| Title | One MW Binary Cycle Turbogenerator Module Made in Europe |
|---|---|
| Authors | Gianfranco Angelino, Roberto Bini, Paola Bombarda, Mario Gaia, Pietro Girardi, Piero Lucchi, Ennio Macchi, Marco Rognon, Fabio Sabatelli |
| Year | 1995 |
| Conference | World Geothermal Congress |
| Keywords | binary unit, organic rankine, turbogenerator, low enthalphy, fluorinated propanes |
| Abstract | An Organic Rankine Cycle Turbogenerator producing 1.3 MW gross electric power has been designed, built and installed by two Italian Companies. The machine is the first One Megawatt size geothermal ORC completely realized in Europe. The unit operation started in July 1992 and the measured performance, compared to calculated values, is reported. Though the efficacy of the condenser is somewhat hindered by the incondensable gases, the overall efficiency is quite high, with a turbine efficiency in excess of 80 percent. The characteristics of some eligible, non combustible working fluids, as well as the advantages of multiple units cascading, are discussed. In conclusion ORC operating with non flammable fluids are an efficient and environmentally safe way to exploit low temperature geothermal sources. |