Enhancing Efficiency and Sustainability: Converting Simple Cycle Gas Stations to Combined Cycle in Iraq

Husam Abed Ibrahim (1), Mohamed Ali Rezgui (2), Ali Trabelsi (3)
(1) National Engineering School, University of Tunis El Manar, Tunisia
(2) National Engineering School, University of Tunis El Manar, Tunisia
(3) Laboratory of Mechanics, Production and Energy, Higher National Engineering of Tunis, University of Tunis, Tunisia
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H. A. Ibrahim, M. A. Rezgui, and A. Trabelsi, “Enhancing Efficiency and Sustainability: Converting Simple Cycle Gas Stations to Combined Cycle in Iraq”, Int. J. Adv. Sci. Eng. Inf. Technol., vol. 15, no. 3, pp. 908–918, Jun. 2025.
The practical thermal efficiency of gas turbine engines ranges between 28% and 33%. The global electric power sector, particularly in Iraq, faces significant challenges, including reduced hours of electrical energy supply to consumers and difficulties in its continuous distribution. This situation necessitates exploring solutions through investments in the electric power sector, as well as the rehabilitation and maintenance of stations, networks, and transmission lines, to minimize losses and prevent misuse. Additionally, there is a pressing need to address unauthorized access to power transmission lines and networks and to harness renewable energy sources to decrease atmospheric gas emissions and protect the environment. A noteworthy approach is the utilization of exhaust gas heat from thermal gas stations, proposing a transition from simple to combined cycle systems. This research aims to explore the potential of leveraging exhaust gas heat from gas thermal stations to shift their operational system from a simple cycle to a combined cycle. Such a transition promises to enhance electrical power production in Iraq, increase station efficiency, reduce gas emissions, and contribute to environmental conservation. Through detailed study and research, this paper aims to provide viable solutions to the pressing issues facing Iraq's electric power sector, emphasizing the importance of innovative approaches in overcoming these challenges and promoting sustainable energy development. In light of the growing global concern for energy conservation and environmental protection, the authors believe that this paper will stimulate a thought-provoking discussion.

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