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Mass transfer coefficients to a rotating and to a vibrating sphere

✍ Scribed by P. Noordsij; J.W. Rotte

Publisher: Elsevier Science
Year: 1967
Tongue: English
Weight: 255 KB
Volume: 22
Category: Article
ISSN: 0009-2509
DOI: 10.1016/0009-2509(67)80073-3

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✦ Synopsis

Average mass transfer coefficients to a rotating and to a vibrating sphere were measured with an electrochemical method.

The rotational velocity of the sphere was varied, as were the frequency and the amplitude of the vibrating sphere. Different Schmidt-numbers were obtained by altering the temperature of the liquid in which the sphere was immersed.

The results can be summarized as follows:

Rotating sphere the observations were made at and at Vibrating sphere the observations being made at at and at kdm D 10 "~ 0" 43 (-~-2)~I'(D)~; 0.8 x 10a <~d2 <27 x 10 a v 0-5 x 103<---v <2 x 103 . D ~ --= 2 + 0-24(f~--~a) ~ , 102<fda<16x 102 ; v 0"5 x 10a<v<2 x 103 D 0-03 < a < 0"063. d

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