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The Influence Of Thorium Uranium And Plutonium Fuel Mixture Composition On The Reactivity Coefficients Of Pressurised Water Reactors
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Book Synopsis The Influence of Thorium, Uranium and Plutonium Fuel Mixture Composition on the Reactivity Coefficients of Pressurised Water Reactors by :
Download or read book The Influence of Thorium, Uranium and Plutonium Fuel Mixture Composition on the Reactivity Coefficients of Pressurised Water Reactors written by and published by . This book was released on 2019 with total page 270 pages. Available in PDF, EPUB and Kindle. Book excerpt: Reactivity coefficients -- Doppler coefficient (DC) -- Moderator temperature coefficient (MTC) -- Critical Boron Concentration (CBC) -- UO2 (Uranium dioxide) -- MOX (Mixed Oxide fuel) -- Thorium -- Fuel pin -- PWR (Pressurized Water Reactor) -- MCNP (Monte Carlo N Particle Code)
Book Synopsis Technical Report on Effects of Plutonium Utilization on the Performance of Light Water Reactors by :
Download or read book Technical Report on Effects of Plutonium Utilization on the Performance of Light Water Reactors written by and published by . This book was released on 1974 with total page 64 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Non-Proliferative, Thorium-Based, Core and Fuel Cycle for Pressurized Water Reactors by :
Download or read book Non-Proliferative, Thorium-Based, Core and Fuel Cycle for Pressurized Water Reactors written by and published by . This book was released on 2009 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Two of the major barriers to the expansion of worldwide adoption of nuclear power are related to proliferation potential of the nuclear fuel cycle and issues associated with the final disposal of spent fuel. The Radkowsky Thorium Fuel (RTF) concept proposed by Professor A. Radkowsky offers a partial solution to these problems. The main idea of the concept is the utilization of the seed-blanket unit (SBU) fuel assembly geometry which is a direct replacement for a 'conventional' assembly in either a Russian pressurized water reactor (VVER-1000) or a Western pressurized water reactor (PWR). The seed-blanket fuel assembly consists of a fissile (U) zone, known as seed, and a fertile (Th) zone known as blanket. The separation of fissile and fertile allows separate fuel management schemes for the thorium part of the fuel (a subcritical 'blanket') and the 'driving' part of the core (a supercritical 'seed'). The design objective for the blanket is an efficient generation and in-situ fissioning of the U233 isotope, while the design objective for the seed is to supply neutrons to the blanket in a most economic way, i.e. with minimal investment of natural uranium. The introduction of thorium as a fertile component in the nuclear fuel cycle significantly reduces the quantity of plutonium production and modifies its isotopic composition, reducing the overall proliferation potential of the fuel cycle. Thorium based spent fuel also contains fewer higher actinides, hence reducing the long-term radioactivity of the spent fuel. The analyses show that the RTF core can satisfy the requirements of fuel cycle length, and the safety margins of conventional pressurized water reactors. The coefficients of reactivity are comparable to currently operating VVER's/PWR's. The major feature of the RTF cycle is related to the total amount of spent fuel discharged for each cycle from the reactor core. The fuel management scheme adopted for RTF core designs allows a significant decrease in the amount of discharged spent fuel, for a given energy production, compared with standard VVER/PWR. The total Pu production rate of RTF cycles is only 30 % of standard reactor. In addition, the isotopic compositions of the RTF's and standard reactor grade Pu are markedly different due to the very high burnup accumulated by the RTF spent fuel.
Book Synopsis Long Term Utilization of Uranium and Thorium by : Donald W. Kuhn
Download or read book Long Term Utilization of Uranium and Thorium written by Donald W. Kuhn and published by . This book was released on 1961 with total page 42 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis The Influence of Thorium on the Temperature Reactivity Coefficient in a 400 MWth Pebble Bed High Temperature Plutonium Incinerator Reactor by : Guy Anthony Richards
Download or read book The Influence of Thorium on the Temperature Reactivity Coefficient in a 400 MWth Pebble Bed High Temperature Plutonium Incinerator Reactor written by Guy Anthony Richards and published by . This book was released on 2012 with total page 82 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis The Use of Thorium in Nuclear Power Reactors by :
Download or read book The Use of Thorium in Nuclear Power Reactors written by and published by . This book was released on 1969 with total page 160 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis The Time-dependent Changes of Operation Conditions of Thorium Homogeneous Power Reactor Before the Steady State by : Akira Oyama
Download or read book The Time-dependent Changes of Operation Conditions of Thorium Homogeneous Power Reactor Before the Steady State written by Akira Oyama and published by . This book was released on 1961 with total page 12 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Boiling Water Reactors with Uranium-plutonium Mixed Oxide Fuel by : C. Demazière
Download or read book Boiling Water Reactors with Uranium-plutonium Mixed Oxide Fuel written by C. Demazière and published by . This book was released on 2000 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Optimization of a Seed and Blanket Thorium-uranium Fuel Cycle for Pressurized Water Reactors by : Dean Wang
Download or read book Optimization of a Seed and Blanket Thorium-uranium Fuel Cycle for Pressurized Water Reactors written by Dean Wang and published by . This book was released on 2003 with total page 252 pages. Available in PDF, EPUB and Kindle. Book excerpt: (Cont.) Fuel performance was analyzed using FRAPCON. The radioactivity and decay heat from the spent seed and blanket fuel were studied using MIT's MCODE (which couples MCNP and ORIGEN) to do depletion calculations, and ORIGEN to analyze the spent fuel characteristics after discharge. The analyses show that the WASB core can satisfy the requirements of fuel cycle length and safety margins of conventional PWRs. The coefficients of reactivity are comparable to currently operating PWRs. However, the reduction in effective delayed neutron fraction (eff) requires careful review of the control systems because of its importance to short term power transients. Whole core analyses show that the total control rod worth of the WASB core is about 1/3 less than those of a typical PWR for a standard arrangement of Ag-In-Cd control rods in the core. The use of enriched boron in the control rods can effectively improve the control rod worth. The control rods have higher worth in the seed than in the blanket. Therefore, a new loading pattern has been designed so that almost all the control rods will be located in seed assemblies. However, the new pattern requires a redesign of the vessel head of the reactor, which is an added cost in case of retrofitting in existing PWRs. Though the WASB core has high power peaking factors, acceptable MDNBR in the core can be achieved under conservative assumptions by using grids with large local pressure loss coefficient in the blanket. However, the core pressure drop will increase by 70% ...
