Abstract :

In this paper, we propose a thermo-economic study of a low temperature Organic Rankine Cycle (ORC) for CHP purposes. The geothermal resource and the biogas engine exhaust gases combine to supply the thermal energy input for the hybrid power plant. Parameters such as ORC working fluid, supply temperature of the heating network, and geothermal water temperature are used to make a comparison to other geothermal CHP ideas. Hybrid power plants are more efficient than traditional CHP models or using the energy sources individually, according to both the second law of thermodynamics and economic criteria.