Improving the service life and performance of CANDU® fuel channels



Publisher: Research and Product Development, Chalk River Laboratories in Chalk River, Ont

Written in English
Published: Pages: 16 Downloads: 751
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Subjects:

  • Nuclear fuel elements -- Congresses,
  • Nuclear reactors -- Fueling -- Congresses,
  • Nuclear reactors -- Maintenance and repair -- Congresses,
  • Nuclear fuels -- Congresses
  • Edition Notes

    Other titlesAmélioration de la durée de service et des performances des canaux de combustible CANDU®
    Statementby C.E. Coleman ... [et al.].
    GenreCongresses
    SeriesAECL -- 11585, AECL (Series) -- 11585
    ContributionsColeman, C. E., Chalk River Laboratories. Research and Product Development., IAEA Technical Committee.
    The Physical Object
    Pagination16 p. :
    Number of Pages16
    ID Numbers
    Open LibraryOL19748385M
    ISBN 100660164876

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Fuel switching survey responses indicate that at least some incremental fuel switching from gas to electric technology options is expected if the future federal minimum efficiency requirement changes to natural gas condensing furnaces. Fuel switching is expected to .   Even using a B7 blend of diesel—95 percent diesel and 5 percent biodiesel—the study shows that producing the heavier engines of the diesel cars produce more tonnes of CO2. In a CANDU reactor fuel assembly, fuel pellets comprising uranium dioxide (UO 2) are held in a fuel bundle. In each fuel channel of the calandria is a pressure tube that houses 12 fuel bundles. The number of fuel channels in a calandria depends on the type of CANDU reactor; for example, there are fuel channel assemblies in the CANDU 6. Fuel management is one of the most important factors in the combustion process. Maintaining a proper Air to Fuel ratio is crucial to getting the most out of your motor and also to prevent damage. It is important to understand what the proper Air/Fuel ratio is and how it .

electronic fuel management system. MAXIFUEL helps to eliminate theft by. locking the fuel pump or gravity feed between issues; automating the ‘issue book’ recording fuel . performance reactor operation, and the implementation of advanced design and analysis methods, there is a concern that current fuel safety criteria may not remain adequate under these new conditions (e.g. higher burn-up). Historically, fuel safety margins were defined as the conservatisms in the. Thermal–Hydraulic Performance Analysis for AP Passive Containment Cooling System. Yu Yu, Shengfei Wang, Improved Subchannel Thermalhydraulics Code for CANDU Fuel Bundles. Y. F. Rao, Z. Cheng, Improving Thermal-Hydraulic Calculation . The fuel supply system is generally reliable and any problems that do occur are usually traceable to the pump, the fuel filter or the tank. Occasionally, however, the fault lies in the fuel line between the tank and the engine. Pipes can suffer from two main faults: leaking or blockage.

Improving the service life and performance of CANDU® fuel channels Download PDF EPUB FB2

Get this from a library. Improving the service life and performance of CANDU® fuel channels. [C E Coleman; Chalk River Nuclear Laboratories.

Research and Product Development.]. CANDU Fuel Performance by Song Wenhui* and A.M. Manzer** *Shanghai Nuclear Engineering Design & Research Institute **Atomic Energy of Canada Limited 1.

OVERVIEW One of the recognized strengths of the CANDU (CANada Deuterium Uranium) nuclear reactor is the excellent performance of its fuel. Of the more than 1 fuel bundles that have beenFile Size: KB.

Fuel Management in CANDU by B. Rouben Manager, Reactor Core Physics Branch AECL Presented at Chulalongkorn University Bangkok, Thailand, December Abstract Fuel management in CANDU reactors is discussed.

The variation of lattice reactivity with irradiation is shown. The various periods in the operating life of the reactor are Size: 1MB.

@article{osti_, title = {CANDU life extension through large scale fuel channel replacemnt}, author = {Churchill, B R}, abstractNote = {The CANDU reactor design provides for fuel channel replacement capability. Although originally planned for a 30 year design life, the fuel channels of several of the earlier Ontario Hydro reactors were adversely affected by in-service corrosion and.

The compact design of the CANDU fuel bundle, and the impossibility of criticality for CANDU natural uranium spent fuel bundles in water pool storage, make for extremely simple and A key consideration in assessing the long-term performance of a disposal system is the stability of the waste form, since the waste form contains the radioactive File Size: KB.

CANDU In-Core Fuel-Management prepared by Dr. Benjamin Rouben, 12 & 1 Consulting, Adjunct Professor, McMaster University & University of Ontario Institute of Technology (UOIT) Summary: This chapter describes the physical and mathematical models and the computational methods used in the management of fuel in CANDU nuclear Size: 1MB.

The Future Of CANDU improving performance and cost. In addition, we pursue an innovative effort aimed at defining water moderator surrounding the fuel channels is a unique CANDU feature. Christopher E. Coleman.

Development of pressure tubes with service life greater than 30 years. XA IMPROVING THE SERVICE LIFE AND PERFORMANCE OF CANDU FUEL CHANNELS. CANDU 6. The CANDU design is modular, with fuel channels set on a square lattice of lattice pitch equal to cm.

Each fuel channel contains 12 fuel bundles; Figure shows a element fuel bundle. The basic building block of the CANDU design is the basic lattice cell, ofFile Size: KB. having CANDU reactors also have CANDU fuel fabrication facilities). It also simplifies the manufacture (and introduction) of advanced fuels, whether SEU, MOX, DUPIC, thoria, or other advanced fuels requiring remote fabrication.

