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In
( = Co, Rh, Ir)Kurihara, Ryosuke*; Hirose, Yusuke; Matsui, Kazuki*; Miyake, Atsushi*; Tsunoda, Ryoma*; Kondo, Masaki*; Settai, Rikio*; Akatsu, Mitsuhiro*; Nemoto, Yuichi*; Yaguchi, Hiroshi*; et al.
JJAP Conference Proceedings (Internet), 12, p.011006_1 - 011006_6, 2026/02
no abstracts in English
Miyake, Osamu; Yamazaki, Hiroshi*; ; Himeno, Yoshiaki; Miyaguchi, Kimihide
PNC TN941 85-131, 53 Pages, 1985/08
For the analysis of sodium pool fire accidents in the LMFBR safety design, the computer codes SOFIRE-MII and ASSCOPS (the latter evaluate the pool-spray combined fires) have been utilized. In regard to the combustion phenomena of pool fire, better understanding has been obtained by experiments since the time of development of above mentioned codes. On the other hand, for the purpose of rationalization of the present LMFBR plants, the detailed analysis code is supposed to be required which can evaluate the sodium fires and their thermal effects more accurately and can remove existing conservatism of the present codes. Therefore, considering the requirement of the current status and trends, a new sodium pool fire model (SPM) has been accomplished mainly aiming at the evaluation of sodium fires under the air-filled secondary system condition. To model the actual phenomena precisely as possible, SPM takes account of the combustion flame above the pool surface, and the combustion heat and the heat transports to ambient and to the surrounding structures are estimated. To verify SPM, the comparisons of calculated results with experimental data obtained by the U.S. HEDL's CSTF and the German KfK's FAUNA facilities are presented. The comparisons with SOFIRE-II and SOFIRE-II are also discussed. Results show that the SPM predictions give reasonable agreement or somewhat overestimation, though, the pool temperature predictions are greatly improved in comparison with those of SOFIREs.
; Yamazaki, Hiroshi*; Miyake, Osamu; Kawabe, Ryuhei*; Himeno, Yoshiaki; Miyaguchi, Kimihide
PNC TN952 84-13, 159 Pages, 1984/11
In an LMFBR, the consequences of a sodium spill in the heat transport system need to be determined. Analyses of sodium fires in such accidents have been performed in use of various computer codes. At PNC, two computer codes, SPRAY-III M and SOFIRE-M II, had been utilized separately for the spray fire and for the pool fire, respectively. To provide the combined spray-pool fire calculation, ASSCOPS (Analysis of Simultaneous Sodium COmbustions in Pool and Spray), which is described in this report, has been developed as an integrated code of those codes for the computation of the pressure and temperature. This report consists of descriptions of the input and output formats and the job control procedures of ASSCOPS.
Kurihara, Ryosuke*; Matsui, Kazuki*; Tsunoda, Ryoma*; Hirose, Yusuke; Miyake, Atsushi*; Kondo, Masaki*; Akatsu, Mitsuhiro*; Nemoto, Yuichi*; Yaguchi, Hiroshi*; Settai, Rikio*; et al.
no journal, ,
no abstracts in English
