Importance

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Abstract

An MHD apparatus includes a solenoid coil that is symmetrically positioned about a central axis aperture. Upon energization, the coil produces an intense magnetic field along the central axis and within the aperture. A first cylinder having a first diameter is positioned in the aperture and a second cylinder which exhibits a second diameter that is less than the first diameter is positioned within the first cylinder. A helical web insulator is positioned between the first cylinder and the second cylinder and provides a helical fluid flow channel between first and second ends of the cylinders. A DC power supply is connected between the first and second cylinders, which produces a current flow that interacts with the magnetic field to exert an MHD propulsive force on seawater within the fluid flow channel. In this mode of operation, the apparatus pumps the saltwater or provides a thrust. When a flow of a conductive fluid is introduced through the helical channel, it enables an electric potential between the first cylinder and the second cylinder in the presence of the axial magnetic field. In this mode of operation, the apparatus delivers an output current when connected to a load. The MHD apparatus thus exhibits a relatively long path wherein the seawater interacts with both the radial electric field and the axial magnetic field.

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First Claim