Download or read book The Determination of Lattice Parameters by Means of Measurements on a Single Fuel Element written by J. W. Zink and published by . This book was released on 1960 with total page 38 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book The Use of Experiments on a Single Fuel Element to Determine the Nuclear Parameters of Reactor Lattices written by E. E. Pilat and published by . This book was released on 1967 with total page 360 pages. Available in PDF, EPUB and Kindle. Book excerpt: The nuclear parameters of a reactor lattice may be determined by critical experiments on that lattice, by theoretical calculations in which only cross sections are used as input, or by methods which combine theory and experiment. Of those methods which combine theory and experiment, the Single Element Method, abbreviated SEM, is shown to have great usefulness. As used here, the method combines experiments on the smallest meaningful unit of fuel - a single fuel element - with a theory which relates the behavior of a lattice of such elements to the experimentally determined behavior of the single element. This particular division of the problem into theory and experiment is useful for at least three reasons. First, several parameters which characterize a reactor lattice - the thermal utilization and resonance escape probability, for example - often depend strongly and in a complicated manner on the properties of individual fuel elements, but only depend weakly or in a simple manner on interactions between the fuel elements. In the Single Element Method, the largest contribution to these parameters is determined by measurements on a single fuel element, and only a relatively small correction to account for the presence of the rest of the fuel elements need be estimated theoretically. Second, the determination of lattice parameters in this way represents a desirable saving of time, money, effort, and material over their determination in critical or exponential experiments. Third, it is shown that the method provides an excellent way of correlating the results of experimental measurements, since it shows what pertinent variables must be used to express the quantity of interest in a linear or nearly linear fashion. Values obtained by the SEM for the thermal utilization of lattices of uranium rods in heavy water are accurate to about 0.3 percent (by comparison with THERMOS). Values of P28, 28, and C* are obtained by the SEM for the same lattices to an accuracy of between five and ten percent (by comparison with experiment). The same method yields values of 28 with are equally accurate in lattices moderated by light water. In addition, the theoretical development of the SEM predicts that P28, 28, C*, and 625 should vary nearly linearly with the inverse of the unit cell volume (for a fixed size of fuel element). This explains the experimentally observed behavior and provides an important tool for the rational correlation of experimental results.
Download or read book Nuclear Science Abstracts written by and published by . This book was released on 1974 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Advances in Nuclear Science and Technology written by Ernest J. Henley and published by Academic Press. This book was released on 2014-05-12 with total page 389 pages. Available in PDF, EPUB and Kindle. Book excerpt: Advances in Nuclear Science and Technology, Volume 2 provides an authoritative, complete, coherent, and critical review of the nuclear industry. This book discusses the advances in the atomic energy field. Organized into six chapters, this volume begins with an overview of the concept of transfer function of a system. This text then examines the classic plant cycles for the water-cooled, liquid metal, and gas-cooled reactor concepts to pinpoint those points in cycle that require nuclear grade heat exchanger equipment. Other chapters consider heat exchanger, which is applied to the full spectrum of apparatus and equipment designed to facilitate the flow of heat from medium to medium. This book discusses as well the hardware characteristics and the resulting effects on reactor calculations. The final chapter deals with the effect of digital computers on nuclear reactor calculations and discusses some of the numerical methods used in nuclear reactor codes. This book is a valuable resource for design engineers and plant operating personnel.
Download or read book List of References on Nuclear Energy written by International Atomic Energy Agency and published by . This book was released on 1960 with total page 612 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book TID written by and published by . This book was released on 1961 with total page 188 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Criticality written by R. L. Scott and published by . This book was released on 1961 with total page 184 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Scientific and Technical Aerospace Reports written by and published by . This book was released on 1968 with total page 312 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Bibliography of Scientific and Industrial Reports written by and published by . This book was released on 1960 with total page 986 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Nuclear Science and Engineering written by and published by . This book was released on 1978 with total page 624 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Reactor Physics Project Final Report written by Michael J. Driscoll and published by . This book was released on 1970 with total page 137 pages. Available in PDF, EPUB and Kindle. Book excerpt: This is the final report in an experimental and theoretical program to develop and apply single- and few-element methods for the determination of reactor lattice parameters. The period covered by the report is January 1, 1968 through September 30, 1970. In addition to summarizing results for the entire contract period, this report also serves as the final annual report; thus, work completed in the period of October 1, 1969 through September 30, 1970 is dealt with in more detail than the earlier work. Methods were developed to measure the heterogeneous parameters 17, [Gamma] [eta] and [Alpha] for single fuel elements immersed in moderator in an exponential tank using foil activation measurements external to the fuel. These methods were applied to clustered fuel rods in D 20 moderator and single fuel rods in H 20 moderator, and the results were extended to and compared with data on complete multi-element lattices reported by other laboratories. Advanced gamma spectrometric methods using Ge(Li) detectors were applied to the analysis of both prompt and fission product decay gammas for the nondestructive analysis of the fuel used in this work. The latter includes both simulated burned fuel containing plutonium and actual burned fuel irradiated to 20,000 MWD/T in the Dresden BWR.
Download or read book Annual Technical Progress Report written by and published by . This book was released on 1961 with total page 570 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Measurements of Reactor Parameters in Subcritical and Critical Assemblies written by Irving Kaplan and published by . This book was released on 1962 with total page 68 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book ERDA Energy Research Abstracts written by United States. Energy Research and Development Administration and published by . This book was released on 1977 with total page 900 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Measurements of Neutron Capture in U238 in Lattices of Uranium Rods in Heavy Water written by Abraham Weitzberg and published by . This book was released on 1962 with total page 158 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book ERDA Energy Research Abstracts written by United States. Energy Research and Development Administration. Technical Information Center and published by . This book was released on 1977 with total page 1066 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Transactions of the American Nuclear Society written by and published by . This book was released on 1973 with total page 1114 pages. Available in PDF, EPUB and Kindle. Book excerpt:
