Affiliations: [a] Qingdao University of Science & Technology, Laoshan, Qingdao, Shandong, China
Correspondence:
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Corresponding author: Wenguang Jia, Qingdao University of Science & Technology, Songling Road No. 99, Laoshan District, Qingdao city, Shandong province, China. E-mail: jwg@mails.qust.edu.cn
Abstract: Magnetic induction intensity and current are crucial factors to determine the effect of electromagnetic anti-fouling technology (EAFT). For getting the current value in the coil which was tightly wrapped around the PVC pipe, the inductance and equivalent resistance of the coil was measured by LCR meter, and the current in the circuit of the anti-fouling system was obtained by Ohm’s law. The magnetic induction intensity in the solenoid centre can be calculated by Faraday’s law. The purpose of the experiment was to find the optimal output parameters of EAFT and explored the anti-fouling effect. Therefore, we established an experimental platform to optimize the output parameters and explore the effect of different output frequency on solution conductivity and particle diameter. Through experiments, it’s found that current in the coil was reduced with increasing frequency, the number of turns and the diameter. As the frequency and diameter increase, the magnetic induction intensity reduced, and the turns basically no impact on the magnetic induction intensity. The hardness solution of 10 mol ⋅ m−3 (as CaCO3) is treated by four different frequencies electromagnetic field shows that the lower the frequency, the greater decrease in conductivity and the greater increase in particle size, that phenomenon verifying that the higher current and stronger magnetic field intensity has a better anti-fouling effect.
Keywords: Electromagnetic anti-fouling technology, current, magnetic induction, conductivity, particle diameter
