Fuzzy-Decision-Making Problems of Fuel Ethanol Production Using a Genetically Engineered Yeast
| Autor: | George T. Tsao, Chang-Huei Jing, Feng-Sheng Wang |
|---|---|
| Rok vydání: | 1998 |
| Předmět: |
Ethanol
Optimization problem biology Computer science General Chemical Engineering General Chemistry Xylose biology.organism_classification Optimal control Saccharomyces Fuzzy logic Industrial and Manufacturing Engineering Yeast Volumetric flow rate chemistry.chemical_compound Biosynthesis chemistry Differential evolution Bioreactor Process control Fermentation Ethanol fuel Biomass fuels Biochemical engineering Membership function |
| Zdroj: | Industrial & Engineering Chemistry Research. 37:3434-3443 |
| ISSN: | 1520-5045 0888-5885 |
| Popis: | A fuzzy-decision-making procedure is applied to find the optimal feed policy of a fed-batch fermentation process for fuel ethanol production using a genetically engineered Saccharomyces yeast 1400 (pLNH33). The policy consisted of feed flow rate, feed concentration, and fermentation time. The recombinant yeast 1400 (pLNH33) can utilize glucose and xylose simultaneously to produce ethanol. However, the parent yeast utilizes glucose only. A partially selective model is used to describe the kinetic behavior of the process. In this study, this partially selective fermentation process is formulated as a general multiple-objective optimal control problem. By using an assigned membership function for each of the objectives, the general multiple-objective optimization problem can be converted into a maximizing decision problem. In order to obtain a global solution, a hybrid method of differential evolution is introduced to solve the maximizing decision problem. A simple guideline is introduced in the interactive programming procedures to find a satisfactory solution to the general multiple-objective optimization problem. |
| Databáze: | OpenAIRE |
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