High temperature solid oxide fuel cell integrated with novel allothermal biomass gasification. Part I: Modelling and feasibility study

Panopoulos, KD; Fryda, LE; Karl, J; Poulou, S; Kakaras, E

dc.contributor.author	Panopoulos, KD	en
dc.contributor.author	Fryda, LE	en
dc.contributor.author	Karl, J	en
dc.contributor.author	Poulou, S	en
dc.contributor.author	Kakaras, E	en
dc.date.accessioned	2014-03-01T01:55:34Z
dc.date.available	2014-03-01T01:55:34Z
dc.date.issued	2006	en
dc.identifier.issn	0378-7753	en
dc.identifier.uri	https://dspace.lib.ntua.gr/xmlui/handle/123456789/27790
dc.subject	modelling	en
dc.subject	SOFC	en
dc.subject	biomass	en
dc.subject	gasification	en
dc.subject	Aspen Plus (TM)	en
dc.subject.classification	Electrochemistry	en
dc.subject.classification	Energy & Fuels	en
dc.subject.other	GAS	en
dc.subject.other	SYSTEMS	en
dc.subject.other	SENSITIVITY	en
dc.subject.other	CATALYSTS	en
dc.subject.other	ENERGY	en
dc.subject.other	H2S	en
dc.title	High temperature solid oxide fuel cell integrated with novel allothermal biomass gasification. Part I: Modelling and feasibility study	en
heal.type	journalArticle	en
heal.language	English	en
heal.publicationDate	2006	en
heal.abstract	Biomass gasification derived fuel gas is a renewable fuel that can be used by high temperature fuel cells. In this two-part work an attempt is made to investigate the integration of a near atmospheric pressure solid oxide fuel cell (SOFC) with a novel allothermal biomass steam gasification process into a combined heat and power (CHP) system of less than MWe nominal output range. Heat for steam gasification is supplied from SOFC depleted fuel into a fluidised bed combustor via high temperature sodium heat pipes. The integrated system model was built in Aspen Plus (TM) simulation software and is described in detail. Part I investigates the feasibility and critical aspects of the system based on modelling results. A low gasification steam to biomass ratio (STBR=0.6) is used to avoid excess heat demands and to allow effective H2S high temperature removal. Water vapour is added prior to the anode to avoid carbon deposition. The SOFC off gases adequately provide gasification heat when fuel utilisation factors are < 0.75; otherwise extra biomass must be combusted with overall efficiency penalty. For SOFC operation with U-f = 0.7 and current density 2500 A m(-2) the electrical efficiency is estimated at 36% while thermal efficiency at 14%. An exergy analysis is presented in Part II. (c) 2006 Elsevier B.V. All rights reserved.	en
heal.publisher	ELSEVIER SCIENCE BV	en
heal.journalName	JOURNAL OF POWER SOURCES	en
dc.identifier.isi	ISI:000241012000101	en
dc.identifier.volume	159	en
dc.identifier.issue	1	en
dc.identifier.spage	570	en
dc.identifier.epage	585	en