Artículo
Product-based sliding mode observer for biomass and growth rate estimation in Luedeking-Piret like processes
Fecha de publicación:
01/2016
Editorial:
Institution of Chemical Engineers
Revista:
Chemical Engineering Research & Design
ISSN:
0263-8762
Idioma:
Inglés
Tipo de recurso:
Artículo publicado
Clasificación temática:
Resumen
The on-line estimation of non-measurable substances and key process variables is relevant for the real-time monitoring of the bioprocesses. This paper deals with the on-line estimation of microbial growth rate and biomass concentration based on measures of the product concentration. The algorithm does not require a model of the growth rate and it can be applied to batch, fed-batch and continuous processes. The proposed observer, which is based on second-order sliding mode ideas, provides smooth estimates with reduced-order error dynamics. It is also shown that in case of error in the product formation parameters, convergence to an error bound can be achieved. Numerical simulations under different operating conditions are provided and the estimates obtained for lactic acid production are contrasted with documented experimental data.
Palabras clave:
Biomass Estimation
,
Bioprocess Monitoring
,
Growth Rate Estimation
,
Observer
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Articulos(CCT - LA PLATA)
Articulos de CTRO.CIENTIFICO TECNOL.CONICET - LA PLATA
Articulos de CTRO.CIENTIFICO TECNOL.CONICET - LA PLATA
Citación
Nuñez, Sebastián; Garelli, Fabricio; de Battista, Hernán; Product-based sliding mode observer for biomass and growth rate estimation in Luedeking-Piret like processes; Institution of Chemical Engineers; Chemical Engineering Research & Design; 105; 1-2016; 24-30
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