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HomeApplied Mechanics and MaterialsApplied Mechanics and Materials Vol. 664Electromagnetic Field Acting on the Scale...

Electromagnetic Field Acting on the Scale Inhibition Experiment and Mechanism on Circulating Cooling Water of Power Plant

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Abstract:

The scale-inhibition effect of electromagnetic field was tested on circulating cooling water of power plant, and then the scale sample was analyzed by SEM and XRD. The results showed that, under optimum scale-inhibition conditions, aragonite content increased and calcite content decreased, and scale-inhibition rate was up to 78.2%; under the poorest conditions, both aragonite and calcite crystals existed, and the scale-inhibition rate was-201.0%; after treating with electromagnetic field, size of both calcite and aragonite particles decreased, making them more easily flown away and thus showing better overall scale-inhibition effect; when energy provided by the electromagnetic field was more than the decrease in free energy of the system, extra energy turns the calcite CaCO₃ into other forms of metastable crystalline phases, then content of different crystalline phases is changed in favor of scale inhibition.

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Mechatronics and Mechanical Engineering I

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Periodical:

Applied Mechanics and Materials (Volume 664)

Pages:

62-69

DOI:

https://doi.org/10.4028/www.scientific.net/AMM.664.62

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Online since:

October 2014

Authors:

Zhi An Liu*, Shan Long, Ju Dong Zhao, Tian Xia, Hui Feng An, Xin Zhang, Wen Bo Ma, Hui Jie Nu, De Hao Kong

Keywords:

Aragonite, Calcite, Electromagnetic Field, Scale-Inhibition, SEM, XRD

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© 2014 Trans Tech Publications Ltd. All Rights Reserved

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