Cold Start Analysis of a Polymer Electrolyte Fuel Cell

Autor:	Matthew M. Mench, JaeJun Ko, Manish Khandelwal
Rok vydání:	2007
Předmět:	chemistry.chemical_classification Cold start (automotive) Materials science chemistry Chemical engineering Fuel cells Proton exchange membrane fuel cell Polymer Electrolyte
Zdroj:	ECS Transactions. 11:553-563
ISSN:	1938-6737 1938-5862
Popis:	Study of cold start focusing on the stack as well as single cell is being performed at FCDDL to predict the cell/stack freeze-out, performance limitations and to reduce the start-up time. In the present work, a transient one-dimensional thermal model for a generic PEFC stack was developed to predict the temperature distribution and the start-up time. For a 20 cell size generic stack, the model predicted almost 12-15 ºC temperature difference between the end cell and center cell. A fundamental thermodynamic analysis was also performed to estimate the supersaturation required for the ice formation in the fuel cell components. The development of a coupled thermal and water transport model for the cold start of a single fuel cell is ongoing at the FCDDL. The developed single cell model will help to investigate the individual cell characteristic in the PEFC stack.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::c94aed6b33b937bcff0cdf8ec49b61fc https://doi.org/10.1149/1.2780968 Zobrazit plný text záznamu