The paper presents an analysis of a recuperative gas turbine system used for micro-cogeneration based on energetic and exergetic principles. The system is composed of two compressors (one for the fuel, the other for air), a combustion chamber, a gas turbine, a recuperator used to preheat the air before entering the combustion chamber and a heat exchanger for heating water. The analysis compares three different configurations obtained by placing the recuperator upstream of, downstream of, or in parallel with the water heater. It is subject to the following assumptions: the fuel is injected steadily and ideally (without irreversibility), the air is a perfect gas, the heat exchangers are adiabatically isolated from the surroundings and the compressors and the turbine are adiabatic. A detailed analysis of the thermal and mechanical irreversibilities of the cycle is also presented. The optimization goal is to minimize the entropy generation or to maximize the useful exergy output of the system. With this approach the best configuration for a specified operating regime of micro-cogeneration can be determined.
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ASME 2012 11th Biennial Conference on Engineering Systems Design and Analysis
July 2–4, 2012
Nantes, France
Conference Sponsors:
- International
ISBN:
978-0-7918-4485-4
PROCEEDINGS PAPER
Modeling and Optimization of Heat Exchangers Within Gas Turbine Systems Available to Purchase
Georgiana Tirca-Dragomirescu,
Georgiana Tirca-Dragomirescu
University Politehnica of Bucharest, Bucharest, Romania
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Monica Costea,
Monica Costea
University Politehnica of Bucharest, Bucharest, Romania
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Michel Feidt,
Michel Feidt
Lorraine University, Nancy, France
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Jim McGovern,
Jim McGovern
Dublin Institute of Technology, Dublin, Ireland
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Alexandru Dobrovicescu,
Alexandru Dobrovicescu
University Politehnica of Bucharest, Bucharest, Romania
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Diana Tutica,
Diana Tutica
University Politehnica of Bucharest, Bucharest, Romania
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Abdelhamid Kheiri
Abdelhamid Kheiri
Lorraine University, Nancy, France
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Georgiana Tirca-Dragomirescu
University Politehnica of Bucharest, Bucharest, Romania
Monica Costea
University Politehnica of Bucharest, Bucharest, Romania
Michel Feidt
Lorraine University, Nancy, France
Jim McGovern
Dublin Institute of Technology, Dublin, Ireland
Alexandru Dobrovicescu
University Politehnica of Bucharest, Bucharest, Romania
Diana Tutica
University Politehnica of Bucharest, Bucharest, Romania
Abdelhamid Kheiri
Lorraine University, Nancy, France
Paper No:
ESDA2012-82672, pp. 699-708; 10 pages
Published Online:
August 12, 2013
Citation
Tirca-Dragomirescu, G, Costea, M, Feidt, M, McGovern, J, Dobrovicescu, A, Tutica, D, & Kheiri, A. "Modeling and Optimization of Heat Exchangers Within Gas Turbine Systems." Proceedings of the ASME 2012 11th Biennial Conference on Engineering Systems Design and Analysis. Volume 2: Applied Fluid Mechanics; Electromechanical Systems and Mechatronics; Advanced Energy Systems; Thermal Engineering; Human Factors and Cognitive Engineering. Nantes, France. July 2–4, 2012. pp. 699-708. ASME. https://doi.org/10.1115/ESDA2012-82672
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