Oxyfuel boiler design in a lignite-fired power plant

Kakaras, E; Koumanakos, A; Doukelis, A; Giannakopoulos, D; Vorrias, I

dc.contributor.author	Kakaras, E	en
dc.contributor.author	Koumanakos, A	en
dc.contributor.author	Doukelis, A	en
dc.contributor.author	Giannakopoulos, D	en
dc.contributor.author	Vorrias, I	en
dc.date.accessioned	2014-03-01T01:26:51Z
dc.date.available	2014-03-01T01:26:51Z
dc.date.issued	2007	en
dc.identifier.issn	0016-2361	en
dc.identifier.uri	https://dspace.lib.ntua.gr/xmlui/handle/123456789/18260
dc.subject	Boiler design	en
dc.subject	CO2 sequestration	en
dc.subject	Lignite-fired power plants	en
dc.subject	Oxyfuel	en
dc.subject.classification	Energy & Fuels	en
dc.subject.classification	Engineering, Chemical	en
dc.subject.other	Carbon dioxide	en
dc.subject.other	Coal combustion	en
dc.subject.other	Flue gases	en
dc.subject.other	Heat exchangers	en
dc.subject.other	Lignite	en
dc.subject.other	Oxygen	en
dc.subject.other	Thermal effects	en
dc.subject.other	Furnace temperatures	en
dc.subject.other	Gas recirculation	en
dc.subject.other	Oxyfuel boiler design	en
dc.subject.other	Oxyfuel technology	en
dc.subject.other	Power production	en
dc.subject.other	Coal fired boilers	en
dc.title	Oxyfuel boiler design in a lignite-fired power plant	en
heal.type	journalArticle	en
heal.identifier.primary	10.1016/j.fuel.2007.03.037	en
heal.identifier.secondary	http://dx.doi.org/10.1016/j.fuel.2007.03.037	en
heal.language	English	en
heal.publicationDate	2007	en
heal.abstract	In the context Of CO2 capture and storage, the oxyfuel technology provides a promising option applicable in centralised power production schemes. This technology is based on combustion with pure oxygen instead of air and the flue gas mainly consists Of CO2 and H2O. The work presented in this paper is focused in the application of the oxyfuel technology in a lignite-fired power plant. Significant design issues are the required extended flue gas recirculation in order to provide the ballasting effect of the absent N-2 and moderate the furnace temperatures. Therefore, a modified design of heat exchange surfaces of the oxyfuel steam boiler was formulated and was compared to a conventional air-fired boiler. A typical modern Greek air-fired power plant has been used as reference. The dominating factors that affect the dimensioning of the oxyfuel boiler are the higher radiative heat transfer - due to the high concentrations of CO, and H2O in the flue gas - and the different flue gas mass flow, compared to a conventional air-fired boiler. For the determination of the thermodynamic cycle characteristics, simulations were made with the use of a thermodynamic cycle calculation software [Stamatelopoulos GN. Calculation and optimisation of power plant thermodynamic cycles, VDI-Regulations, Series 6, Nr.340. Braunchweig, Mechanical Engineering Department; 1996 [in German]]. (c) 2007 Elsevier Ltd. All rights reserved.	en
heal.publisher	ELSEVIER SCI LTD	en
heal.journalName	Fuel	en
dc.identifier.doi	10.1016/j.fuel.2007.03.037	en
dc.identifier.isi	ISI:000249546600015	en
dc.identifier.volume	86	en
dc.identifier.issue	14 SPEC. ISS.	en
dc.identifier.spage	2144	en
dc.identifier.epage	2150	en