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Author : Suxu Sun
Publisher :
ISBN 13 :
Total Pages : 172 pages
Book Rating : 4.:/5 (286 download)
Download or read book Scoping Study on Boiling Water Reactor In-core Nuclear Fuel Management Optimization written by Suxu Sun and published by . This book was released on 1993 with total page 172 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Ross Daniel Hays
Publisher :
ISBN 13 :
Total Pages : 60 pages
Book Rating : 4.:/5 (32 download)
Download or read book Boiling Water Reactor In-core Fuel Management Through Parallel Simulated Annealing in FORMOSA-B written by Ross Daniel Hays and published by . This book was released on 2009 with total page 60 pages. Available in PDF, EPUB and Kindle. Book excerpt: Keywords: boiling water reactor, BWR, optimization, fuel management, nuclear, simulated annealing, parallel computing.
Author : Koji Nishida
Publisher : Elsevier
ISBN 13 : 012821368X
Total Pages : 618 pages
Book Rating : 4.1/5 (282 download)
Download or read book Boiling Water Reactors written by Koji Nishida and published by Elsevier. This book was released on 2023-01-28 with total page 618 pages. Available in PDF, EPUB and Kindle. Book excerpt: Boiling Water Reactors, Volume Four in the JSME Series on Thermal and Nuclear Power Generation compiles the latest research in this very comprehensive reference that begins with an analysis of the history of BWR development and then moves through BWR plant design and innovations. The reader is guided through considerations for all BWR plant features and systems, including reactor internals, safety systems and plant instrumentation and control. Thermal-hydraulic aspects within a BWR core are analyzed alongside fuel analysis before comparisons of the latest BWR plant life management and maintenance technologies to promote safety and radiation protection practices are covered. The book's authors combine their in-depth knowledge and depth of experience in the field to analyze innovations and Next Generation BWRs, considering prospects for a variety of different BWRs, such as High-Conversion-BWRs, TRU-Burner Reactors and Economic Simplified BWRs. Written by experts from the leaders and pioneers in nuclear research at the Japanese Society of Mechanical Engineers Includes real examples and case studies from Japan, the US and Europe to provide a deeper learning opportunity with practical benefits Considers societal impacts and sustainability concerns and goals throughout the discussion Explores BWR plant design, thermal-hydraulic aspects, the reactor core and plant life management and maintenance in one complete resource
Author : Richard Bartholomew Stout
Publisher :
ISBN 13 :
Total Pages : 316 pages
Book Rating : 4.:/5 (142 download)
Download or read book Optimization of In-core Nuclear Fuel Management in a Pressurized Water Reactor written by Richard Bartholomew Stout and published by . This book was released on 1972 with total page 316 pages. Available in PDF, EPUB and Kindle. Book excerpt: Fuel loading patterns which have a minimum power peak are economically desirable to allow power reactors to operate at the highest possible power density and to minimize the possibility of fuel failure. A computer code called SHUFLE was developed for pressurized water reactors which shuffles the fuel in search of the lowest possible power peaking factor. An iterative approach is used in this search routine. A radial power distribution is calculated from which the program logic Selects a movement of fuel elements in an attempt to lower the radial power peak. Another power calculation is made and the process repeated until a predetermined convergence is reached. The logic by which the code decides the fuel movement is presented, along with the criteria for accepting or rejecting the move after a power calculation of the new loading pattern is made. A 1.5 group course mesh diffusion theory method was used to obtain the power distribution for each SHUFLE iteration. Convergence to a final loading pattern varies from about 10 to 40 shuffling iterations depending on the initial loading presented to the code. Since the typical computer running time for a one-quarter core power distribution with this 1.5 group method is only one to a few seconds, depending on the loading, convergence to a good loading pattern takes on the order of one minute on a Univac 1108. The low computer cost plus ease of operation should make this code of considerable use in determining loading patterns with minimum power peaking for any given set of fuel elements. The program also has burnup capability which can be used to check power peaking throughout core life. A parametric analysis study of fuel cycle costs for a PWR is also presented. Cost parameters analyzed were variation in the cost of yellow cake, enrichment, money, fabrication, and reprocessing plus changes in burnup, load factors, power densities, and the effect of forced early discharge. Figures are presented to indicate total fuel costs as a function of burnup for these cost parameters. Linear relationships for minimum cost and optimum burnup are presented for each parameter.