The performance of CANDU fuel continues to be Size: KB. Fuel Performance: PIE studies/techniques, fuel behaviour (normal operating conditions and extended burnup), and station experience.

Fuel Safety: Licensing issues, accident studies, fission-gas release, fuel behaviour, LOCA initiative and experimental simulation. The aim of this course is to provide an understanding of the CANDU fuel design, performance and operation, and how the fuel interacts with the interfacing systems.

The course will be of great interest to the fuel designers, manufacturers, station operations, fuel channel and fuel handling system designers, safety analysts, performance and. Performance Assessment and Research (SPAR) to collect and exchange spent fuel storage experience of the participating countries, to build a comprehensive international database supporting the licensing of present and future technologies; to carry out research work which.

Fuel channels. As noted in Sectionthe only significant corrosion-related concern for the ZrNb fuel channels is the uptake of hydrogen/deuterium by the pressure tube material as a result of the corrosion process. Oxide growth is slow and has had no impact on fuel channel by: 1. Inspection of channels in a unit to know the locations of the GS spacers was the task ahead to assess the fitness-for-service of coolant channels.

In addition to measuring the location of GS spacers, measurement of the PT-CT gap, volumetric examination and sampling for the assessment of hydrogen ingress were some of the tasks to be done Cited by: 1.

The length of an LWR fuel element is metres, whereas Candu fuel is m long. Each fuel assembly weighs about —kg for pressurized-water reactors (PWRs), kg for boiling-water reactors (BWRs), and about 25kg for Candu reactors.

FBR fuel elements will. @article{osti_, title = {Use of Solid Hydride Fuel for Improved long-Life LWR Core Designs}, author = {Greenspan, E}, abstractNote = {The primary objective of this project was to assess the feasibility of improving the performance of PWR and BWR cores by using solid hydride fuels instead of the commonly used oxide fuel.

The primary measure of performance considered is the bus-bar cost of. CANDU Owners Group Inc. Bay Street, 17th Floor Toronto, Ontario Canada M5G 2K4 Tel: +1 Fax: +1 [email protected] All pages: 2. This is representative of current CANDU performance. Twenty-four CANDU reactors with a total rating of 17, MWe charged w t of D2O produced a net output of TWh electrical output in Energy derived from the uranium fuel used in (Cox) exceeded MWh thermal /kg U.

The rising fuel price and strict government regulations makes the road transport uneconomical now a days. The exterior styling and aerodynamically efficient design for reduction of engine load which reflects in the reduction of fuel consumption are the two essential factors for a successful operation in the competitive Size: 3MB.

generated by fossil fuels during the preparation of fuel and heavy water used by CANDU power plants. An estimate of the lifecycle emissions from the CANDU fuel cycle, based on this data, is provided. Review Early studies focused on the quantities of materials used by various power sources.

Although the context was to evaluate constraints on powerFile Size: KB. While its design life ended inthe PAEC worked on its life extension well before that time. Plant monitoring and periodic inspection indicated that major plant equipment, including fuel channels, steam generators, steam condensers, turbine generators, primary heat transport pumping and feeders, were all determined to be in good condition.

A PDF is a digital representation of the print book, so while it can be loaded into most e-reader programs, it doesn't allow for resizable text or advanced, interactive functionality. The eBook is optimized for e-reader devices and apps, which means that it offers a much better digital reading experience than a PDF, including resizable text and.

JTE Remaining Life Assessment of Low-Pressure Turbine Rotor Using Monte Carlo Simulation - 01 May JTE Fatigue Life Evaluation of an Annular Combustor Casing of a Gas Turbine Engine - 01 May JTE Investigation of Hygro-Thermal Cycle Effects on the Membranes of Proton Exchange Membrane Fuel Cells - 01 March The CANDU reactor has on-power (also known as “on-line”) refueling, which means that the fuel is changed routinely with the reactor operating at full power.

A fueling machine inserts new fuel into the reactor's fuel channels. A fuel transfer system brings new. Magnox is a type of nuclear power/production reactor that was designed to run on natural uranium with graphite as the moderator and carbon dioxide gas as the heat exchange coolant.

It belongs to the wider class of gas-cooled name comes from the magnesium-aluminium alloy used to clad the fuel rods inside the reactor. Like most other "Generation I nuclear reactors", the Magnox was. Improved System Performance and Reduced Cost of a Fuel Reformer, LNT, and SCR Aftertreatment System Meeting Emissions Useful Life Requirement Damodara Poojary,Jacques Nicole, James McCarthy, Jr., & Hanlong Yang Eaton Corporation DOE.

Live water systems free of sea life are one reason why the Chevron fleet runs more efficiently and economically than others.

Sincea number of Chevron Shipping Company's crude oil. A principal motivation for introducing alternative fuels is to reduce air pollution and greenhouse gas emissions. A comprehensive evaluation of the reductions must include all Life Cycle activities from the vehicle operation to the feedstock extraction.

Cited by: The CANDU spent fuel storage concept is similar, except that the small fuel assemblies are removed from the reactor horizontally and are stored that way in the spent fuel pool.

Generally the storage pools have redundant heat exchangers and pumps for cooling the pool. Pool temperature is monitored and varies between 90F and F. Fuels and Fuel Technology: A Summarized Manual, Second (SI) Edition [Francis, Wilfrid] on *FREE* shipping on qualifying offers.

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