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International Conference on Mechanical and Electrical Technology 2009 (ICMET 2009)

By
Wenzheng Li
Wenzheng Li
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ISBN:
9780791802946
No. of Pages:
287
Publisher:
ASME Press
Publication date:
2009

In this paper, exergetic, thermoeconomic and improved combined pinch and exergy analyses have been performed for a 160-MW a 160-MW combined cycle power plant. The simulation of this plant has been performed in GT PRO simulator. An Excel Add-in called GT PRO Link has been developed to calculate the exergy of each stream from a GT PRO simulation results. Meanwhile, computer code has been developed for thermoeconomic and improved combined pinch-exergy analysis in Matlab environment. Thermoeconmic optimization through Genetic Algorithm has been applied for a 160-MW combined cycle power plant to minimization of electricity cost. Also, it is vital to display the system information graphically for one to visualize the performance of system in base and optimum case by applying improved combined pinch and exergy analysis that . Results show overall exergetic efficiency increases about 4% through thermoeconomic optimization. Meanwhile, product cost of electricity in gas and steam turbines reduce to .0038 and .0138 $/MW consecutively.

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