Waste heat recovery from a landfill gas-fired power plant

Gewald, D; Siokos, K; Karellas, S; Spliethoff, H

dc.contributor.author	Gewald, D	en
dc.contributor.author	Siokos, K	en
dc.contributor.author	Karellas, S	en
dc.contributor.author	Spliethoff, H	en
dc.date.accessioned	2014-03-01T11:47:20Z
dc.date.available	2014-03-01T11:47:20Z
dc.date.issued	2012	en
dc.identifier.issn	13640321	en
dc.identifier.uri	https://dspace.lib.ntua.gr/xmlui/handle/123456789/38133
dc.subject	Internal combustion engine (ICE)	en
dc.subject	Landfill gas	en
dc.subject	Organic-Rankine Cycle (ORC)	en
dc.subject	Waste heat recovery	en
dc.subject	Water/steam cycle	en
dc.subject.other	Combustion pro-cess	en
dc.subject.other	Electric power	en
dc.subject.other	Electrical efficiency	en
dc.subject.other	Electricity production	en
dc.subject.other	Engine cooling	en
dc.subject.other	Gas-fired power plants	en
dc.subject.other	Heating value	en
dc.subject.other	High population density	en
dc.subject.other	Installed capacity	en
dc.subject.other	Internal combustion engines (ICE)	en
dc.subject.other	Landfill gas	en
dc.subject.other	Landfilling	en
dc.subject.other	Load response	en
dc.subject.other	Minimal cost	en
dc.subject.other	Municipal waste	en
dc.subject.other	Organic Rankine cycles	en
dc.subject.other	Organic-Rankine Cycle (ORC)	en
dc.subject.other	Power station	en
dc.subject.other	Specific cost	en
dc.subject.other	Thermodynamic cycle	en
dc.subject.other	Thermodynamic efficiency	en
dc.subject.other	Waste-heat recovery	en
dc.subject.other	Anaerobic digestion	en
dc.subject.other	Biogas	en
dc.subject.other	Economic analysis	en
dc.subject.other	Ice	en
dc.subject.other	Internal combustion engines	en
dc.subject.other	Population statistics	en
dc.subject.other	Power plants	en
dc.subject.other	Rankine cycle	en
dc.subject.other	Thermodynamic properties	en
dc.subject.other	Waste heat	en
dc.subject.other	Waste incineration	en
dc.subject.other	Electric power generation	en
dc.title	Waste heat recovery from a landfill gas-fired power plant	en
heal.type	other	en
heal.identifier.primary	10.1016/j.rser.2012.01.036	en
heal.identifier.secondary	http://dx.doi.org/10.1016/j.rser.2012.01.036	en
heal.publicationDate	2012	en
heal.abstract	Waste treatment and management is a certain challenge especially in areas with high population density. One of the options for waste treatment is landfilling, where the amount of municipal waste also produces landfill gas through anaerobic digestion. The heating value of the landfill gas is high enough to use it as a fuel in combustion processes, e.g. in internal combustion engines (ICEs) to produce electric power. In Ano Liosia, Athens (Greece) up to 6000 tons of waste are landfilled every day and the landfill gas is used in an ICE power station directly at the site of the landfill. The power station consists of 15 ICEs and has an installed capacity of 23.5 MW. The major advantages of using ICE for power generation are the high electrical efficiency of ICEs and their fast load response. However, more than 50 of the landfill gas energy content is still released to the atmosphere as engine waste heat (exhaust gas and engine cooling water). The aim of this paper is to study the possibilities of using this large amount of heat in order to increase the electricity production and efficiency of the Ano Liosia power station. Therefore, a thermodynamic and economic analysis of two different waste heat recovery (WHR) systems is conducted. The water/steam cycle and the Organic Rankine Cycle (ORC) are examined and evaluated by means of thermodynamic cycle simulation and by calculating their specific costs of power generation. Their advantages and disadvantages considering their application in landfillgas-fired ICE power stations are discussed under the consideration of maximal thermodynamic efficiency and minimal costs of power generation. © 2012 Elsevier Ltd. All rights reserved.	en
heal.journalName	Renewable and Sustainable Energy Reviews	en
dc.identifier.doi	10.1016/j.rser.2012.01.036	en
dc.identifier.volume	16	en
dc.identifier.issue	4	en
dc.identifier.spage	1779	en
dc.identifier.epage	1789	en