Comparison between two methane reforming models applied to a quasi-two-dimensional planar solid oxide fuel cell model

Hofmann, P; Panopoulos, KD; Fryda, LE; Kakaras, E

dc.contributor.author	Hofmann, P	en
dc.contributor.author	Panopoulos, KD	en
dc.contributor.author	Fryda, LE	en
dc.contributor.author	Kakaras, E	en
dc.date.accessioned	2014-03-01T01:30:00Z
dc.date.available	2014-03-01T01:30:00Z
dc.date.issued	2009	en
dc.identifier.issn	0360-5442	en
dc.identifier.uri	https://dspace.lib.ntua.gr/xmlui/handle/123456789/19446
dc.subject	Modelling	en
dc.subject	SOFC	en
dc.subject	Heterogeneous kinetics	en
dc.subject	Global kinetics	en
dc.subject.classification	Thermodynamics	en
dc.subject.classification	Energy & Fuels	en
dc.subject.other	HYBRID SYSTEMS	en
dc.subject.other	SOFC	en
dc.subject.other	PERFORMANCE	en
dc.subject.other	SIMULATION	en
dc.subject.other	GEOMETRY	en
dc.subject.other	KINETICS	en
dc.subject.other	REACTOR	en
dc.subject.other	DESIGN	en
dc.subject.other	GAS	en
dc.title	Comparison between two methane reforming models applied to a quasi-two-dimensional planar solid oxide fuel cell model	en
heal.type	journalArticle	en
heal.identifier.primary	10.1016/j.energy.2008.09.015	en
heal.identifier.secondary	http://dx.doi.org/10.1016/j.energy.2008.09.015	en
heal.language	English	en
heal.publicationDate	2009	en
heal.abstract	Up to recently 2-D solid oxide fuel cell (SOFC) modelling efforts were based on global kinetic approaches for the methane steam reforming and water gas shift reactions (WGS) or thermodynamic equilibrium. Lately detailed models for elementary heterogeneous chemical kinetics of reforming (HCR) over Ni-YSZ anode became available in literature. Both approaches were employed in a quasi 2-D model of a planar high temperature electrolyte supported (ESC) SOFC and simulations were carried out for three different fuel gas compositions: pre-reformed natural gas (high CH4 content), and two different biomass derived producer gases (low CH4 content). The results show that the HCR predicts much slower reforming rates which leads to a more evenly distributed solid temperature but smaller power output and thus electrical efficiency. The two models result into predictions that differ greatly if high methane content fuels are used and for such cases the decision upon the modelling scheme to follow should be based on experimental investigations. (C) 2008 Elsevier Ltd. All rights reserved.	en
heal.publisher	PERGAMON-ELSEVIER SCIENCE LTD	en
heal.journalName	ENERGY	en
dc.identifier.doi	10.1016/j.energy.2008.09.015	en
dc.identifier.isi	ISI:000272105600018	en
dc.identifier.volume	34	en
dc.identifier.issue	12	en
dc.identifier.spage	2151	en
dc.identifier.epage	2157	en