Fuel cells fed directly by liquid methanol represent a class of suitable devices for supply portable small power applications. To become a market attractive technology some issues must be properly addressed and resolved. The presence of gaseous CO2 generated in the anode channels is the main issue as it can hinder the free surface of the Gas Diffusion Layer reducing the active area and the methanol flux through the porous media towards the catalyst layer. In this work the influence of gas phase fraction on the cell performance and the relationship with the operating parameters such as air flow rate, methanol-water solution flow rate and current density is investigated. The characterization of CO2 bubbles flow in the anode channel is carried out.

Assessment of CO2 bubble generation influence on direct methanol fuel cell performance / Calabriso, Andrea; Borello, Domenico; Cedola, Luca; DEL ZOTTO, Luca; Santori, SIMONE GIOVANNI. - In: ENERGY PROCEDIA. - ISSN 1876-6102. - ELETTRONICO. - 75:(2015), pp. 1996-2002. [10.1016/j.egypro.2015.07.254]

Assessment of CO2 bubble generation influence on direct methanol fuel cell performance

CALABRISO, ANDREA;BORELLO, Domenico;CEDOLA, Luca;DEL ZOTTO, LUCA;SANTORI, SIMONE GIOVANNI
2015

Abstract

Fuel cells fed directly by liquid methanol represent a class of suitable devices for supply portable small power applications. To become a market attractive technology some issues must be properly addressed and resolved. The presence of gaseous CO2 generated in the anode channels is the main issue as it can hinder the free surface of the Gas Diffusion Layer reducing the active area and the methanol flux through the porous media towards the catalyst layer. In this work the influence of gas phase fraction on the cell performance and the relationship with the operating parameters such as air flow rate, methanol-water solution flow rate and current density is investigated. The characterization of CO2 bubbles flow in the anode channel is carried out.
2015
DMFC; methanol; CO2 bubbles; fuel cell
01 Pubblicazione su rivista::01a Articolo in rivista
Assessment of CO2 bubble generation influence on direct methanol fuel cell performance / Calabriso, Andrea; Borello, Domenico; Cedola, Luca; DEL ZOTTO, Luca; Santori, SIMONE GIOVANNI. - In: ENERGY PROCEDIA. - ISSN 1876-6102. - ELETTRONICO. - 75:(2015), pp. 1996-2002. [10.1016/j.egypro.2015.07.254]
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11573/815652
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