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Energy–exergy analysis and modernization suggestions for a combined-cycle power plant

✍ Scribed by Ahmet Cihan; Oktay Hacıhafızogˇlu; Kamil Kahveci

Publisher
John Wiley and Sons
Year
2006
Tongue
English
Weight
127 KB
Volume
30
Category
Article
ISSN
0363-907X

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✦ Synopsis

Energy and exergy analysis were carried out for a combined-cycle power plant by using the data taken from its units in operation to analyse a complex energy system more thoroughly and to identify the potential for improving efficiency of the system. In this context, energy and exergy fluxes at the inlet and the exit of the devices in one of the power plant main units as well as the energy and exergy losses were determined. The results show that combustion chambers, gas turbines and heat recovery steam generators (HRSG) are the main sources of irreversibilities representing more than 85% of the overall exergy losses. Some constructive and thermal suggestions for these devices have been made to improve the efficiency of the system.

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