銀ゼオライトを用いたFCVSの高度化

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書誌事項

タイトル別名
  • Advancement of FCVS using Silver Zeolite
  • (10) Rippling Suppression and Reduction of Entrainment by the Perforated Plates
  • (10)多孔板による波立抑制とエントレインメント削減

抄録

<p>A filtered containment venting system (FCVS) is considered an effective system that can enhance the capability to suppress or prevent severe accidents by reducing the pressure, steam water, and flammable gas in containment vessels. The water inventory in a wet-type FCVS plays an important role that affecting the retention efficiency of FCVS. However, a high water level of the FCVS may affect the performance of the liquid droplet separator due to the high entrainment rate. To overcome this, in this study, perforated metal sheet plates were installed on the upper part of the large-scale FCVS to decrease the entrainment rate. The void fraction measurements and entrainment rate estimation were carried out for FCVS with and without the punching plates. It showed that the perforated plates have significant contributions to decreasing the entrainment rate of FCVS, therefore, it allows to increase in the initial water level of the scrubber tank.</p>

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