Dynamic Model of High Temperature PEM Fuel Cell Stack Temperature

Søren Juhl Andreasen, Søren Knudsen Kær

Research output: Contribution to book/anthology/report/conference proceedingConference abstract in proceedingResearch

Abstract

The present work involves the development of a model for predicting the dynamic temperature of a high temperature PEM (HTPEM) fuel cell stack. The model is developed to test different thermal control strategies before implementing them in the actual system. The test system consists of a prototype cathode air cooled 30 cell HTPEM fuel cell stack developed at the Institute of Energy Technology at Aalborg University. This fuel cell stack uses PEMEAS Celtec P-1000 membranes, runs on pure hydrogen in a dead end anode configuration with a purge valve. The cooling of the stack is managed by running the stack at a high stoichiometric air flow. This is possible because of the PBI fuel cell membranes used, and the very low pressure drop in the stack. The model consists of a discrete thermal model dividing the stack into three parts: inlet, middle and end and predicting the temperatures in these three parts, where also the temperatures are measured. The heat balance of the system involves a fuel cell model to describe the heat added by the fuel cells when a current is drawn. Furthermore the model also predicts the temperatures, when heating the stack with external heating elements for start-up, heat conduction through stack insulation, cathode air convection and heating of the inlet gasses in manifold. Various measurements are presented to validate the model predictions of the stack temperatures.
Original languageEnglish
Title of host publicationProceedings of the 5th International Conference on Fuel Cell Science, Engineering, and Technology : Book of Abstracts
Number of pages1
Volume1
PublisherAmerican Society of Mechanical Engineers
Publication date2007
Pages149
ISBN (Print)0-7918-4796-9
Publication statusPublished - 2007
EventASME 5th International Conference on Fuel Cell Science, Engineering, and Technology - New York, New York, United States
Duration: 18 Jun 200720 Jun 2007
Conference number: 5

Conference

ConferenceASME 5th International Conference on Fuel Cell Science, Engineering, and Technology
Number5
CountryUnited States
CityNew York, New York
Period18/06/200720/06/2007

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