Download or read book Some Nuclear Calculations of U235 D2O Gaseous core Cavity Reactors written by Robert G. Ragsdale and published by . This book was released on 1961 with total page 36 pages. Available in PDF, EPUB and Kindle. Book excerpt: The results of a multigroup, diffusion theory study of spherical gaseous-core cavity reactors are presented in this report. The reactor cavity of gaseous U235 is enclosed by a region of hydrogen gas and is separated from an external D2O moderator-reflector by a zirconium structural shell. Some cylindrical reactors are also investigated. A parametric study of spherical reactors indicates that, for the range of variables studied, critical mass increases as: (1) Fuel region is compressed within the reactor cavity, (2) moderator thickness is decreased, (3) structural shell thickness is increased, and (4) moderator temperature is increased. A buckling analogy is used to estimate the critical mass of fully reflected cylindrical reactors from spherical results without fuel compression. For a reactor cavity of a 120-centimeter radius uniformly filled with fuel, no structural shell, a moderator temperature of 70 F, and a moderator thickness of 100 centimeters, the critical mass of a spherical reactor is 3.1 kilograms while that of a cylinder with a length-to-diameter ratio of 1.0 (L/D = 1) is approximately 3.8 kilograms and, with L/D = 2, 5.9 kilograms. For the range of variables considered for U235-D2O gaseous-core cavity reactors, the systems are characterized by 95 to 99 percent thermal absorptions, with the flux reaching a maximum in the moderator about 10 to 15 centimeters from the reactor cavity.
Download or read book Some Nuclear Calculations of U235 D2O Gaseous core Cavity Reactors written by Robert G. Ragsdale and published by . This book was released on 1961 with total page 38 pages. Available in PDF, EPUB and Kindle. Book excerpt: The results of a multigroup, diffusion theory study of spherical gaseous-core cavity reactors are presented in this report. The reactor cavity of gaseous U235 is enclosed by a region of hydrogen gas and is separated from an external D2O moderator-reflector by a zirconium structural shell. Some cylindrical reactors are also investigated. A parametric study of spherical reactors indicates that, for the range of variables studied, critical mass increases as: (1) Fuel region is compressed within the reactor cavity, (2) moderator thickness is decreased, (3) structural shell thickness is increased, and (4) moderator temperature is increased. A buckling analogy is used to estimate the critical mass of fully reflected cylindrical reactors from spherical results without fuel compression. For a reactor cavity of a 120-centimeter radius uniformly filled with fuel, no structural shell, a moderator temperature of 70 F, and a moderator thickness of 100 centimeters, the critical mass of a spherical reactor is 3.1 kilograms while that of a cylinder with a length-to-diameter ratio of 1.0 (L/D = 1) is approximately 3.8 kilograms and, with L/D = 2, 5.9 kilograms. For the range of variables considered for U235-D2O gaseous-core cavity reactors, the systems are characterized by 95 to 99 percent thermal absorptions, with the flux reaching a maximum in the moderator about 10 to 15 centimeters from the reactor cavity.
Download or read book Some Nuclear Calculations of U 235 d20 Gaseous core Cavity Reactors written by ROBERT G. RAGSDALE and published by . This book was released on 1961 with total page 1 pages. Available in PDF, EPUB and Kindle. Book excerpt: The results of a multigroup, diffusion theory study of spherical gaseous-core cavity reactors are presented. The reactor cavity of gaseous U235 is enclosed by a region of drogen gas and is separated from an external D2O moderatorreflector by a zirconium structural shell. Some cylindrical reactors are also investigated. (Author).
Download or read book Two dimensional Criticality Calculations of Gaseous core Cylindrical cavity Reactors written by Robert E. Hyland and published by . This book was released on 1963 with total page 40 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Gaseous fueled Cavity Reactors criticality Calculations and Analysis written by and published by . This book was released on 1966 with total page 172 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book NASA Technical Note written by and published by . This book was released on 1963 with total page 442 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Nuclear Science Abstracts written by and published by . This book was released on 1972 with total page 1684 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Reactor Technology written by and published by . This book was released on 1970 with total page 876 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book NASA SP written by and published by . This book was released on 1971 with total page 454 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Monthly Catalog of United States Government Publications written by and published by . This book was released on 1961 with total page 1878 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Power Reactor Technology and Reactor Fuel Processing written by and published by . This book was released on 1967 with total page 1110 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Guides to Information Sources in Science and Technology A guide to information sources in space science and technology ed by B M Fry and F E Mohrhardt written by Bernard Mitchell Fry and published by . This book was released on 1963 with total page 612 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Nuclear Rocket Propulsion written by NASA - Conference on the Science and Technology of Space Exploration, Chicago, 1962 and published by . This book was released on 1963 with total page 72 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Research on Uranium Plasmas and Their Technological Applications written by Karlheinz Thom and published by . This book was released on 1971 with total page 442 pages. Available in PDF, EPUB and Kindle. Book excerpt: Uranium plasmas applied to nuclear rocket engines, MHD generators, nuclear lasers, and plasma stability and flow - conference.
Download or read book Astronautics Information written by Jet Propulsion Laboratory (U.S.) and published by . This book was released on 1961 with total page 376 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Nuclear Science Abstracts written by and published by . This book was released on 1972-04 with total page 1068 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Monthly Catalog of United States Government Publications Cumulative Index written by United States. Superintendent of Documents and published by . This book was released on 1980 with total page 1284 pages. Available in PDF, EPUB and Kindle. Book excerpt:
