Investigation of technical and economic aspects of pre-dried lignite utilisation in a modern lignite power plant towards zero CO2 emissions

Agraniotis, M; Koumanakos, A; Doukelis, A; Karellas, S; Kakaras, E

dc.contributor.author	Agraniotis, M	en
dc.contributor.author	Koumanakos, A	en
dc.contributor.author	Doukelis, A	en
dc.contributor.author	Karellas, S	en
dc.contributor.author	Kakaras, E	en
dc.date.accessioned	2014-03-01T02:09:23Z
dc.date.available	2014-03-01T02:09:23Z
dc.date.issued	2012	en
dc.identifier.issn	03605442	en
dc.identifier.uri	https://dspace.lib.ntua.gr/xmlui/handle/123456789/29837
dc.subject	CCS	en
dc.subject	Economic analysis	en
dc.subject	Fluidised bed drying	en
dc.subject	Lignite pre-drying	en
dc.subject	Thermodynamic calculations	en
dc.subject	WTA dryer	en
dc.subject.other	CCS	en
dc.subject.other	Co-firing	en
dc.subject.other	Coal power plants	en
dc.subject.other	Cost of electricity	en
dc.subject.other	Economic aspects	en
dc.subject.other	Economic feasibilities	en
dc.subject.other	Economic parameters	en
dc.subject.other	Efficiency increase	en
dc.subject.other	Fluidised bed drying	en
dc.subject.other	Internal heat	en
dc.subject.other	Investment costs	en
dc.subject.other	Oxy-fuels	en
dc.subject.other	Payback periods	en
dc.subject.other	Percentage points	en
dc.subject.other	Pre-drying	en
dc.subject.other	Return on investments	en
dc.subject.other	State of the art	en
dc.subject.other	Thermal cycle	en
dc.subject.other	Thermodynamic calculations	en
dc.subject.other	Carbon dioxide	en
dc.subject.other	Costs	en
dc.subject.other	Drying	en
dc.subject.other	Economic analysis	en
dc.subject.other	Fluidized beds	en
dc.subject.other	Investments	en
dc.subject.other	Power plants	en
dc.subject.other	Profitability	en
dc.subject.other	Lignite	en
dc.subject.other	carbon dioxide	en
dc.subject.other	carbon emission	en
dc.subject.other	coal-fired power plant	en
dc.subject.other	economic analysis	en
dc.subject.other	energy use	en
dc.subject.other	feasibility study	en
dc.subject.other	investment	en
dc.subject.other	lignite	en
dc.subject.other	technological development	en
dc.subject.other	thermodynamics	en
dc.subject.other	Greece	en
dc.title	Investigation of technical and economic aspects of pre-dried lignite utilisation in a modern lignite power plant towards zero CO2 emissions	en
heal.type	journalArticle	en
heal.identifier.primary	10.1016/j.energy.2012.01.063	en
heal.identifier.secondary	http://dx.doi.org/10.1016/j.energy.2012.01.063	en
heal.publicationDate	2012	en
heal.abstract	The pre-drying technology is expected to play an important role in the next generation of brown coal power plants. The integration of the fluidised bed drying system with internal heat utilization (WTA technology) is estimated to bring an efficiency increase of up to 6 percentage points in future brown coal power plants compared to the current state of the art. Furthermore, brown coal pre-drying is considered as an indispensable part in future oxy-fuel brown coal fired boilers. In the present work the potential utilisation of brown coal pre-drying is evaluated based on a realistic reference case scenario. Thermal cycle calculations and economic feasibility studies are carried out for a modern Greek power plant, taken as reference case and for two dry lignite firing cases. In the first co-firing scenario investigated a co-firing share of dry lignite to a thermal share of 25% is regarded. Furthermore, the configuration of a brown coal boiler fired 100% with pre-dried lignite is examined. For all cases, the main economic parameters are calculated including investment costs, cost of electricity, payback period, return on investment. The effect of the CO2 allowances price on the economic feasibility of the considered scenarios is also evaluated. © 2012 Elsevier Ltd.	en
heal.journalName	Energy	en
dc.identifier.doi	10.1016/j.energy.2012.01.063	en
dc.identifier.volume	45	en
dc.identifier.issue	1	en
dc.identifier.spage	134	en
dc.identifier.epage	141	en