Design and operability analysis of adiabatic water gas shift reactor systems for proton exchange membrane fuel cells
碩士 === 淡江大學 === 化學工程與材料工程學系碩士班 === 102 === In this work, Aspen plus simulation software were used to develop a model to describe water gas shift (WGS) reactor systems which validated with experimental data. The WGS reactor structures, single and two, were investigated. Based on the WGS reactor syst...
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| Format: | Others |
| Language: | zh-TW |
| Published: |
2014
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| Online Access: | http://ndltd.ncl.edu.tw/handle/81889185754608753553 |
| Summary: | 碩士 === 淡江大學 === 化學工程與材料工程學系碩士班 === 102 === In this work, Aspen plus simulation software were used to develop a model to describe water gas shift (WGS) reactor systems which validated with experimental data. The WGS reactor structures, single and two, were investigated. Based on the WGS reactor systems model, optimization problem was formulated and performed to minimize the reactor volume by varying reactor inlet temperatures and feed compositions and CO conversion while maintaining the hydrogen flow rate (2.2 kW PEMFC used) and CO concentration constraint 20 ppm. The results show that two WGS reactors in series systems with intercoolers can largely reduce the reaction volume when CO conversion exceeded equilibrium conversion.Then, design heuristic was built to provide a quick determination of WGS reactor system flowsheet. After sensitivity analysis was made, control structures are explored here.The result shows single WGS reactor system has larger operability range than two WGS reactors in series during hydrogen throughput change. Operability range of two WGS reactors in series systems was reduced by an increasing inlet CO composition.
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