Dynamic Optimization of Binder Burnout Process for Tubular Electrolytes of Solid Oxide Fuel Cells
碩士 === 元智大學 === 化學工程與材料科學學系 === 94 === The dynamic optimization of polymer binder burnout processes was evaluated for a tubular electrolyte of solid oxide fuel cell in different sample porosities and sizes. Optimal heating trajectories of the binder removal processes to minimize the burnout time wer...
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| Format: | Others |
| Language: | zh-TW |
| Published: |
2006
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| Online Access: | http://ndltd.ncl.edu.tw/handle/89950914458994773812 |
| Summary: | 碩士 === 元智大學 === 化學工程與材料科學學系 === 94 === The dynamic optimization of polymer binder burnout processes was evaluated for a tubular electrolyte of solid oxide fuel cell in different sample porosities and sizes. Optimal heating trajectories of the binder removal processes to minimize the burnout time were estimated by the proposed algorithm. The burnout process model was described by the mass transport phenonemum and the kinetics of polymer binder thermal degration. The computational results show that higher heating rates can generate larger maximum buildup pressure at the center of the ceramic body. The maximum buildup pressure was affected by the sample properties, such as porosity and size. The burnout period of time appeared longer for the sample prepared with smaller porosity and burnout under lower constrained buildup pressure. The approach was applied on the PVB/YSZ(inside layer)/PVB/Ni(outside layer) sample. It is found that the PVB/Ni layer can greatly influence the conditions of the burned sample in the process. The minimum time required to remove the binder of the sample can be estimated by the the dynamic optimization approach under the constrain of a critical buildup pressure.
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