Study of Electro Magnetic Pump in a Sodium Cooled Reactor

Chikazawa, Yoshitaka ; Aizawa, Kosuke ; Konomura, Mamoru; Ara, Kuniaki 

In the feasibility study of JNC, an intermediate heat exchanger with a mechanical pump aiming to reduce material mass and floor area has been investigated. In this study, as an alternative of the intermediate heat exchanger with a mechanical pump, adaptability of an intermediate heat exchanger with electro magnetic pumps is investigated.An intermediate heat exchanger with electro magnetic pumps for a medium scale sodium cooled reactor is designed. An electromagnetic analysis is performed to determine basic specifications of electro magnetic pumps. A 3-D flow analysis shows the flow stability of the electro magnetic pump outlet and the importance of flow guide.Furthermore, a magnetic field analysis of an electro magnetic flow meter is performed, it is confirmed possibility to apply the flow meter to the main cooling system.