Comparative exergy analysis of direct alcohol fuel cells using fuel mixtures

Leo Mena, Teresa de Jesus and Raso García, Miguel Ángel and Navarro Arevalo, Emilio and Sánchez de la Blanca, Emilia (2011). Comparative exergy analysis of direct alcohol fuel cells using fuel mixtures. "Journal of Power Sources", v. 196 (n. 3); pp. 1178-1183. ISSN 0378-7753. https://doi.org/10.1016/j.jpowsour.2010.08.096.

Description

Title: Comparative exergy analysis of direct alcohol fuel cells using fuel mixtures
Author/s:
  • Leo Mena, Teresa de Jesus
  • Raso García, Miguel Ángel
  • Navarro Arevalo, Emilio
  • Sánchez de la Blanca, Emilia
Item Type: Article
Título de Revista/Publicación: Journal of Power Sources
Date: February 2011
ISSN: 0378-7753
Volume: 196
Subjects:
Freetext Keywords: DAFC, Fuel alcohol mixture, Methanol, Ethanol, Exergetic efficiency, Flexible fuel cell
Faculty: E.T.S.I. Navales (UPM)
Department: Sistemas Oceánicos y Navales [hasta 2014]
Creative Commons Licenses: Recognition - No derivative works - Non commercial

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Abstract

Within the last years there has been increasing interest in direct liquid fuel cells as power sources for portable devices and, in the future, power plants for electric vehicles and other transport media as ships will join those applications. Methanol is considerably more convenient and easy to use than gaseous hydrogen and a considerable work is devoted to the development of direct methanol fuel cells. But ethanol has much lower toxicity and from an ecological viewpoint ethanol is exceptional among all other types of fuel as is the only chemical fuel in renewable supply. The aim of this study is to investigate the possibility of using direct alcohol fuel cells fed with alcohol mixtures. For this purpose, a comparative exergy analysis of a direct alcohol fuel cell fed with alcohol mixtures against the same fuel cell fed with single alcohols is performed. The exergetic efficiency and the exergy loss and destruction are calculated and compared in each case. When alcohol mixtures are fed to the fuel cell, the contribution of each fuel to the fuel cell performance is weighted attending to their relative proportion in the aqueous solution. The optimum alcohol composition for methanol/ethanol mixtures has been determined.

More information

Item ID: 15352
DC Identifier: http://oa.upm.es/15352/
OAI Identifier: oai:oa.upm.es:15352
DOI: 10.1016/j.jpowsour.2010.08.096
Official URL: http://www.sciencedirect.com/science/article/pii/S0378775310015818
Deposited by: Memoria Investigacion
Deposited on: 26 Oct 2013 07:32
Last Modified: 21 Apr 2016 15:24
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