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Biomass Cogeneration in Europe: economical, technical and environmental evaluation

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Biomass Cogeneration in Europe: economical, technical and environmental evaluation ( biomass-cogeneration-europe-economical-technical-and-environ )

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THIRD EUROPEAN COMBUSTION MEETING ECM 2007 Table 3: Economical indicators of CHP biomass systems Indicator/ Technology Steam turbine Steam engine CCS ICE Micro turbine Stirling engine ORC Investment costs 3.750 €/kWe [21] (payback time 13yrs) 800-1.500($/kW) [16] 900-1.500 ($/kW) [16] 1.300-2.000 ($/kW) [16] cost effective plant (payback 4-8yrs) [21] 3,2 k€ payback time:7yrs[20] capital costs: 380 €/kWe (or ~0,08€/kWhe)[17] Taxation and consumables Maintenance costs low[22] production cost: 0,138€/kWe [21] 0.01- 0,23€/kWhe [1] electricity production cost: 10,18 - 11,00$c/kWh (depending on the fuel) [25] maintenance cost 0,75 $c/kWh 1,2-2,0 $c/kW [16] maintenance costs differ with the type, speed, size ad umber of cylinders of an engine[15] generally:0,008-0,013S/kWh[23] low [15] 0,5-1,5 $c/kW [16] 1.5-2.5 $c/kW [16] total operation cost: 381 k€/a (maint:50 k€/a). low maintenance demands and man power [20] total electricity production cost: 0,12€/kWhe[22] operation cost:0,1 €/kWhe[17] Emissions high service cost [16] decreased need for service [16] Table 4: Environmental indicators of CHP biomass systems Technology Steam turbine Steam engine CCS ICE Micro turbine Stirling engine ORC >5MWe, lower than ORC [21] good environmental. performance[13] reduction of environmental emissions [10,14] CO2 and SO2 emissions are strongly dependent on the fuel used, the amounts of NOx, CO and incombustible hydrocarbons in exhaust gases depend on other conditions of combustion, like the temperature and the amount of air. [16] low[15], esp NOx [16] low (esp NOx) [16] [17, 18, 19]: *THE CO EMISSIONS OF THE MORE RECENT R&D SHOWS LOWER DATA (comparing [18] and [19]) low, [10] very low, important contribution to environmental protection [20] 4 Proceedings of the European Combustion Meeting 2007 *Corresponding author: vamvuka@mred.tuc.gr

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