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18 articles for “reactor stability”
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Nonlinear Mathematical Modelling and Adaptive Optimization of Nuclear Reactor Thermal-Hydraulic Systems for Safe and Efficient Operation
Abstract: Advanced nuclear reactors are characterized by strongly coupled nonlinear interactions among neutron kinetics, reactor power, fuel temperature, coolant temperature, reactivity, and coolant flow. Accurate mathematical representation of these interactions is essential for analysing reactor stability, thermal behaviour, and safe operating conditions. This study develops a nonlinear mathematical framework for coupled neutronic–thermal reactor dynamics by integrating point-reactor kinetics, delayed-neutron precursor equations, fuel and coolant energy balances, and temperature- dependent reactivity feedback. …
Published in Journal of Thermal Engineering and Applications · Vol. 16, Issue 2, 2026 Read article
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Mathematical Derivation and Stability Analysis of a Coupled Neutron Kinetics–Thermal Feedback Model for Nuclear Reactor Safety
Abstract: Nuclear reactor safety assessment requires accurate characterization of the coupled interaction between neutron population dynamics and thermal feedback during steady-state operation and transient conditions. This study develops a mathematically derived coupled neutron kinetics–thermal feedback model for analysing reactor stability and transient behaviour. The formulation integrates point reactor kinetics with delayed-neutron precursor dynamics, fuel-temperature evolution, coolant- temperature variation, and temperature-dependent reactivity feedback. The reactor is represented as a nonlinear dynamical system …
Published in Journal of Nuclear Engineering & Technology · Vol. 16, Issue 2, 2026 Read article
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Reimagining Nuclear Reactor Safety: The Study toward Passive Safety
Abstract: Nuclear power has been at a crossroads for decades. Acclaimed for its massive, decarbonized energy production, it has also been questioned because of the disastrous possibility of mishaps. Nuclear power remains a vital component of the global energy mix, offering a low-carbon, high- capacity solution to growing energy demands. However, its widespread adoption has historically been tempered by public safety concerns, amplified by incidents like Chernobyl and Fukushima. Traditional reactor …
Published in Journal of Nuclear Engineering & Technology · Vol. 15, Issue 3, 2025 · pp. 6–15 Read article
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AI-Assisted Gain Scheduling for Real-Time Temperature Control in Chemical Reactors
Abstract: Temperature control in continuous stirred-tank reactors (CSTR) represents a critical challenge in chemical process industries due to inherent nonlinearities, time-varying dynamics, and parametric uncertainties. Conventional proportional-integral-derivative (PID) controllers with fixed gains often fail to maintain optimal performance across varying operating conditions, leading to temperature excursions that compromise product quality and safety. This paper presents a novel AI-assisted gain scheduling framework that integrates artificial neural networks (ANN) with adaptive PID control …
Published in Journal of Control & Instrumentation · Vol. 17, Issue 1, 2026 · pp. 24–33 Read article
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Correlations for some Thermal Hydraulic Parameters for a Pressurized Water Reactor
Abstract: Pressurized Water Reactor (PWR) constitutes majority of nuclear power plants used worldwide because of its stability which enhances operability. However, the design and safe operation of the PWR is dependent on certain thermal hydraulic parameters such as friction factor and heat transfer. In this study, therefore the correlations for the calculation of the two important thermal hydraulic parameters are presented. Correlations used include: Dittus-Boelter and Chilton-Colburn for heat transfer, Blasius …
Published in Journal of Nuclear Engineering & Technology · Vol. 6, Issue 1, 2016 · pp. 1–10 Read article
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A study on Bridging Chemical Transformation and Climate Feedbacks in the Earth System
Abstract: The atmosphere operates as a vast and complex chemical reactor, where minute-scale transformations exert profound influence on planetary-scale climate stability. This research investigates the multi-scale coupling between reactive tropospheric chemistry and large-scale climate feedbacks, challenging traditional modeling approaches that often divorce chemical kinetics from dynamic processes. By integrating high-resolution chemical transport models (CTMs) with comprehensive Earth System Models (ESMs), we map the flow of energy and matter from the molecular …
