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were done for three different plant sizes based on ORC modules from Turboden s.r.l with the sizes 600, 1100 and 1500 kWel (T600,T1100 and T1500), [16]. The fuel and heat powers for the 600 and 1500 kWel plant are calculated with efficiencies presented for the 1100 kWel plant by Obernberger [19], see Table 2.2 Table 2.2 Data for the plants P(el)] [kWel] 600 P(th) [kWth] 3041 P(fuel) [kWth] 4138 ntot 0.88 nel 0.15 ηth 0.73 nmarg 0.79 1100 1500 5575 7602 7586 10345 0,88 0,88 0.15 0.15 0.73 0.73 0.79 0.79 The additional investment (Iadd) 2974 k€ for the 1100 kWel plant was taken from Obernberger [19]. This value was then used along with scale factors of 0.46 and 0.65 (calculated from Duvia [16], (See appendix B) to calculate the additional investment for the T600 and T1500 module. The results are listed in Table 2.3. Table 2.3 Additional Investment for the considered plants Plant Additional investment (Iadd) Specific additional investment (Is,add) [k€] [€/kWel] 600 1100 1500 2249 2974 3642 3748 2704 2428 The costs were divided in to capital-, consumption- and operation cost, all values was taken directly or calculated from Obernberger [19], with the exception of the economic and technical lifetime which was assumed to 20 years. The frame conditions used are presented in Table 2.4 and the calculation can be found in Appendix B Table 2.4 Frame conditions, [19] Capital cost Interest rate 0.06 Economic lifetime [year] 20 Technical lifetime [year] 20 Consumption cost Fuel price [€/MWhfuel] 15 Own electricity consumption cost [€/kWel)] 31.2 Additional costs [€/kWhel] 0,0047 General Consumption costs % of Iadd 0.2 Operation cost Hourly rate [€/h] 30 Annual working hour [h] 800 Management (fixed for every size) [€] 5918 Maintenance cost % of Iadd 1.81 14PDF Image | Biomass Based Small Scale Combined Heat and Power Tech
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