Optimization of the Lorentz force in an electromagnetic pump by the surface response method with numerical solution of Maxwell equations in three dimensions and comparison with experimental results
Transporting molten metals is one of challenges in industries. Dangers for human, oxidation, torbulance and reduction of equipment life are problems of the transportation. Electromagnetic pumps have solved problems of using molten containers and also mechanical pumps. In this paper, by examining the effect of main parameters in the design of a direct current electromagnetic pump with a rectangular cross section (magnetic field size, electric current applied to the fluid, channel height and width) by the surface response method, the pump output including flow velocity and The Lorentz force is optimized. The results show that the amount of electric current applied to the fluid has the greatest effect on the response surfaces. It is also found that changing the channel width had little effect on responses. However, reducing the channel height has a positive effect on the response levels. By creating a magnetic field of 0.3 Tesla and a current of 12 amps on a channel with dimensions of 30 X 10 mm, the fluid with a velocity of 0.27 m⁄s is displaced by a volumetric force of 5000N⁄m^3. The method used in this paper optimized the output parameter of the pump. Experimental tests verify the results of simulations, including the maximum pumping height, pump flow and fluid velocity in the pump.
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