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2015 | OriginalPaper | Chapter

8. Specific Application Cases with GT Commercial Units

Author : Lisa Branchini

Published in: Waste-to-Energy

Publisher: Springer International Publishing

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Abstract

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.

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Footnotes
1
The regeneration ratio is calculated as the ratio of the enthalpy rise in the feedwater HEs to the enthalpy increase in the ECO section without feedwater heating.
 
2
A factor equal to 0.21 has been assumed as the electric equivalent of GT-discharged heat, in line with typical 1PL CC values [78].
 
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Metadata
Title
Specific Application Cases with GT Commercial Units
Author
Lisa Branchini
Copyright Year
2015
DOI
https://doi.org/10.1007/978-3-319-13608-0_8