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Session: Parallel Session: Operational Experience I
Session starts: Thursday 22 September, 10:00
Presentation starts: 10:00
Room: Frans van Hasseltzaal

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Roberto Bini ()
Fabio Viscuso ()

Abstract:
A new development of ORC technology recently introduced to the market is presented. This class of high efficiency organic Rankine cycle has been introduced to produce electric energy from medium temperature biomass or heat recovery application in the 1 MW el power range. To obtain an electrical efficiency of about 25 % (net of ORC auxiliaries) the cooling of the condenser is kept as low as reasonably possible using air coolers to cool down water circulating in a closed loop. Hence these units have been conceived for ‘power only’ production, i.e. where cogeneration is not required. A further development of the system has been patented by Turboden to allow for a partial utilization in ‘cogeneration mode’. With this implementation it is possible to obtain a fraction of the overall discharged thermal power at a temperature suitable for cogeneration applications (80-90 C), extracting the heat from the ORC unit regenerator. The paper will describe also this solution and the advantages achievable.