Detalhes bibliográficos
| Ano de defesa: |
2009 |
| Autor(a) principal: |
Reis, Giann Braune |
| Orientador(a): |
Cruz, Antonio José Gonçalves da
 |
| Banca de defesa: |
Não Informado pela instituição |
| Tipo de documento: |
Dissertação
|
| Tipo de acesso: |
Acesso aberto |
| Idioma: |
por |
| Instituição de defesa: |
Universidade Federal de São Carlos
|
| Programa de Pós-Graduação: |
Programa de Pós-Graduação em Engenharia Química - PPGEQ
|
| Departamento: |
Não Informado pela instituição
|
| País: |
BR
|
| Palavras-chave em Português: |
|
| Palavras-chave em Inglês: |
|
| Área do conhecimento CNPq: |
|
| Link de acesso: |
https://repositorio.ufscar.br/handle/ufscar/4016
|
Resumo: |
The yeast Saccharomyces cerevisiae can be useful in several ways in bioprocesses. It is widely used in anaerobic processes for production of bioethanol at Brazilians plants. It is also of great importance as baker s yeast, where the product is the biomass. Moved by the industrial interest this work will aggregate knowledge in the improvement of techniques of control applied to bioprocesses, taking as a case study of aerobic yeast growth (process of obtaining biomass). This study developed a supervisory platform to perform the data acquisition and process control of a laboratory scale bioreactor. As case study experiments with Saccharomyces Cerevisiae were performed under aerobic conditions (looking for biomass obtainment). A fuzzy controller was developed and evaluated to control the input flow of supplemental medium (glucose) in bioreactor. The control variable was respiratory quotient (RQ). A sensor for the estimation of cell concentration in real time was evaluated and it shown to be effective for the application. It could provide information to the control algorithm. The experimental data obtained were used in the validation of a literature model. The result of simulation showed that the model satisfactorily described the studied process. |
