Optimization of an extra vessel electromagnetic pump for Lead–Bismuth eutectic coolant circulation in a non-refueling full-life small reactor

This study presents an optimal design of the coolant system a non-refueling full-life small reactor by analyzing space-integrated geometrical and electromagnetic variables extra vessel pump (EVEMP) for circulation lead–bismuth eutectic (LBE) coolant. The EVEMP is ideal alternative to thermal-hydraulic micro reactors as it possesses no internal structures, such impellors or sealing transportation LBE. Typically, LBE passes through annular flow channel reactor, cooled heat exchanger, then circulates back channel. thermal–hydraulic method similar natural circulation, which enhances thermal efficiency, while providing golden time cooling cores in event emergency. When forced technology was applied, achieve output power 60 MWt, higher than that achievable via (30 MWt). Accordingly, optimized Micro URANUS with rate 4196 kg/s developed pressure 73 kPa under working temperature 250 °C designed.