Experimental Study on Magnetic Induction
Properties of PVC Pipe in Electronic Anti-Fouling
Technology

Liu, Bingcheng; Li, Guanlin; Li, Yangyang; Sun, Hao; Cheng, Aiping; Jia, Wenguang

doi:10.15244/pjoes/81569

Cited by 2 publications

(2 citation statements)

References 17 publications

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“…Calcium carbonate has a thermal conductivity of 2.9 W/mK, which is less than 1% of that for metal copper (401 W/mK) [2]. Therefore, the calcium carbonate deposited on the heat exchanger can remarkably reduce heat exchange efficiency, likewise reducing the operating efficiency of the equipment and increasing the operating cost [3][4][5][6][7]. The average annual cost of cleaning and maintaining industrial production equipment due to scale is billions of dollars [2,4].…”

Section: Introductionmentioning

confidence: 99%

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Effect of Magnesium Ion Concentration on the Scale Inhibition of Heat Exchanger in Circulating Cooling Water under Alternating Electric Field

2020

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This work investigated the effect of magnesium ion concentration on the formation of mineral scale in circulating cooling water under alternating electric field treatment (AEFT) by using a self-made power plant circulating cooling water simulator. In this experiment, the circulating cooling water used was artificial hard water. Three experimental groups with different magnesium ion concentrations and three corresponding control groups were studied. Scale inhibition rate, fouling resistance, calcium ion concentration, crystal phase, and crystal morphology were discussed. Results showed that 4 mmol/L magnesium chloride promoted the formation of scale on the copper tube wall, and the average scale inhibition rate was −107.86%. When the magnesium chloride concentration was 6 mmol/L, the situation was reversed, and the average scale inhibition rate reached 59.11%. The changes in calcium ion concentration supported the scale inhibition rate. Scanning electron microscope (SEM) photos showed the change in the composition of calcium carbonate crystals. The results showed that the effect of AEFT on fouling resistance is nonlinearly related to the concentration of magnesium ions in circulating cooling water.

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Section: Introductionmentioning

confidence: 99%

“…Hence, physical water treatments may replace chemical methods. The main physical scale inhibition techniques include the use of magnetic fields, electric fields, ultrasonic waves, and RF(Radio Frequency) electric fields [2,4,6,7,12,13]. Among Appl.…”

Section: Introductionmentioning

confidence: 99%