Author :
Publisher :
ISBN 13 :
Total Pages : 64 pages
Book Rating : 4.3/5 (91 download)
Download or read book Fuel Cycle Program - a Boiling Water Reactor Research and Development Program written by and published by . This book was released on 1960-08 with total page 64 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : U.S. Atomic Energy Commission
Publisher :
ISBN 13 :
Total Pages : 56 pages
Book Rating : 4.3/5 (91 download)
Download or read book Boiling Water Reactors written by U.S. Atomic Energy Commission and published by . This book was released on 1959 with total page 56 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Keith Everette Ottinger
Publisher :
ISBN 13 :
Total Pages : 140 pages
Book Rating : 4.:/5 (115 download)
Download or read book Multi-cycle Boiling Water Reactor Fuel Cycle Optimization written by Keith Everette Ottinger and published by . This book was released on 2014 with total page 140 pages. Available in PDF, EPUB and Kindle. Book excerpt: A multi-cycle nuclear fuel cycle optimization code, BWROPT (Boiling Water Reactor OPTimization), has been developed. BWROPT uses the Parallel Simulated Annealing (PSA) algorithm to solve the coupled out-of-core and in-core optimization problems. There are two depletion methods used for the in-core optimization: the Haling depletion and a Control Rod Pattern (CRP) search. The result of this optimization is the optimum new fuel inventory and the core loading pattern for the first cycle considered in the optimization. Several changes were made to the optimization algorithm with respect to other nuclear fuel cycle optimization codes that use PSA. Instead of using constant sampling probabilities for the solution perturbation types throughout the optimization, as is usually done, the sampling probabilities can be varied to get a better solution and/or decrease runtime. Also, the new fuel types available for use can be sorted into an array based on any parameter so that each parameter can be incremented or decremented. In addition several evaluations were performed to test the CRP search option. Using the variable sampling probabilities was found to produce slightly better results in less time than the standard method of having constant sampling probabilities. Performing ordered and random sampling of the new fuel types using the new fuel type array was found to yield slightly better solutions on average than random sampling alone, but with a somewhat higher runtime. Using variable length Markov chains for optimizations in which a CRP search is performed for the first cycle and the Haling depletion is used for the remaining cycles was found to increase CPU utilization by 33%. Starting the CRP search with the CRP determined for the previous solution was found to be better than starting the CRP search with all of the rods fully withdrawn. Using the CRP search in an optimization was slow and produced inferior results compared to using the Haling depletion, indicating the need for more work in this area.
Download or read book Boiling Water Reactor In-Core Fuel Management Through Parallel Simulated Annealing in FORMOSA-B. written by and published by . This book was released on 2004 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: A commercial nuclear power plant with a boiling water reactor will utilize between 368 and 800+ individual fuel assemblies to generate steam for 18 to 24 months between refueling outages. The composition and reactivity of each fuel assembly will vary due to variations in initial enrichment, burnable poison loading and irradiation conditions in the core. These variations pose a challenge to the engineers who must design subsequent reloads because only one quarter to one half of the fuel will be replaced at a time. One of the challenges is to determine the optimum layout of the fuel within the core in order to get the highest value from the fuel without violating any safety or operational limits. The FORMOSA-B program was developed to automatically find a family of optimum loading patterns by combining a robust, accurate 3-D core simulator with a simulated annealing loading pattern search. Other features have been added to allow the program to rapidly compute shutdown margins and optimize control rod programming through the application of heuristic rules. One drawback of the FORMOSA-B program is that long run-times, sometimes exceeding a week, are required to generate and evaluate the large numbers of solutions required by the simulated annealing algorithm. The rising popularity and availability of parallel computing and computational clusters provides a possible solution to the problem of long run-times. To this end, a parallel simulated annealing capability has been developed for the FORMOSA-B program. The parallel simulated annealing driver utilizes standardized Message Passing Interface routines to divide the individual Markov search chains of the simulated annealing algorithm among a large number of processors. By evaluating multiple loading patterns concurrently, run times are significantly reduced. In testing with a 368-assembly BWR/4 model, parallel speedup factors exceeding 32 were observed with 48 processors. Parallel efficiencies are calculated to be in the.
Author : Lance Neville Otis
Publisher :
ISBN 13 :
Total Pages : 336 pages
Book Rating : 4.:/5 (228 download)
Download or read book Pressurized Water Reactor Fuel Management Optimization written by Lance Neville Otis and published by . This book was released on 1970 with total page 336 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Shih Hsi Yeh
Publisher :
ISBN 13 :
Total Pages : 0 pages
Book Rating : 4.:/5 (141 download)
Download or read book In-core fuel management for boiling water reactors written by Shih Hsi Yeh and published by . This book was released on 1982 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Chad D. Burns (III.)
Publisher :
ISBN 13 :
Total Pages : 40 pages
Book Rating : 4.:/5 (862 download)
Download or read book Optimization Algorithms in Boiling Water Reactor Lattice Design written by Chad D. Burns (III.) and published by . This book was released on 2013 with total page 40 pages. Available in PDF, EPUB and Kindle. Book excerpt: Given the highly complex nature of neutronics and reactor physics, efficient methods of optimizing are necessary to effectively design the core reloading pattern and operate a nuclear reactor. The current popular methods for optimization are Simulated Annealing and the Genetic Algorithm; this paper explores the potential for a new method called Greedy Exhaustive Dual Binary Swaps (GEDBS). The mandatory trade-off in computation is accuracy for speed; GEDBS is an exhaustive search and tends toward longer runtimes. While GEDBS performed acceptably for the criterion administered in this paper (local peaking and k, on a Boiling Water Reactor (BWR) fuel lattice) the exhaustive nature of GEDBS will inevitably lead to combinatorial explosion for the addition of the potential dozens of factors that commercial application mandates. This issue may be resolved with the addition of metaheuristics to reduce the search space for GEDBS, or by an increasing computation.
