8. Specific Application Cases with GT Commercial Units

In this final chapter, detailed application cases of waste-to-energy (WTE) integrated with different commercial gas turbine (GT) units are shown and discussed. Detailed modifications of the WTE cycle and the resulting enhancement of its performance are presented. The analysis shows that combining WTE and GTs provides power output increase of up to 80 % and a steam turbine (ST) mass flow increase of up to 50 %, compared with a state-of-the-art midsize reference WTE with an efficiency of 27 %. A first law efficiency increase in the range of 8–15 percentage points can occur, depending on the GT model and layout selection. Results of waste-to-energy–gas turbine (WTE–GT)-specific application cases suggest issues and useful guidelines to (i) create new advanced WTE–GT integrated power plants or to (ii) repower existing low-performing WTE power plants to increase waste conversion into energy.