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Gong H.,Chongqing University of Technology | Peng Y.,Chongqing Steel and Iron Group. Co.
Advanced Materials Research | Year: 2012

In course of oil's demulsification by pulse electric field, flexing deformation and vibration of latex particle would be happened in emulsion oil. By establishing vibration dynamics model of particle, it was obtained that equation of its parametrically excited nonlinear vibration. Vibration equation was calculated by harmonious wave balance solution, obtaining swing-frequency characteristic expression. Results of experiment showed that particle vibration model could forecast and calculate nonlinear parametrically excited resonance's frequency and maximum swing of latex particle. © (2012) Trans Tech Publications. Source


Gong H.-F.,Engineering Research Center for Waster Oil Recovery Technology and Equipment | Gong H.-F.,Chongqing University of Technology | Yang Z.-J.,Chongqing University of Technology | Peng Y.,Chongqing Steel and Iron Group. Co.
Zhendong yu Chongji/Journal of Vibration and Shock | Year: 2014

Under excitation of high pulse electric field, a drophappens to be in vibration during electro-dehydration of emulsified oil. So far, there are few references about theoretical calculation of drop vibration. A single vibrating drop in oil was regarded as a study object under high pulse electric field, and its dynamic model was built. By solving the model, drop vibration amplitude first approximate solution and its amplitude-frequency characteristic relation were obtained. Results of example calc and tests showed that the non-linear method of vibration calculation is reasonable and it can be used to predict drop's resonance frequency and amplitude. The study results were helpful to making highly efficient electro- dehydration machines. Source


Gong H.,PLA Logistical Engineering University | Tu Y.,PLA Logistical Engineering University | Song S.,PLA Logistical Engineering University | Peng Y.,Chongqing Steel and Iron Group. Co.
Shiyou Xuebao, Shiyou Jiagong/Acta Petrolei Sinica (Petroleum Processing Section) | Year: 2010

In order to explore electro-demulsification electrodynamics deeply, based on the latex particle's steady deformation dynamics generic model and the force balance upon the polarized latex particle educed by uniform electric field, an analytical expression of the model was established and used to calculate the deformation drawing-extending rate of latex particle in the emulsions of four oils. Numerical results showed that the calculated deformation drawing-extending rate of stabile latex particle was inosculated with experimental data of Eow, which meant that the model expression could well and truly predict the deformation quantum of latex particle in the electro-demulsification with uniform electric field. Source


Gong H.-F.,Engineering Research Center for Waste Oil Recovery Technology and Equipment | Gong H.-F.,Chongqing University of Technology | Yang Z.-J.,Chongqing University of Technology | Peng Y.,Chongqing Steel and Iron Group. Co. | Zhang X.-M.,Engineering Research Center for Waste Oil Recovery Technology and Equipment
Gao Xiao Hua Xue Gong Cheng Xue Bao/Journal of Chemical Engineering of Chinese Universities | Year: 2015

Reasonable electric field parameters were the key premise to ensure the emulsion oil's efficient demulsification and dewatering under the high voltage pulse electric field, however the study of the theory about the electric field parameters was rarely reported. By establishing the vibration kinetics model of emulsion oil droplet under the high voltage pulse electric field, the swing-frequency characteristics of droplet vibration were studied, and then the resonance frequency and resonance amplitude of droplet were obtained. On the basis of study above, by combining with the condition of droplet's maximum stable tensile deformation and using the method of drawing, the electric field frequency and strength values of emulsion oil's optimal demulsification were then calculated with physical parameters of the system. The experimental results show that, emulsion oil system's optimal demulsification electric field parameters obtained from calculation can enhance the efficient coalescence of the droplets in emulsion. Therefore, the high voltage pulse electric field parameters of emulsion oil's optimal demulsification, determined by nonlinear vibration kinetics, are reasonable and reliable. ©, 2015, Zhejiang University. All right reserved. Source

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