Development of a concentration measurement technique for steady state solid-liquid mixing using a neural network

Deog Hee Doh1, Joo Ho Yum2, Gyeong Rae Cho1, Myung Ho Kim3, Gyong Won Ryu3, Masahiro Takei4
1Division of Mechanical and Energy Systems Engineering, Korea Maritime University, Yeongdo-gu, Busan, Korea
2Graduate School, Korea Maritime University, Yeongdo-gu, Busan, Korea
3R&D Institute-5, Agency for Defense Development, Yuseong, Daejeon, Korea
4Graduate School of Mechanical Engineering Artificial Science Division, Chiba University, Chiba, Japan

Tóm tắt

A measurement technique that can measure the concentration of the solid particles in liquid flow was developed. The measurement system consists of a color camera and three LCD displays. The solid particles were put at the bottom of a cylindrical mixing tank in which JetA1 oil was filled. Transient mixing of the solid particles was performed by rotating a propeller type agitator with three different rotation speed (500, 600, 700 r/min). Mixing state was visualized by the LCD displays and a color camcorder. The color intensity of the glass particles changes with their concentration. The color information was decoded into three principle colors R, G, and B so that, the calibration curve of color-to-concentration was performed using these information. A neural network was used for this calibration. The transient concentration field of the solid particles was quantitatively visualized.

Từ khóa


Tài liệu tham khảo

Houcine, I., Vivier, H., Plasari, E., David, R., Villermaux, J.: Planar Laser Induced Fluorescence Technique for Measurements of Concentration Fields in Continuous Stirred Reactors, Exp. in Fluids, Vol. 22, pp.96–102, (1996).

Guillard, F., Tragardh, C., Fuchs, L.: A Study of Turbulent Mixing in a Turbine-Agitated Tank Using a Fluorescence Technique, Exp. in Fluids, Vol. 28, pp.225–235, (2000).

Jeong, E. H., Kim, K. C.: A Study on the Mixing Characteristics in a Rushton Turbine Reactor by a Laser Induced Fluorescence Method, KSME(B), Vol.26, No.8, pp. 1145–1152, (2002).

Yum, J. H., Doh, D. H., Cho, G. R., Min, S. K., Kim, M. H., Ryu, K. W.: Measurements on Transient Mixing Concentration of Two Fuel Oils using a Quantitative Flow Visualization Technique, Tran. of Korean Hydrogen and New Energy Society, vol.23, No.1, (2012).

Rumelhart, D. E., Hinton, G. E., Williams, R. J.: Learning Representations by Back-Propagating Errors, Nature, 1986, pp.323–333, (1986).