system should enable automatic operation of a nuclear power plant while adapting to equipment faults and other upsets. It needs to have many intelligent capabilities, such as diagnosis, simulation, analysis, planning, reconfigurability, self-validation, and decision.

9p minhxaminhyeu4 26-06-2019 18 0   Download

Monte Carlo calculation method can be used for resolving particle transport in matter, and particularly the transport of neutrons in the environment of the reactor core. The method has become more efficient because of high accuracy of updated nuclear data and fast development of advanced super-computing system. In this work, we would like to present calculations for kinematic characteristics of neutron transport in a typical configuration of the pressurized water reactor (PWR) fuel assembly based on the Monte-Carlo simulation method.

6p thuyliebe 09-10-2018 33 0   Download

This book highlights the important need for more efficient and environmentally sound combustion technologies that utilise renewable fuels to be continuously developed and adopted. The central theme here is two-fold: internal combustion engines and fuel solutions for combustion systems. Internal combustion engines remain as the main propulsion system used for ground transportation, and the number of successful developments achieved in recent years is as varied as the new design concepts introduced....

318p haiduong_1 15-04-2013 144 10   Download

The aim of this book is to disseminate state-of-the-art research and advances in the area of nuclear reactors technology. The book was divided in two parts.

0p phoebe75 19-02-2013 65 8   Download

This book collects original and innovative research studies concerning modeling and simulation of physical systems in a very wide range of applications, encompassing micro-electro-mechanical systems, measurement instrumentations, catalytic reactors, biomechanical applications, biological and chemical sensors, magnetosensitive materials, silicon photonic devices, electronic devices, optical fibers, electro-microfluidic systems, composite materials, fuel cells, indoor air-conditioning systems, active magnetic levitation systems and more.

348p kimngan_1 05-11-2012 83 7   Download