Book Synopsis Thorium Fuel Cycle by : International Atomic Energy Agency
Download or read book Thorium Fuel Cycle written by International Atomic Energy Agency and published by . This book was released on 2005 with total page 120 pages. Available in PDF, EPUB and Kindle. Book excerpt: Provides a critical review of the thorium fuel cycle: potential benefits and challenges in the thorium fuel cycle, mainly based on the latest developments at the front end of the fuel cycle, applying thorium fuel cycle options, and at the back end of the thorium fuel cycle.
Book Synopsis Effects of Water Vapor and Other Gases on Uranium, Thorium, Plutonium, and Carbides by : Brigitta M. Dobratz
Download or read book Effects of Water Vapor and Other Gases on Uranium, Thorium, Plutonium, and Carbides written by Brigitta M. Dobratz and published by . This book was released on 1964 with total page 26 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author :Agència d'Energia Nuclear (Organització de Cooperació i Desenvolupament Econòmic) Publisher : ISBN 13 :9789264145917 Total Pages :144 pages Book Rating :4.1/5 (459 download)
Book Synopsis Void Reactivity Effect in Pressurized-water Reactors by : Agència d'Energia Nuclear (Organització de Cooperació i Desenvolupament Econòmic)
Download or read book Void Reactivity Effect in Pressurized-water Reactors written by Agència d'Energia Nuclear (Organització de Cooperació i Desenvolupament Econòmic) and published by . This book was released on 1995 with total page 144 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Proliferation-proof Uranium/Plutonium and Thorium/Uranium Fuel Cycles by : Günter Kessler
Download or read book Proliferation-proof Uranium/Plutonium and Thorium/Uranium Fuel Cycles written by Günter Kessler and published by . This book was released on 2020-10-09 with total page 578 pages. Available in PDF, EPUB and Kindle. Book excerpt: Thermal and neutron physics analysis show that above certain concentrations of the isotope Pu-238 hypothetical nuclear explosive devices, made of reactor-grade plutonium, are technically not feasible. Future proliferation-proof fuel cycles are proposed which make use of methods of actinide tansmutation.Reactors operating in the thorium/uranium fuel cyce are loaded with This work was published by Saint Philip Street Press pursuant to a Creative Commons license permitting commercial use. All rights not granted by the work's license are retained by the author or authors.
