Horonobe Underground Research Laboratory project synthesis of phase I investigation 2001-2005 volume "Geological Disposal Research"

Fujita, Tomoo; Taniguchi, Naoki; Matsui, Hiroya; Tanai, Kenji; Nishimura, Mayuka; Kobayashi, Yasushi; Hiramoto, Masayuki; Maekawa, Keisuke; Sawada, Atsushi; Makino, Hitoshi; et al.

JAEA-Research 2007-045, 140 Pages, 2007/03

JAEA-Research-2007-045-1.pdf:38.33MB
JAEA-Research-2007-045-2.pdf:44.62MB

This report summarizes the progress of research and development on geological disposal during the surface-based investigation phase (2001-2005) in the Horonobe Underground Research Laboratory project (HOR), of which aims are to apply the design methods of geological disposal and mass transport analysis to actual geological environments and derive future subjects based on the results. The design methods of geological disposal were reviewed based on the recent knowledge and the advertences were identified. Then the parameters for virtual design of engineered barrier system, backfill deposition hole and tunnel were set up based on actual geological conditions obtained from the surface-based investigations in HOR as an example of actual geological environment. The conceptual structure from site investigation and evaluation to mass transport analysis was represented as a work flow at first. Then following this work flow a series of procedures for mass transport analysis were carried out based on actual geological conditions obtained from the surface-based investigations in HOR to illustrate the functioning of the work flow and the applicability of this methodology. Consequently, knowledge that will help follow-up or future execution and planning activities was obtained.

Development of knowledge management system for geologica disposal technology, 2

Umeki, Hiroyuki; Osawa, Hideaki; Naito, Morimasa; Nakano, Katsushi; Makino, Hitoshi; Miyamoto, Yoichi; Takase, Hiroyasu*; McKinley, I. G.*; Umeda, Koji; Asamori, Koichi; et al.

no journal, , 

no abstracts in English

Development of advanced neutronics/thermal-hydraulics coupling simulation system, 6; Measurement of gas-liquid two-phase flow inside a fuel bundle to obtain code validation data

Okamoto, Kaoru*; Makino, Yasushi*; Ono, Ayako; Yoshida, Hiroyuki

no journal, , 

JAEA has developed an advanced neutronics/thermal-hydraulics coupling simulation system, in which detailed two-phase flow simulation code (TPFIT or JUPITER) is applied to part of thermal-hydraulics. Those detailed codes can predict small-scale thermal-hydraulics behavior inside sub-channels of a fuel bundle, so that measurement data with high-resolutions in time and space are required to achieve the appropriate validation of the codes. In this study, Laser Doppler Velocimetry (LDV) is applied for measurements of velocity and void fraction in air-water dispersed bubbly flows. The LDV can obtain local measurement data without any disturbance to flow field. In particular, fluorescent particles are introduced for liquid velocity measurements in order to clearly distinguish recorded signals between gas and liquid phases. The measurement method and the results will be shown in this presentation.

Development of a coupling method of sodium-concrete reaction model in the integrated SFR safety analysis code SPECTRA

Aoyagi, Mitsuhiro; Makino, Toru*; Uchibori, Akihiro; Okano, Yasushi

no journal, , 

no abstracts in English