Status of Reactivity Control Technology for Heavy Water Moderated Reactors

Status of Reactivity Control Technology for Heavy Water Moderated Reactors PDF

Author: J. R. Worden

Publisher:

Published: 1969

Total Pages: 56

ISBN-13:

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A brief review has been made of the status of technology in control system design for heavy water reactors. This review was made for the Heavy Water Program Office to assist in determining research and development requirements for control systems of large heavy water power reactors. This report includes: 1. A review of control mechanisms for heavy water reactors, and 2. A review of control systems used in current heavy water reactors.

Nuclear Energy Materials And Reactors - Volume I

Nuclear Energy Materials And Reactors - Volume I PDF

Author: Yassin A. Hassan

Publisher: EOLSS Publications

Published: 2010-09-22

Total Pages: 428

ISBN-13: 1848263112

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Nuclear Energy Materials and Reactors is a component of Encyclopedia of Energy Sciences, Engineering and Technology Resources in the global Encyclopedia of Life Support Systems (EOLSS), which is an integrated compendium of twenty one Encyclopedias. Nuclear energy is a type of technology involving the controlled use of nuclear fission to release energy for work including propulsion, heat, and the generation of electricity. The theme on Nuclear Energy Materials and Reactors discusses: Fundamentals of Nuclear Energy; Nuclear Physics; Nuclear Interactions; Nuclear Reactor Theory; Nuclear Reactor Design; Nuclear Reactor Kinetics; Reactivity Changes; Nuclear Power Plants; Pressurized Water Reactors; Boiling Water Reactors; Pressurized Heavy Water Reactors; Heavy Water Light Water Reactors; Advanced Gas Cooled Reactors; Light Water Graphite Reactors; High Temperature Gas Cooled Reactors; Pebble Bed Modular Reactor; Radioactive Wastes, Origins, Classification and Management; Nuclear Reactor Overview and Reactor Cycles; The Nuclear Reactor Closed Cycle; Safety of Boiling Water Reactors; Supercritical Water-Cooled Nuclear Reactors: Review and Status; The Gas-Turbine Modular Helium Reactor; Application of Risk Assessment to Nuclear Power Plants; Production and Recycling Resources for Nuclear Fission. These two volumes are aimed at the following five major target audiences: University and College students Educators, Professional practitioners, Research personnel and Policy analysts, managers, and decision makers.

Nuclear Power

Nuclear Power PDF

Author: National Research Council

Publisher: National Academies Press

Published: 1992-02-01

Total Pages: 234

ISBN-13: 0309043956

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The construction of nuclear power plants in the United States is stopping, as regulators, reactor manufacturers, and operators sort out a host of technical and institutional problems. This volume summarizes the status of nuclear power, analyzes the obstacles to resumption of construction of nuclear plants, and describes and evaluates the technological alternatives for safer, more economical reactors. Topics covered include: Institutional issues-including regulatory practices at the federal and state levels, the growing trends toward greater competition in the generation of electricity, and nuclear and nonnuclear generation options. Critical evaluation of advanced reactors-covering attributes such as cost, construction time, safety, development status, and fuel cycles. Finally, three alternative federal research and development programs are presented.

Power Distribution Control and Stochastic Observers for Flux Mapping for Advanced Heavy Water Reactor

Power Distribution Control and Stochastic Observers for Flux Mapping for Advanced Heavy Water Reactor PDF

Author: Ranvir Jayprakash Desai

Publisher:

Published: 2024-02

Total Pages: 0

ISBN-13:

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India's three-stage nuclear power programme involves self sustaining Thorium closed fuel cycle based reactors. It has initiated design and development of the Advanced Heavy Water Reactor (AHWR). AHWR is a 920 MW (thermal) capac- ity, heavy water moderated, boiling light water cooled in natural circulation, vertical pressure tube type nuclear reactor. It is fueled by (Th-233U)O2 pins and (Th-Pu)O2 pins and the reactivity is mainly controlled by neutron absorber rods. Some advantages of Thorium-based fuel cycle are abundance of Thorium in In- dia, closed fuel cycle, reduction of radio toxicity of waste to a lower extent, proliferation resistance (prevent or discourage the production of weapon grade material). AHWR offers clean, sustainable nuclear energy, and is one of the flagship technologies of India's nuclear programme. The physical dimensions of AHWR are very large in comparison to neutron migration length, making it susceptible to Xenon induced oscillations and flux- tilting. These undesirable oscillations are common with large nuclear reactors which, if not controlled, can pose unequal spatial distribution of power and increase the chances of fuel failure. Thus it is necessary to devise a control strategy to regulate these spatial oscillations.