Eventos Anais de eventos
ENCIT 2022
19th Brazilian Congress of Thermal Sciences and Engineering
DETERMINATION OF EXERGETIC AND ECONOMIC PARAMETERS OF A NATURAL GAS COMBINED CYCLE THERMOELECTRIC POWER PLANT WITHOUT/WITH SUPPLEMENTARY FUEL BURNING
Submission Author:
Diego Jhovanny Mariños Rosado , SP
Co-Authors:
Diego Jhovanny Mariños Rosado, Miguel Huaraz Rodriguez, João Carvalho, Andrés Armando Mendiburu Zevallos
Presenter: Diego Jhovanny Mariños Rosado
doi://10.26678/ABCM.ENCIT2022.CIT22-0066
Abstract
The present article a natural gas combined cycle thermoelectric power plant, without and with supplementary fuel burning (SFB), was evaluated through an exergetic and economic analysis. The objective of this research is to determine and compare the exergetic parameters such as the exergetic efficiency and the destruction of exergy associated with the irreversibilities in each equipment of both systems. Finally, the economic analysis determined the expected annual benefit due to the pay-back and the electricity production cost (PCEE), incorporating the effects of the environmental impacts. When developing the present study in the combined cycle without/with SFB it was evidenced a global efficiency of 50.81% vs. 47.39%, respectively. In addition, the system without SFB showed better results of exergetic efficiency and irreversibility. The economic analysis verified the annual benefit due to the pay-back for an annual interest rate of 4%, 8% and 12%, and the PCEE showed an increase between 10% to 12% in the case of the system with SFB.
Keywords
combined cycle, Economic parameters, natural gas, exergetic efficiency, Supplementary fuel burning
