Geometry optimization for proton-exchange membrane fuel cells with sequential quadratic programming method

Integration between COMSOL Multiphysics™ and MATLAB™ offers a useful option for the self-automated geometry optimization in proton-exchange membrane fuel cells (PEMFCS). It overcomes the difficulties of automatically re-generating high-quality computational meshes and subsequently running the simula...

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Published in:	Journal of power sources Vol. 186; no. 1; pp. 10 - 21
Main Authors:	Xing, Xiu Qing, Lum, Kah Wai, Poh, Hee Joo, Wu, Yan Ling
Format:	Journal Article
Language:	English
Published:	Amsterdam Elsevier B.V 2009 Elsevier
Subjects:	Anodes Applied sciences Cathodes Channels Computer simulation Electric potential Energy Energy. Thermal use of fuels Equipments for energy generation and conversion: thermal, electrical, mechanical energy, etc Exact sciences and technology Fuel cells Geometry optimization Optimization Proton exchange membrane fuel cell Quadratic programming Sequential quadratic programming method Geometry optimization Sequential quadratic programming method Proton exchange membrane fuel cell Geometry Air breathing Polymer electrolytes Numerical simulation Performance Proton exchange membrane fuel cells Optimization
ISSN:	0378-7753, 1873-2755
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Abstract	Integration between COMSOL Multiphysics™ and MATLAB™ offers a useful option for the self-automated geometry optimization in proton-exchange membrane fuel cells (PEMFCS). It overcomes the difficulties of automatically re-generating high-quality computational meshes and subsequently running the simulations to evaluate the objective function values using commercial software in computational fuel cell dynamics-based designs. Geometry optimization studies of an air-breathing PEMFC searching for the optimum channel ratio at the anode and the optimum open ratio at the cathode, are undertaken. A sequential quadratic programming method is selected to deal with the constrained design problems, while the objective functions are evaluated by running the three-dimensional simulation script of COMSOL™ under the MATLAB™ environment. Simulation results show that for the air-breathing PEM fuel cell operated at 353 K and one standard atmosphere pressure, when the anode channel ratio is fixed at 10%, the optimum cathode open ratios are very similar for the cell operated at voltages of 0.7 and 0.4 V, namely, 49.8% for 0.7 V and 49.5% for 0.4 V. When the cathode open ratio is set at 80% with a cell voltage of 0.7 V, the optimum anode channel ratio is found to be 34.7%.
AbstractList	Integration between COMSOL Multiphysics[TM] and MATLAB[TM] offers a useful option for the self-automated geometry optimization in proton-exchange membrane fuel cells (PEMFCS). It overcomes the difficulties of automatically re-generating high-quality computational meshes and subsequently running the simulations to evaluate the objective function values using commercial software in computational fuel cell dynamics-based designs. Geometry optimization studies of an air-breathing PEMFC searching for the optimum channel ratio at the anode and the optimum open ratio at the cathode, are undertaken. A sequential quadratic programming method is selected to deal with the constrained design problems, while the objective functions are evaluated by running the three-dimensional simulation script of COMSOL[TM] under the MATLAB[TM] environment. Simulation results show that for the air-breathing PEM fuel cell operated at 353 K and one standard atmosphere pressure, when the anode channel ratio is fixed at 10%, the optimum cathode open ratios are very similar for the cell operated at voltages of 0.7 and 0.4 V, namely, 49.8% for 0.7 V and 49.5% for 0.4 V. When the cathode open ratio is set at 80% with a cell voltage of 0.7 V, the optimum anode channel ratio is found to be 34.7%. Integration between COMSOL Multiphysics™ and MATLAB™ offers a useful option for the self-automated geometry optimization in proton-exchange membrane fuel cells (PEMFCS). It overcomes the difficulties of automatically re-generating high-quality computational meshes and subsequently running the simulations to evaluate the objective function values using commercial software in computational fuel cell dynamics-based designs. Geometry optimization studies of an air-breathing PEMFC searching for the optimum channel ratio at the anode and the optimum open ratio at the cathode, are undertaken. A sequential quadratic programming method is selected to deal with the constrained design problems, while the objective functions are evaluated by running the three-dimensional simulation script of COMSOL™ under the MATLAB™ environment. Simulation results show that for the air-breathing PEM fuel cell operated at 353 K and one standard atmosphere pressure, when the anode channel ratio is fixed at 10%, the optimum cathode open ratios are very similar for the cell operated at voltages of 0.7 and 0.4 V, namely, 49.8% for 0.7 V and 49.5% for 0.4 V. When the cathode open ratio is set at 80% with a cell voltage of 0.7 V, the optimum anode channel ratio is found to be 34.7%.
Author	Poh, Hee Joo Wu, Yan Ling Lum, Kah Wai Xing, Xiu Qing
Author_xml	– sequence: 1 givenname: Xiu Qing surname: Xing fullname: Xing, Xiu Qing email: xingxq@ihpc.a-star.edu.sg – sequence: 2 givenname: Kah Wai surname: Lum fullname: Lum, Kah Wai – sequence: 3 givenname: Hee Joo surname: Poh fullname: Poh, Hee Joo – sequence: 4 givenname: Yan Ling surname: Wu fullname: Wu, Yan Ling
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Snippet	Integration between COMSOL Multiphysics™ and MATLAB™ offers a useful option for the self-automated geometry optimization in proton-exchange membrane fuel cells... Integration between COMSOL Multiphysics[TM] and MATLAB[TM] offers a useful option for the self-automated geometry optimization in proton-exchange membrane fuel...
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SubjectTerms	Anodes Applied sciences Cathodes Channels Computer simulation Electric potential Energy Energy. Thermal use of fuels Equipments for energy generation and conversion: thermal, electrical, mechanical energy, etc Exact sciences and technology Fuel cells Geometry optimization Optimization Proton exchange membrane fuel cell Quadratic programming Sequential quadratic programming method
Title	Geometry optimization for proton-exchange membrane fuel cells with sequential quadratic programming method
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