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An electromagnetic pump is a pump that moves liquid metal, molten salt,
A magnetic field (brc) always exists around the current (I)-carrying conductor. When this current-carrying conductor is subjected to an external magnetic field (Bap), the conductor experiences a force perpendicular to the direction of I and Bap. This is because the magnetic field produced by the conductor and the applied magnetic field attempt to align with each other. A similar effect can seen between two ordinary magnets.
This principle is used in an electromagnetic pump. The current is fed through a conducting liquid. Two permanent magnets are arranged to produce a magnetic field Bap as shown in the figure. The supplied current has a current density (J) and the magnetic field associated with this current can be called "Reaction magnetic Field (brc)". The two magnetic fields Bap and brc attempt to align with each other. This causes mechanical motion of the fluid.
The Electromagnetic Pump
Lecture Demonstration Manual, University of Melbourne (archived)
Analysis and Design of Electromagnetic Pump
2010
Carli Precimeter GmbH (archived) Pumps {{Electromagnetism-stub
brine
Brine is a high-concentration solution of salt (NaCl) in water (H2O). In diverse contexts, ''brine'' may refer to the salt solutions ranging from about 3.5% (a typical concentration of seawater, on the lower end of that of solutions used for br ...
, or other electrically conductive liquid using electromagnetism.
A magnetic field
A magnetic field is a vector field that describes the magnetic influence on moving electric charges, electric currents, and magnetic materials. A moving charge in a magnetic field experiences a force perpendicular to its own velocity and to ...
is set at right angles to the direction the liquid moves in, and a current is passed through it. This causes an electromagnetic force that moves the liquid.
Applications include pumping molten solder in many wave soldering machines, pumping liquid-metal coolant, and magnetohydrodynamic drive.
Working principle
A magnetic field (brc) always exists around the current (I)-carrying conductor. When this current-carrying conductor is subjected to an external magnetic field (Bap), the conductor experiences a force perpendicular to the direction of I and Bap. This is because the magnetic field produced by the conductor and the applied magnetic field attempt to align with each other. A similar effect can seen between two ordinary magnets.
This principle is used in an electromagnetic pump. The current is fed through a conducting liquid. Two permanent magnets are arranged to produce a magnetic field Bap as shown in the figure. The supplied current has a current density (J) and the magnetic field associated with this current can be called "Reaction magnetic Field (brc)". The two magnetic fields Bap and brc attempt to align with each other. This causes mechanical motion of the fluid.
Einstein–Szilard electromagnetic pump
Designed for the Einstein–Szilard electromagnetic refrigerator (not the pumpless Einstein refrigerator), it useselectromagnetic induction
Electromagnetic or magnetic induction is the production of an electromotive force (emf) across an electrical conductor in a changing magnetic field.
Michael Faraday is generally credited with the discovery of induction in 1831, and James Clerk ...
to move conductive liquid metal without electrodes, to compress a working gas, pentane. It is a liquid linear induction motor.
See also
* Magnetic flow meter * Magnetohydrodynamic driveReferences
Bibliography
*Baker, Richard S., Tessier, Manuel J. ''Handbook of Electromagnetic pump technology''. 1987. osti 5041159. oclc 246618050.External links
The Electromagnetic Pump
Lecture Demonstration Manual, University of Melbourne (archived)
Analysis and Design of Electromagnetic Pump
2010
Carli Precimeter GmbH (archived) Pumps {{Electromagnetism-stub