Optimization study of high conversion light water reactor with axially heterogeneous core

; Okumura, Keisuke; ; *; *

JAERI-M 92-030, 68 Pages, 1992/03

JAERI-M-92-030.pdf:1.66MB

no abstracts in English

Control rod effects on reaction rate distributions in tight pitched PuO-UO fuel assembly

C-S.Gil*; Okumura, Keisuke;

JAERI-M 91-200, 61 Pages, 1991/11

JAERI-M-91-200.pdf:1.26MB

no abstracts in English

Conceptual design study of high conversion light water reactor

Okumura, Keisuke; ; Mori, Takamasa; Nakakawa, Masayuki;

JAERI-M 90-096, 169 Pages, 1990/06

JAERI-M-90-096.pdf:5.02MB

no abstracts in English

The Concept of axially heterogeneous high conversion light water reactor and its application

Okumura, Keisuke; ;

Proc. of Int. Conf. on the Physics of Reactors; Operation, Design and Computation, Vol. 4, p.101 - 110, 1990/00

no abstracts in English

Production of fast reactor group constant set JFS3-J3T and analysis of ZPPR-9

Takano, Hideki*; Kaneko, Kunio*; Ishiguro, Yukio*

PNC TJ9500 89-001, 75 Pages, 1989/03

PNC-TJ9500-89-001.pdf:1.82MB

The fast reactor 70-group constant set JFS-3-J3T has been generated by using the JENDL-3T nuclear data. One-dimensional benchmark calculations and the analyses of the ZPPR-9 and FCA-VI-2 assemblies were performed with the JFS-3-J3T set. The results obtained are summarized as follows: (1)The k's are underestimated by 0.6% for Pu-fuel cores and overestimated by 2% for U-fuel cores. (2)The central reaction rate ratio (Pu-239)/(U-235)is in a good agreement with the experimental value and (U-238)/(Pu-239) is overestimated. (3)Doppler and Na-void reactivities are in a good agreement with the measured data. (4)The radial reaction rate distributions are improved in the comparison of the results obtained with the JENDL-2 data. Furthermore, the benchmark test of JENDL-3T/Rev.1 which was revised for several important nuclides on the basis of the results described above has been performed. It was shown that JENDL-3T/Rev.1 predicted nuclear characteristics more satisfactory than JENDL-2, excepting the overestimate for the reaction rate ratios of (U-238)/(Pu-239) and (U-238)/(U-235).

Core burnup calculation method for spectral shift reactor using fertile rod

Okumura, Keisuke; ; *

Journal of Nuclear Science and Technology, 25(12), p.948 - 951, 1988/12

https://doi.org/10.3327/jnst.25.948

no abstracts in English

Core burnup characteristics of high conversion light water reactor, I; Core analysis for HCLWR-J1(V/V=0.8)

Okumura, Keisuke; ; *

JAERI-M 88-129, 68 Pages, 1988/07

JAERI-M-88-129.pdf:1.88MB

no abstracts in English

The effect of fission products on burnup characteristics in high conversion light water reactors

; *; ;

Nuclear Technology, 80, p.250 - 262, 1988/00

https://doi.org/10.13182/NT88-A34049

no abstracts in English

Revised SRAC code system

; ; *; *

JAERI 1302, 281 Pages, 1986/09

JAERI-1302.pdf:8.78MB

no abstracts in English

Physics Problems on Analysis of High Conversion Light Water Reactor(II)

; ; *; *

JAERI-M 86-039, 57 Pages, 1986/03

JAERI-M-86-039.pdf:1.22MB

no abstracts in English