Thermo-economic optimization of a real polygenerative district

Finally, attention is devoted to future lay-out modifications in order to reduce purchased electricity from the National grid in summer months, when, as the thermal request decreases, the CHP units are not currently properly exploited. Two different solutions are analyzed coupling the micro-gas turbine (mGT) CHP units with absorption chillers or with a small size organic Rankine cycle (ORC) turbine, and their thermo-economic performances are discussed in depth.