Design of Square Induction Coils for the Electromagnetic Priming of Ceramic Foam Filters

Abstract

Ceramic Foam Filter (CFF) ElectroMagnetic (EM) priming systems with square-shaped solenoidal coils are in the process of full-scale industrialization. The demands on the EM fields used in such a system are substantially different from the requirements in the existing EM pumping systems used for liquid metals. The same fundamental physics are applied, i.e. Lorentz forces induced by time varying EM fields; however, in the present case the forces are used to overcome the metal surface energy and force metal into the cold air filled pores of the CFF instead of producing bulk metal movement.