Author : L. E. Strawbridge
Publisher :
ISBN 13 :
Total Pages : 246 pages
Book Rating : 4.3/5 (91 download)
Download or read book Optimization Study for Large Pressurized Water Reactor Cores written by L. E. Strawbridge and published by . This book was released on 1964 with total page 246 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Shafiq Y. Hurani
Publisher :
ISBN 13 :
Total Pages : 198 pages
Book Rating : 4.:/5 (11 download)
Download or read book Optimal In-Core Fuel Management for the Pressurized Water Reactor written by Shafiq Y. Hurani and published by . This book was released on 1980 with total page 198 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Michael Lorne Fensin
Publisher :
ISBN 13 :
Total Pages : pages
Book Rating : 4.:/5 (568 download)
Download or read book Optimum Boiling Water Reactor Fuel Design Strategies to Enhance Reactor Shutdown by the Standby Liquid Control System written by Michael Lorne Fensin and published by . This book was released on 2004 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: ABSTRACT: Licensing a commercial nuclear reactor core involves a stringent amount of calculations that demonstrate the capability of safe reactor shutdown in the instance of an emergency transient event. In a boiling water nuclear reactor the control blades and standby liquid control system are the two independent redundant safety systems utilized for shutting down the reactor. In past fuel designs lower power cores with smaller cycle lengths resulting from lower core average enrichment caused shutdown by the control blades to be the most limiting strategy of the two modes for reactor shutdown. This led to a lesser focus on fuel design strategies for standby liquid control system margin (SLCS). Advanced modern core designs involve higher powers and increased cycle lengths resulting from higher core average enrichments, therefore causing SLCS to now become a more significant shutdown parameter.
Download or read book Boiling Water Reactor Uranium Utilization Improvement Potential written by and published by . This book was released on 1980 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: This report documents the results of design and operational simulation studies to assess the potential for reduction of BWR uranium requirements. The impact of the improvements on separative work requirements and other fuel cycle requirements also were evaluated. The emphasis was on analysis of the improvement potential for once-through cycles, although plutonium recycle also was evaluated. The improvement potential was analyzed for several design alternatives including axial and radial natural uranium blankets, low-leakage refueling patterns, initial core enrichment distribution optimization, reinsert of initial core discharge fuel, preplanned end-of-cycle power coastdown and feedwater temperature reduction, increased discharge burnup, high enrichment discharge fuel rod reassembly and reinsert, lattice and fuel bundle design optimization, coolant density spectral shift with flow control, reduced burnable absorber residual, boric acid for cold shutdown, six-month subcycle refueling, and applications of a once-through thorium cycle design and plutonium recycle.
Author : David Brent Bandy
Publisher :
ISBN 13 :
Total Pages : pages
Book Rating : 4.:/5 (718 download)
Download or read book Optimization of a Boiling Water Reactor written by David Brent Bandy and published by . This book was released on 1966 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Ian Crossland
Publisher : Elsevier
ISBN 13 : 0857096389
Total Pages : 649 pages
Book Rating : 4.8/5 (57 download)
Download or read book Nuclear Fuel Cycle Science and Engineering written by Ian Crossland and published by Elsevier. This book was released on 2012-09-21 with total page 649 pages. Available in PDF, EPUB and Kindle. Book excerpt: The nuclear fuel cycle is characterised by the wide range of scientific disciplines and technologies it employs. The development of ever more integrated processes across the many stages of the nuclear fuel cycle therefore confronts plant manufacturers and operators with formidable challenges. Nuclear fuel cycle science and engineering describes both the key features of the complete nuclear fuel cycle and the wealth of recent research in this important field. Part one provides an introduction to the nuclear fuel cycle. Radiological protection, security and public acceptance of nuclear technology are considered, along with the economics of nuclear power. Part two goes on to explore materials mining, enrichment, fuel element design and fabrication for the uranium and thorium nuclear fuel cycle. The impact of nuclear reactor design and operation on fuel element irradiation is the focus of part three, including water and gas-cooled reactors, along with CANDU and Generation IV designs. Finally, part four reviews spent nuclear fuel and radioactive waste management. With its distinguished editor and international team of expert contributors, Nuclear fuel cycle science and engineering provides an important review for all those involved in the design, fabrication, use and disposal of nuclear fuels as well as regulatory bodies and researchers in this field. Provides a comprehensive and holistic review of the complete nuclear fuel cycle Reviews the issues presented by the nuclear fuel cycle, including radiological protection and security, public acceptance and economic analysis Discusses issues at the front-end of the fuel cycle, including uranium and thorium mining, enrichment and fuel design and fabrication