Published in International Journal of Climate Conditions · Vol. 2, Issue 2, 2025 · pp. 1–8 Read article
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Analysis of LC Oscillation Presence and Its Impacts in 765 kv Line Connected With Non-Switchable Shunt Reactor
Abstract: AbstractThe transmission lines are one of the most important parts of the power system. The number of line faults in transmission line is more compared with the total number of faults in the whole power system. Distance protection is commonly used in long transmission lines. It works on the basis of increase or decreases in predetermined value of circuit admittance, impedance, or reactance. Shunt reactors are connected in high voltage …
Published in Trends in Opto-electro & Optical Communication · Vol. 6, Issue 1, 2016 · pp. 20–24 Read article
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Challenges and Opportunities in the Catalytic Conversion of CO₂ to Value-Added Chemicals
Abstract: The catalytic conversion of CO2 into value-added chemicals presents a promising strategy for tackling the dual challenges of greenhouse gas emissions and the sustainable production of chemicals. This process transforms CO2, a major contributor to climate change, into useful products such as methanol, formic acid, and hydrocarbons. Such an approach not only helps mitigate CO2 levels in the atmosphere but also generates economically valuable products, thereby supporting both environmental and …
Published in Journal of Catalyst & Catalysis · Vol. 11, Issue 2, 2024 · pp. 30–35 Read article
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Synthesis of Poly(Methyl Methacrylate) Latex Using Batch Emulsion Polymerization Reactor: Experimental and Simulation Study
Abstract: AbstractThe rationale for the present study was to develop Poly(methyl methacrylate) polymer latex, using free radical emulsion polymerization mechanism, in which water acted as the continuous aqueous phase, methyl methacrylate monomer as the dispersed phase, potassium persulfate (KPS) as an initiator and sodium dodecyl sulfate (SDS) as the stabilizing agent. PMMA is a versatile thermoplastic resin, used widely because of its excellent performance in optical and medical field. The characterization …
Published in Journal of Polymer & Composites · Vol. 4, Issue 1, 2016 · pp. 37–44 Read article
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Design of Digital Controller for An Unstable CSTR Process
Abstract: Continuous Stirred Tank Reactor (CSTR) plays a vital role in almost all the chemical industrial processes. CSTR is a highly nonlinear process exhibiting stable and unstable steady state at different regions. Control of the temperature of the CSTR process in the entire operating range is a difficult task. This paper deals with the design of a digital pole placement controller for a jacketed chemical reactor system which is an open …
Published in Journal of Electronic Design Technology · Vol. 5, Issue 3, 2014 · pp. 1–6 Read article
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Understanding the Corrosion Behaviour of Graphite in Peat Environment for Environmental and Sustainability Applications
Abstract: Graphite, which is one of the most remarkable carbon materials for industrial applications, is a heat exchanger component material in the phosphoric acid industry, bipolar layer or electrode material in vanadium redox flow batteries, electrode material for advanced oxidation processes, electrode material for lead-acid batteries, electrode material in fuel cells and microbial fuel cells, and more interesting, as moderator or core material in nuclear reactors used. Corrosion, one of the …
Published in Journal of Polymer & Composites · Vol. 13, Issue 1, 2025 · pp. 728–737 Read article
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Pre-Deployment Tests of Signal Conditioning Boards for Wireless Sensor Network Deployment
Abstract: AbstractDiversity in signal measurement and transmission increases signal availability. Various well known stabilized technologies are available to use to achieve diversity in signal measurement. But to achieve transmission diversity, the wireless technology is a truly diverse mechanism of wired transmission. Wireless Sensor Network (WSN) is the practical implementation of such technology. To implement WSN for nuclear reactor signals, it requires stringent testing, qualification, verification and validation of WSN nodes and …
