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Real-Time Thermodynamic Analysis of Gas Turbines in Combined Cycle Power Plants

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Abstract:

Improving the energy efficiency of thermal power plants through the thermodynamic analysis of their operational parameters in real time is a major issue in order to ensure rational and sustainable operation. An in-depth analysis has been conducted on the thermodynamic efficiency of three gas turbines in a gas/steam combined cycle power plant using real-time operational data. The presented work is part of the research that deals with operational parameters in order to maintain the performance of thermal power plants at the highest possible value. A combination of the first and second laws of thermodynamics has been developed to provide a model able of predicting the thermal efficiency of gas turbines in different operating modes in real-time. The results of our study indicate that each turbine demonstrated a thermal efficiency of around 33.5%. Additionally, the turbines produced an output power of 284 MW and had a specific fuel consumption rate of roughly 206 kg/MWh. The analysis not only verifies the durability of the turbines under various operating conditions, but also presents a verified method to monitor and improve energy efficiency in real time, which is crucial to optimize the power plant operations. Furthermore, this thermodynamic model can be used as a calculation program to be integrated into the display panel which will be used to provide operating indicators in real time. Keywords: Steam/Gas combined cycle, Gas turbine, Thermal performance, Energy conversion.

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International Journal of Engineering Research in Africa Vol. 75 View Preview

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Periodical:

International Journal of Engineering Research in Africa (Volume 75)

Pages:

99-116

DOI:

https://doi.org/10.4028/p-QGEx8v

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Online since:

October 2025

Authors:

Djelloul Azzouzi*, Mourad Moderres, Said Zafar

Keywords:

Energy Conversion, Gas Turbine, Steam/Gas Combined Cycle, Thermal Performance

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© 2025 Trans Tech Publications Ltd. All Rights Reserved

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