Advanced Exergy Investigation of Combined Cycle of Helium Reactor Gas Turbine with Organic Rankine Cycle

Document Type : Research Article

Authors

1 Mechanical engineering group, Azarbaijan Shahid Madani University

2 Tabriz university

Abstract

In this work, the combined cycle of a helium reactor gas turbine with an organic Rankine cycle is studied and compared from the perspective of conventional and advanced exergy analysis. Using Equation solving engineering software, modeling of this cycle has been done and the results of conventional energy and exergy analysis have been obtained. Then, to determine the appropriate prioritization of cycle component improvement from the perspective of advanced exergy analysis has been studied. In fact, advanced exergy analysis provides accurate information about the real potential for system performance improvement by dividing the exergy destruction of each component into endogenous, exogenous, avoidable, and unavoidable components. The results of advanced exergy analysis show that by modifying and upgrading the components of the system, 19.1% of the total exergy destruction of the system can be reduced. According to the advanced exergy analysis, the improvement priority belongs to the compressor and then to the reactor and gas turbine. However, from the conventional exergy analysis, the reactor's exergy destruction is greater than that of the compressor and the priority is on the reactor. In addition, based on the prioritization of advanced exergy analysis, it is possible to increase the cycle exergy efficiency from 75.21% to 82.51% and the cycle energy efficiency from 51% to 56.22%.

Keywords

Main Subjects

References

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Amirkabir Journal of Mechanical Engineering
Volume 54, Issue 7
October 2022
Pages 1553-1574

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