Published in Journal of Instrumentation Technology & Innovations · Vol. 7, Issue 2, 2017 · pp. 1–11 Read article
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Future Challenges of Photocatalytic Water Splitting: Sustainability
Abstract: Photocatalytic water splitting has emerged as a promising technology for sustainable hydrogen production through the direct utilization of solar energy. This process mimics natural photosynthesis, using semiconductor materials to absorb light and drive the decomposition of water into hydrogen and oxygen. The method provides a sustainable and eco-friendly solution to the global energy challenge by enabling the reduction of carbon emissions. Among various solar-to-chemical energy conversion approaches, photocatalytic water splitting …
Published in International Journal of Photochemistry and Photochemical Research · Vol. 3, Issue 2, 2025 · pp. 43–48 Read article
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Synthesis and Evaluation of MgO-Supported Activated Carbon for Carbon dioxide Capture
Abstract: Carbon dioxide (CO₂) capture has emerged as a critical strategy for mitigating greenhouse gas emissions and addressing global climate change. In this study, a series of MgO-supported activated carbon adsorbents containing 2, 4, 6, 8, and 10 wt% MgO were successfully synthesized using the impregnation method to evaluate their CO₂ adsorption performance. The structural, chemical, and surface properties of the prepared materials were characterized using powder X-ray diffraction (PXRD), Fourier-transform …
Published in Journal of Catalyst & Catalysis · Vol. 13, Issue 3, 2026 · pp. 53–57 Read article
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Nuclear Power as a Clean Energy Future: A Review
Abstract: The global push for decarbonization necessitates a diverse energy portfolio, and nuclear power, once a subject of intense debate, is re-emerging as a potential cornerstone of a clean energy future. With its capacity for baseload power generation and minimal greenhouse gas emissions during operation, nuclear energy offers a compelling substitute for fossil fuels, particularly in a world grappling with climate change. However, challenges remain regarding safety, waste disposal, and economic …
Published in Journal of Nuclear Engineering & Technology · Vol. 15, Issue 2, 2025 · pp. 1–11 Read article
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Synthesis of Biofuel from Castor Oil Using Novel Catalysts
Abstract: An essential step in improving biofuels, especially those made from biomass, is hydrodeoxygenation (HDO). HDO's primary goal is to eliminate oxygen atoms from the biofuel feedstock in the form of water, which enhances the fuel's energy density, stability, and compatibility with current fuel.This study uses a large surface area catalyst to investigate the hydrodeoxygenation (HDOx) activity of non-edible oils. In addition to other supports including H-USY and MCM-41, large surface …
Published in Journal of Polymer & Composites · Vol. 12, Issue 4, 2024 · pp. 226–237 Read article
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Analysis aspects of pressure tank: A review
Abstract: This review paper presents a detailed analysis of pressure vessels, focusing on finite element analysis (FEA) to evaluate structural integrity. Pressure vessels are widely used in industries such as chemical processing, power plants, and oil refineries, where they are subjected to extreme temperature and pressure conditions. Ensuring their safe and efficient operation requires a thorough understanding of stress distribution, deformation characteristics, and failure mechanisms. This study reviews existing research on …
Published in Journal of Materials & Metallurgical Engineering · Vol. 15, Issue 3, 2025 · pp. 49–55 Read article
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From Quantum Chemistry to Bioprocess Intensification: Advanced Computational Modeling and Enzyme-Based Catalytic Platforms for Green Chemical Transformations
Abstract: Green chemistry requires the development of sustainable catalytic systems that minimize waste generation, reduce energy consumption, and improve process efficiency. Computational chemistry and biocatalysis have emerged as complementary approaches for environmentally responsible chemical manufacturing. Computational techniques such as quantum chemistry, density functional theory (DFT), molecular dynamics, and machine learning provide mechanistic insights into catalytic reactions and support the rational design of efficient catalysts. These approaches enable the prediction of reaction …
Published in Journal of Catalyst & Catalysis · Vol. 13, Issue 2, 2026 · pp. 45–52 Read article