EXPCON. A new approach for automatic control of the substrate flow rate in chemostat and fed-batch processes

verfasst von

A. S. Afschar, K. H. Bellgardt, V. Bartzke, J. Nothnagel, K. Schaller

Abstract

In biotechnological processes requiring a continuous or repeated substrate supply, an automatic control of the feed rate is desirable. This should be able to react appropriate on varying properties of the microorganisms, changes in substrate quality or other operating parameters. With EXPCON a new approach is proposed for such an automatic control of the substrate feed rate. The approach is based on a pulsed feeding strategy in combination with an intelligent evaluation of measurements by a logical model of the process. The logical model can make exact statements about the actual substrate limitation of the microorganisms. This knowledge then can be translated into a proper control action. Within this approach no balancing is needed and there are only low requirements on the measurement accuracy. The practical application of the approach is demonstrated by some examples of different processes.

Externe Organisation(en)

Helmholtz-Zentrum für Infektionsforschung GmbH (HZI)

Typ

Konferenzaufsatz in Fachzeitschrift

Journal

Food biotechnology

Band

4

Seiten

113-122

Anzahl der Seiten

10

ISSN

0890-5436

Publikationsdatum

1990

Publikationsstatus

Veröffentlicht

Peer-reviewed

Ja

ASJC Scopus Sachgebiete

Biotechnologie, Lebensmittelwissenschaften, Angewandte Mikrobiologie und Biotechnologie