Computational Predictions of Cell Efficiency and Fuel Utilization as a Function of Fuel Processing and Cell Voltage

Autor:	Robert J. Kee, W. Grover Coors, Roderick W. Sidwell, David G. Goodwin, Huayang Zhu
Rok vydání:	2005
Předmět:	Maximum efficiency Thermodynamic model Computational model Materials science Cell voltage business.industry Heat of combustion Function (mathematics) Physics::Chemical Physics Operating voltage Polarization (electrochemistry) Process engineering business
Zdroj:	ECS Proceedings Volumes. :649-658
ISSN:	2576-1579 0161-6374
DOI:	10.1149/200507.0649pv
Popis:	This paper presents two computational models that explore operating conditions for SOFC systems. The operating efficiency, defined as the ratio of electrical output to the potential heating value of fully oxidizing the fuel stream, depends strongly on operating voltage. A thermodynamic model predicts maximum possible efficiency and fuel utilization, which are independent of the cell architecture, but depend on fuel composition, temperature, and pressure. The model is used to map maximum efficiency for fuel mixtures of methane-steam, methane-air, and hydrogen-carbon-monoxide. A second model, which includes internal polarization losses, is used to determine cell dimensions needed to achieve certain efficiencies.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::bef94bfa0181eaf1f93ce6835d2d708d https://doi.org/10.1149/200507.0649pv Zobrazit plný text záznamu