Case study for heat-waste recovery of the Heydariyeh gas-turbine power plant using S-CO2 brayton cycle.

The supply of energy needed by human societies is one of the most important issues facing experts due to the increasing technological growth and energy demand. In addition to discovering new energy sources, improving the performance of existing systems is also considered as an effective way to achieve this goal. Among the various methods of improving the performance of power generation systems, heat-waste recovery of power plants is focused by researchers. In this research, five different arrangements of supercritical carbon dioxide cycle have been used as heat recovery of Heydariyeh gas turbine power plant located in Iraq and their effects on the performance of the power plant has been studied. For this purpose, energy and exergy analysis has been used and the performance of these cycles in recovering energy from the heat lost by the mentioned power plant has been evaluated. The results indicate the ability to recover a maximum of 20.8MW of power by supercritical cycles proposed in this study. Indeed, adding this amount of power to the production capacity of Heydariyeh power plant will improve its efficiency by 6.5%. [ABSTRACT FROM AUTHOR]