Book Synopsis Nuclear Power Warts and All by : Steven Wildy
Download or read book Nuclear Power Warts and All written by Steven Wildy and published by . This book was released on 2017-11-09 with total page 277 pages. Available in PDF, EPUB and Kindle. Book excerpt: An history on the development of Nuclear Power, types of reactors, fission theory and a detailed look at how nuclear accidents happened. This book covers; NUCLEAR POWER EARLY DEVELOPMENT details the contributions of noteworthy scientist: THE ATOM details the forces with the Atom: RADIOACTIVITY describes the types of radiation: how it is measured and different sources: NUCLEAR REACTIONS describes Fusion and Fission, how to increase rate of fission by moderation and enrichment. Describes enrichment techniques: HOW RADIATION EFECTS THE HUMAN BODY describes how cancer occurs by effects on chromosomes discuses natural sources of radiation Relative Biological Effectiveness, Radiation Hormesis, Neoplasm: TYPES OF NUCLEAR REACTORS; Describes different types of Thermal Reactors, and Fast Reactors including Pressure Water Reactors, Gas Cooled Reactors and advance variant, Water Cooled Water Moderated Power Reactor (WWER), Pressurised Heavy Water Reactors, Boiling Water Reactors and advanced variant, Pebble Bed Reactors, Aquesous Homogeneous Reactors, Fast Breeder Reactors, Liquid Metal Fast Breeder Reactors, Sodium Cooled Reactors, Lead Cooled Reactors. Development Stage Reactors these include Integral Fast Reactors (IFR), High Temperature Gas Cooled Reactor, Small Sealed Transportable Autonumous Reactor, Clean and Environmentally Safe Advanced Reactor. Design Stage Reactors, Reduced Moderation Water Reactor, Hydrogen Moderated Self Regulating Nuclear Power Module, Subcritical Reactors, Energy Amplifier, Thorium-based Reactors, Advanced Heavy Water Reactor, Kalpakkarn Mini.DESIGN FACTORS FOR AGR AND PWR discusses fuel, coolant, moderators control rods, chemical compatability, fuel clad.EFFECTS OF REACTIVITY discusses measurement of irradiation, isotopic changes in the fuel, change in Fuel from Uranium to Plutonium and its conversion ratio, refuelling options. Reactor poisons Xenon, Samarium Cadmium, Europium, Gaddolinium, Krypton and Technetium and their significance. TEMPERATURE EFFECTS considers fuel and moderator coefficients. REACTOR CONTROL Describes the various types of control rods i.e grey, coarse, safety and the requirement of superariculated rods in case of distotion. Back up control methods include the use of Nitrogen. Reactivity faults are desribed the protection methods and measurement. GETTING THE RIGHT NEUTRON TO MODERATOR BALANCE including the required level of enrichment. EFFECTS OF REACTOR COMPOSITION ON REACTIVITY : HOMOGENEOUS AND HETEROGENEOUS REACTOR affects of size and shape on neutron leakage, flux distribution in various shaped reactors, Jo Berssel Envelope: RADIAL FLUX, CHANNEL POWER AND REACTION POWER Channel power variations, alterating reactivity by enrichment, neutron absorbtion, differential irradiation, nuetron reflection. NEUTRON KINETICS Delta K, International reactivity units, Neutron Multiplication, Effective neutron multiplication factor, Delayed neutron lifetime, Codd & Wells Table. OPERATIONAL VALUES OF DELTA K Explin terms defining excess reactivity resulting doubling times then prompt criticality, defines operational limits on Delta K: REACTIVITY BALANCES, Built in reactivity, Reactivity Build Up, Xenon, Control Rods: ALL NUCLEAR SITES WORLD WIDE a list of peacefull nuclear power site that are operational, under construction or shutdown: NUCLEAR FUEL TRANSPORTATION AND DISPOSAL OF WASTE Spent fuel and fission by-products, Diffinition of Low, Intermediate, and High levels of waste, waste storage, Details of storage facilities world wide, nuclear reprocessing plants world wide, vitrification, plutomium oxide, storage flasks A, B and C, transportation of radioactive substances, bespoke sea transportation, transport flask tests, UK NUCLEAR SAFETY RECORD Windscale Fire: NUCLEAR CATASTROPHIES Three mile island meltdown containment, Why chernoble's reactor went prompt critical , Chernobyl Investigatin Conclusions, Fukushima triple meltdown, Acheiving optimum nuclear safety, WANO:
Download or read book Nuclear Science Abstracts written by and published by . This book was released on 1973 with total page 1132 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Molten Salt Reactors and Thorium Energy by : Thomas James Dolan
Download or read book Molten Salt Reactors and Thorium Energy written by Thomas James Dolan and published by Elsevier. This book was released on 2024-01-25 with total page 1068 pages. Available in PDF, EPUB and Kindle. Book excerpt: Molten Salt Reactors and Thorium Energy, Second Edition is a fully updated comprehensive reference on the latest advances in MSR research and technology. Building on the successful first edition, Tom Dolan and the team of experts have fully updated the content to reflect the impressive advances from the last 5 years, ensuring this book continues to be the go-to reference on the topic. This new edition covers progress made in MSR design, details innovative experiments, and includes molten salt data, corrosion studies and deployment plans. The successful case studies section of the first edition have been removed, expanded, and fully updated, and are now published in a companion title called Global Case Studies on Molten Salt Reactors. Readers will gain a deep understanding of the advantages and challenges of MSR development and thorium fuel use, as well as step-by-step guidance on the latest in MSR reactor design. Each chapter provides a clear introduction, covers technical issues and includes examples and conclusions, while promoting the sustainability benefits throughout. A fully updated comprehensive handbook on Molten Salt Reactors and Thorium Energy, written by a team of global experts Covers MSR applications, technical issues, reactor types and reactor designs Includes 3 brand new chapters which reflect the latest advances in research and technology since the first edition published Presents case studies on molten salt reactors which aid in the transition to net zero by providing abundant clean, safe energy to complement wind and solar powe
Book Synopsis Scientific and Technical Aerospace Reports by :
Download or read book Scientific and Technical Aerospace Reports written by and published by . This book was released on 1970 with total page 1338 pages. Available in PDF, EPUB and Kindle. Book excerpt:
