Abstract
The electromagnetic pump (EMP) was developed to overcome the capacity and efficiency limitations of previous machines. This paper proposes a flux-concentration-type electromagnetic pump using that the flux-concentration effect, which depends on eddy currents, and discusses the calculated and experimental dynamic characteristics of an in-sodium tests system. According to the experimental results, the maximum flow rate was 520 l/m and the efficiency was over 10%. The calculated results estimate that the pressure of the new EMP is 1.7 times more than that of a conventional one. A new configuration of the EMP is proposed to increase the capacity of the flow rate, and its dynamic characteristics are discussed.
