Author: Publisher:
ISBN:
Category :
Languages : en
Pages : 0
Book Description
Calculation of the Isothermal Doppler Coefficient for the Southwest Experimental Fast Oxide Reactor (SEFOR).
Author: Calculation of Doppler Coefficient and Other Safety Parameters for a Large Fast Oxide Reactor
Author: P. GreeblerPublisher:
ISBN:
Category : Fast reactors
Languages : en
Pages : 48
Book Description
TID.
Author: Nuclear Science Abstracts
Author: Doppler Calculations for Large Fast Ceramic Reactors
Author: P. GreeblerPublisher:
ISBN:
Category : Fast reactors
Languages : en
Pages : 94
Book Description
CALCULATION OF DOPPLER COEFFICIENT AND OTHER SAFETY PARAMETERS FOR A LARGE FAST OXIDE REACTOR.
Author: Publisher:
ISBN:
Category :
Languages : en
Pages :
Book Description
Several safety parameters are calculated for a large, fast, Na-cooled, oxide-fueled reactor. The Doppler coefficient is studied as regards its effect on the reactivity during a power excursion, and its dependence on the neutron spectrum, on the concentrations of U238, Pu 239, a nd Pu24°, on spatial temperature and power distributions, and on temperature. Other parameters studied include the Na temperature coefficient of reactivity, and the reactivity insertion caused by total Na loss; reactivity coefficients caused by thermal expansion of fuel and steel cladding; the excess operating reactivity; and the reactivity caused by a fuel slump. The effects of a Be reflector on neutron lifetimes are determined. The safety aspects are balanced against economic considerations. (T.F.H.).
Government Reports Index
Author: Publisher:
ISBN:
Category : Government publications
Languages : en
Pages : 1074
Book Description
Scientific and Technical Aerospace Reports
Author: Analysis of the SEFOR I and II Doppler Experiments and Their Use in Assessing the Accuracy of Calculated Fast Reactor Doppler Effects
Author: A. T. D. ButlandPublisher:
ISBN: 9780851820415
Category :
Languages : en
Pages :
Book Description
Calculations of the Doppler Coefficient of Large Ceramic-fueled Fast Reactors
Author: M. G. BhidePublisher:
ISBN:
Category : Cross sections (Nuclear physics)
Languages : en
Pages : 50
Book Description
Calculations of the Doppler coefficient of large, ceramic-fueled fast reactors containing plutonium were made by means of the ELMOE program to provide accurate flux calculations. The temperature-dependent cross sections of P. Greebler et al., for U-238 and plutonium-239 were used. Doppler coefficients of the order of 105 intermediate temperature k/ C were obtained, in agreement with Greebler's results. Coefficients of carbide fueled reactors are about 0.7 of those of oxide-fueled reactors at the same fuel enrichment. Effective coarse-group elastic-removal cross sections for light elements are tabulated. It appears that, with tabulations of this sort as a guide, coarse-group sets of cross sections can be constructed to give adequate accuracy in calculations of Doppler coefficients without use of ELMOE.