Water accumulation phenomena in upper plenum during reflood phase of PWR-LOCA by using CCTF data.
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概要
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The water accumulation phenomena in the upper plenum of a PWR was investigated by using the data of the Cylindrical Core Test Facility (CCTF) test.<BR>When the liquid inventory in the upper plenum is small, the liquid carryover rate from the upper plenum was governed by the liquid inlet flow rate. After some amount of the water was accumulated in the upper plenum, the liquid carryover rate was governed by the steam up-flow rate and the liquid inventory in the upper plenum. The liquid carryover rate was higher with the higher steam up-flow rate and the larger liquid inventory. This trend on the liquid carryover rate was also observed in small scale model test.<BR>Based on the CCTF data, the empirical correlation on the liquid carryover rate was ob-tained.
- 一般社団法人 日本原子力学会の論文
著者
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MURAO Yoshio
Japan Atomic Energy Research Institute
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IGUCHI Tadashi
Japan Atomic Energy Research Institute
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