A Study on Surface Tension Measurement for the Water through Electro-Magnetic Field

전자장을 통과한 물의 표면장력 측정에 대한 연구

  • 고영하 (조선이공대학 국방특수기술과)
  • Published : 2003.11.01

Abstract

The purpose of this study was to measure the surface tension of hard water through electro-magnetic field for investigating the effect of electro-magnetic water treatment. The maximum reduction of surface tension was 8% comparing to the no treatment case. When the flow velocity through the permanent magnetic device (PMD) was 6.3 m/s, sample of hard water had the minimum surface tension.

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References

  1. Water-formed Scale Deposits J.C.Cowan;D.J.Weintritt
  2. Chemical Engineering Progress v.68 no.2 Fouling : the major unresolved problem in heat transfer J.Taborda;T.Aoki;R.B.Ritter;J.W.Palen;J.G.Knudsen
  3. Canadian J. of Chem. Eng. v.55 The history and status of research in fouling of heat exchangers in cooling water service J.W.Suitor;W.J.Marner;R.B.Ritter
  4. 20th ASME/AICHE Heat Transfer Conference v.HTD-17 Cooling water fouling a brief review : Fouling in Heat Exchanger Equipment J.G.Knudsen
  5. Ph. D. Thesis, Drexel University A study of electronic descaling technology C.F.Fan
  6. Int. Comm. Heat Mass Transfer v.24 Theory of electronic anti-fouling tech-nology to control precipitation fouling in heat exchangers Y.I.Cho;C.F.Fan;B.G.Choi
  7. 1997 National Heat Transfer Conference v.HTD-350;12 A new electronic anti-fouling method to control fouling C.F.Fan;Y.I.Cho
  8. Int. Comm. Heat Mass Transfer v.24 Microscopic observation of calcium carbonate particles : validation of an electronic anti-fouling technology C.F.Fan;Y.I.Cho
  9. Physical Chemistry(3rd edn.) P.W.Atkins