Small Bubble Formation by Using Strong Nonuniform Electric Field

Ogata, Sumitoshi; Shigehara, Koji; Yoshida, Tsukihisa; Shinohara, Hisashi

doi:10.1109/tia.1980.4503869

Cited by 16 publications

(10 citation statements)

References 4 publications

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“…2 shows that the order of easier bubble disrupted fluids is aniline, chlorobenzene, cyclohexane, kerosine and ethanol when the electric field is relatively larger. This conclusion also agrees with the experiment (Ogata et al, 1980, Figure 7), except for smaller electric field, since Eq. 2 shows that the stability of the bubble is dependent upon both surface tension and interface electric field in this condition.…”

Section: Appendix I: Elongation Of Bubble Due To the Applied Electricsupporting

confidence: 92%

“…They also observed the strong effect of spark discharge on the bubble size distribution. Nevertheless, their results confirmed the phenomena observed by Ogata et al (1979Ogata et al ( ,1980.…”

Section: Introductionsupporting

confidence: 80%

“…8 and 9, respectively, by m) = 2 Q8di-l of field in the bubbles is higher than that of outside. This strong electric field implies that the gas corona discharge can take place inside bubbles as has been experimentally observed by Ogata et al (1979Ogata et al ( , 1980 and Sato et al (1979).…”

Section: =1mentioning

confidence: 54%

“…In this case, an electric pressure was observed at the end of a hypodermic needle by a high applied dc voltage. Ogata et al (1979Ogata et al ( ,1980, using similar method and apparatus, studied the bubble size reduction under wide range of experimental conditions. They observed that:…”

Section: Introductionmentioning

confidence: 99%

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Development of improved bubble disruption and dispersion technique by an applied electric field method

et al. 1985

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With the aid of nonuniform DC electric fields, an improved bubble disruption and dispersion technique has been developed for dielectric fluid bubble column reactors. The basic mechanisms which lead to bubble disruption and dispersion in the system have been studied both experimentally and theoretically. The influence of operating variables, liquid properties and electrode geometry on the present applied electric field method has been conducted. The efficiency of power consumption by using the present technique has also been revealed. SCOPEIt is well known that bubble column reactors have a wide range of applications in many components of chemical industrial process such as absorption, catalytic slurry reactions, bioreactions, coal liquefaction, etc. These reactors are preferred because of simplicity of operation and low operating costs. Bubble column reactors have recently been reviewed by Mashelkan (1970) and Shah et al. (1982). Main objectives of designing better mass transfer bubble column reactors, other than energy efficiency, are to have better insight of the residence time, the uniformity, and the gas-liquid interfacial area.S. Ogata was a visiting r-her

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Section: Appendix I: Elongation Of Bubble Due To the Applied Electricsupporting

confidence: 92%

Section: Introductionsupporting

confidence: 80%

Section: =1mentioning

confidence: 54%

Section: Introductionmentioning

confidence: 99%

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Development of improved bubble disruption and dispersion technique by an applied electric field method

et al. 1985

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“…IES has recently been studied because of its ability to produce smaller bubbles than those from conventional methods of bubble generation (18). Sato (10) studied cloudy bubble formation in water under a strong nonuniform electric field, while Ogata et al (13) studied small bubble formation in various fluids, including ethanol, aniline, chlorobenzene, cyclohexane, and kerosene, under an electric field. For comparison of the performance in each of the fluids, they defined the efficiency of bubble generation as the ratio of the energy theoretically needed to increase the surface area to the total energy supplied to the system.…”

Section: Spraying Of Air Into Alcohols By Electric Fieldsmentioning

confidence: 99%