使用済み燃料プール無電源冷却システムに関する研究

(自然循環を利用した空気冷却システムの改良)

抄録

The purpose of this study is improving the air-cooled heat exchanger of spent fuel pool cooling system. It is necessary to improve the performance of this heat exchanger to compact this system. We decided the most suitable heat exchange pipe shape by experiment. And we could increase natural circulation flow rate of the air by improving the chimney shape of the heat exchanger. Then, we succeeded in the reduction of the heat exchanger. Finally, we confirmed that the improved cooling-system without power supply could radiate heat by heat of 2MW.