Journal of the Korea Academia-Industrial cooperation Society (한국산학기술학회논문지)

The Korea Academia-Industrial cooperation Society (한국산학기술학회)
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Test Study about Electro magnetic force effect to apply dredging soil transport

준설토 이송시 유동효율에 미치는 전자기장 인가 영향에 대한 실험적 고찰

  • Received : 2015.03.05
  • Accepted : 2015.04.09
  • Published : 2015.04.30
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Abstract

As the research about increasing the efficiency of dredging soil transport, the technology, which reduce the friction between pipe wall and fluid in the pipe and disturbed generating pipe blockage, has been developed. So for the purpose of applying this technology to real construction site, main test has been tried at the real scale test in field(500m dredging soil transport length). As a test result, this paper will show 30% flow efficiency increasing by permitted electro magnetic force to the pipe. And test result was evaluated as a ultra sonic velocity profiler.

준설토 이송의 효율을 증가시키기 위한 연구로써 전자기력을 배관에 인가하여 유동저항을 줄이고, 윤활 층에서의 유속을 침강 임계속도이상으로 증가시키어 침강으로 인한 폐색을 방지하는 기술을 개발하였으며, 이를 대규모 장거리 송토현장에 적용하기 위하여 송토 거리 500m 규모의 현장에서 그 영향을 검토하는 실험을 진행하였으며, 실험결과 유동효율 증대로 인한 송토 유량이 30% 이상 증가함을 실험을 통해 보였다. 이를 검증하기 위하여 전자기장 인가장치와 계측장비로 초음파 유속 프로파일러를 사용하여 배관 내 유속프로파일을 모니터링 하여 그 데이터를 비교분석하여 효과를 검증하였다.

Keywords

References

  1. Myoung Sung Choi, Yu Seung Kim, Jae Hong Kim, Jeong-Su Kim, Seung Hee Kwon, "Effects of an externally imposed electromagnetic field on the formation of a lubrication layer in concrete pumping", Construction and Building Materials 61, 2014. DOI: http://dx.doi.org/10.1016/j.conbuildmat.2014.02.071
  2. Q. Yu,1,2 S. Sugita, K. Sawayama, and Y. Isojima, " EFFECT OF ELECTRON WATER CURING AND ELECTRON CHARGING CURING ON CONCRETE STRENGTH ", Cement and Concrete Research, Vol. 28, No. 9, pp. 1201-1208, 1998 DOI: http://dx.doi.org/10.1016/S0008-8846(98)00118-5
  3. Nan Su*, Chea-Fang Wu, "Effect of magnetic field treated water on mortar and concrete containing fly ash.", Cement & Concrete Composites 25 pp.681-688, 2003. DOI: http://dx.doi.org/10.1016/S0958-9465(02)00098-7
  4. H. Afshin, M. Gholizadeh and N. Khorshidi, "Improving Mechanical Properties of High Strength Concrete by Magnetic Water Technology", Transaction A: Civil Engineering Vol. 17, No. 1, pp. 74 79c Sharif University of Technology, February 2010
  5. Durand, R., 1953 Basic Relationships Of The Transportation Of Solids In Pipes - Experimental Research. Proceedings: 5th Minnesota International Hydraulic Convention pp. 15.
  6. Wasp, E.J., J.P. Kenny, and R.L. Gandhi, 979Solid-liquid Flow Slurry Pipeline. Gulf publishing Company Huston, pp. 9-16.
  7. Roco, M.C. and C.A. Shook, 1985 Turbulent Flow of Incompressible Mixtures. Journal of Fluids Engineering. Vol.107(2), pp. 224-231. DOI: http://dx.doi.org/10.1115/1.3242466
  8. Newitt, D.M., et al., 1955hydaulic con,veying of solid in horizontal pipes. Trans,Inst,Chem,Engin. Vol.33(4).
  9. Lahiri, S.K. and K.C. Ghanta, 2008Prediction of Pressure Drop of Slurry Flow in Pipeline by Hybrid Support Vector Regression and Genetic Algorithm Model. Chinese Journal of Chemical Engineering. Vol.16(6), pp. 841-848. DOI: http://dx.doi.org/10.1016/S1004-9541(09)60003-3