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Title
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Temperature control of a hydrogen fuel cell stack.
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Creator
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O'Keefe, Daniel Brian., FAMU-FSU College of Engineering (Tallahassee, Fla.)
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Abstract/Description
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Theoretical models continue to be developed to gain a better understanding of the inner workings and interactions involved in the operation of fuel cell stacks. Very little, however, has been done to investigate how to maintain a fuel cell stack at an optimum temperature with a water cooling system even though such an optimum has been established. This optimum has a major effect on how efficiently the stack can produce power. In this research, a thermal model is designed in which the flow...
Show moreTheoretical models continue to be developed to gain a better understanding of the inner workings and interactions involved in the operation of fuel cell stacks. Very little, however, has been done to investigate how to maintain a fuel cell stack at an optimum temperature with a water cooling system even though such an optimum has been established. This optimum has a major effect on how efficiently the stack can produce power. In this research, a thermal model is designed in which the flow rate of cooling water determines the temperature at which the fuel cell stack operates. This model is then analyzed from both a steady-state and a dynamic standpoint. These analyses are used to determine the thermal characteristics and responses of the stack as a whole. The "watercooled" model is also compared to other thermal models to ensure the accuracy of the simulations. Finally, foundations are laid for the development of a controller that uses the cooling water flow rate to affect the stack temperature.
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Date Issued
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2010
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Identifier
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646189759, 2181959, FSDT2181959, fsu:19247
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Format
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Document (PDF)
