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A Microjet-based Reactant Delivery Method for PEM Fuel Cells
Abstract/OtherAbstract :
A microjet-based reactant delivery method was implemented in a prototype PEM fuel cell. A commercially available fuel cell was procured that utilizes a conventional reactant delivery method. The prototype was designed with an identical active area so that number of variables leading to differences in performance between the two fuel cells would be minimal. The MEAs inside each fuel cell were identical. Both the prototype and commercially available cell were tested under a variety of operating conditions. Conditions that were tested include: low air stoichiometry flow rates, high air stoichiometry flow rates, varying relative humidity, varying hydrogen stagnation pressure, varying stack temperatures, and varying air backpressure. The performance of each fuel cell was compared for each set of test conditions. The results show that the prototype microjet fuel cell experienced lower activation losses than the commercially available fuel cell. Testing revealed several design flaws in the prototype. Also, there are indications that the microjet design allows the fuel cell to be less affected by high stack temperatures.
Authors :
DeRoche, Peter Michael
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Contributors :
Anjaneyulu Krothapalli, Brenton Graska, Juan Ordonez
Publication Detail :
Publisher :  FSU Libraries Digital Library Center     Type :  text     Format :  application/pdf    
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Subject :
Mechanical Engineering, Department of
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unrestricted, I hereby certify that, if appropriate, I have obtained and attached hereto a written permission statement from the owner(s) of each third party copyrighted matter to be included in my thesis, dissertation, or project report, allowing distribution as specified below. I certify that the version I submitted is the same as that approved by my advisory committee. I hereby grant to Florida State University or its agents the non-exclusive license to archive and make accessible, under the conditions specified below, my thesis, dissertation, or project report in whole or in part in all forms of media, now or hereafter known. I retain all other ownership rights to the copyright of the thesis, dissertation or project report. I also retain the right to use in future works (such as articles or books) all or part of this thesis, dissertation, or project report.
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Languages :  en    
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