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research article

Improvement of continuous calibration based on temperature oscillation and application to biochemical reaction calorimetry

Bou-Diab, L.
•
Schenker, B.
•
Marison, I.
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2001
Chemical Engineering Journal

This paper describes an improvement of a method for continuous calibration of the global heat transfer coeff., recently described in literature [A. Tietze, Moglichkeiten und Grenzen der Temperaturschwingungskalorimetrie, Doctoral Thesis, Technishe Universitat Berlin, 1998; Chem. Eng. Sci. 51 (1996) 3131; Chem. Ing. Tech. 68 (1996) 97]. The continuous calibration method is based on induced sinusoidal jacket temp. oscillations, allowing the uncoupling of the chem. heat prodn. from the heat transfer parameters during the reaction. A math. computation procedure based on two-anchors, before and after the reaction, has been developed which gives better results as compared to the one reported in literature, using one-anchor only, either before or after the reaction. The applicability of this method to biotechnol. has been explored with respect to different culture parameters, which affect the global heat transfer coeff., i.e. stirring speed, reactive vol., and medium viscosity. This oscillating reaction calorimetry method (ORC) has been successfully applied to a fed-batch culture of Saccharomyces cerevisiae with a non-linear increase of reactive vol. [on SciFinder (R)]

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Type
research article
DOI
10.1016/S1385-8947(00)00235-7
Web of Science ID

WOS:000166236600014

Author(s)
Bou-Diab, L.
Schenker, B.
Marison, I.
Ampuero, S.
von Stockar, U.  
Date Issued

2001

Published in
Chemical Engineering Journal
Volume

81

Issue

1-3

Start page

113

End page

127

Editorial or Peer reviewed

REVIEWED

Written at

EPFL

EPFL units
LGCB  
Available on Infoscience
February 27, 2006
Use this identifier to reference this record
https://infoscience.epfl.ch/handle/20.500.14299/226056
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