A thermodynamic analysis of Rankine cycles of two organic fluids exploiting a geothermal primary source is
performed by using a flow-chart numerical tool based on a lumped parameters approach. As result, we have been
able to draw the several transformations composing the cycle in the T-s plan. From post-processing, cycle efficiency
and energy benefit have been quantified in several operating conditions. Influence of vaporization and condensation
pressures, cooling water temperature and mass flow rate of the geothermal fluid on thermodynamic performances