Local heat transfer coefficient between the agitated liquid contained in a tank and the wall of the tank has been determined for baffled and unbaffled tanks. The diameter of the six blade-turbine used was one third of the tank diameter. The overall coefficient has been calculated by integration of t
Transferts de matiere a la paroi d'une cuve mecaniquement agitee
โ Scribed by A. Le Lan; H. Angelino
- Publisher
- Elsevier Science
- Year
- 1974
- Tongue
- English
- Weight
- 720 KB
- Volume
- 29
- Category
- Article
- ISSN
- 0009-2509
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โฆ Synopsis
Mass transfer of the wall of a stirred tank was studied using the electrochemical method. As local values were first investigated the influence on the mass transfer coefficient of the 'entrance effect' was pointed out. Overall coefficient was then obtained by integration of the modified local values. The influence of the dimension and of the position of the agitator was deduced and also the importance of the presence of baffles.
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R~sumE----Les auteurs proposent d'utiliser le transfert de masse instationnaire pour mesurer les coefficients de diffusion d'une esphce chimique en solution dans un fluide visco~lastique. Une analyse thEorique du transfert de masse instationnaire est prEsentEe. Les rEsultats expErimentaux montrent c