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Multiphase electromagnetic stirring of low conducting liquids (2005)

Ernst, R. ; Perrier, D. ; Brun, P. ; [et al.]

Bradford : Emerald

Compel 24 (2005), S. 334-343

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ISSN: 0332-1649

Source: Emerald Fulltext Archive Database 1994-2005

Topics: Electrical Engineering, Measurement and Control Technology , Mathematics

Notes: Purpose - To produce a controlled stirring in a low conducting liquid thanks to a new kind of multiphase inductor. Design/methodology/approach - An experimental pilot consisting of a cylindrical salt water pool surrounded by an innovative multiphase inductor configuration, based on the single phase asynchronous motor principle, is setup. The maximum bulk stirring velocities are measured and compared with the estimate by numerical modelling. Findings - Shows the possibility of controlling the stirring of a low conducting liquid thanks to a multiphase inductive system. The corresponding measurement results give a significant bulk velocity of a few centimetres per second. Practical implications - This new kind of multiphase inductor, working with a single phase induction generator, seems a promising way to produce a controlled stirring in low conducting media which cover a large range of induction applications. Originality/value - Such an innovative inductor configuration has already been tested successfully for metal alloys stirring in the middle frequency area. In this paper, an extension of this kind of multiphase inductive system for electromagnetic stirring of low conducting liquids like electrolytes in the high frequency area is presented.

Type of Medium: Electronic Resource

URL: http://dx.doi.org/10.1108/03321640510571534

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Sodium cellulosates-preparation from various alkoxides and reactivity toward 2-chloroethyldiethylaminePresented in part at the 160th National Meeting of the American Chemical Society, Chicago, Illinois, September 1970. (1972)

Soignet, D. M. ; Berni, R. J. ; Perrier, D. M. ; [et al.]

New York, NY [u.a.] : Wiley-Blackwell

Journal of Applied Polymer Science 16 (1972), S. 353-360

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ISSN: 0021-8995

Keywords: Chemistry ; Polymer and Materials Science

Source: Wiley InterScience Backfile Collection 1832-2000

Topics: Chemistry and Pharmacology , Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics , Physics

Notes: Sodium cellulosates were prepared by reacting premercerized cotton fabrics with sodium salts of selected alcohols. The degree of conversion to the cellulosate was related to the Taft polar substituent constant, σ*, of the alkoxide R group. Increase in size of the R group in the alkanol series did not decrease the degree of cellulosate formation. The extent of reaction of the cellulosates with 2-chloroethylidiethylamine in tertiary butanol to form diethylaminoethyl cellulose (DEAE-cotton) did not increase with the sodium ion content of the starting cellulosate substrate.

Additional Material: 2 Ill.