A gas-turbine cogeneration system with a regenerative air preheater and a single-pressure exhaust gas boiler serves as an example for application of CHP Plant. This CHP plant which can provide 30 MW of electric power and 14kg/s saturated steam at 20 bars. The plant is comprised of a gas turbine, air compressor, combustion chamber, and air pre-heater as well as a heat recovery steam generator (HRSG). The design Parameters of the plant, were chosen as: compressor pressure ratio (re), compressor isentropic efficiency (ηac), gas turbine isentropic efficiency (ηgt), combustion chamber inlet temperature (T3), and turbine inlet temperature (T4). In order to optimally find the design parameters a thermoeconomic approach has been followed. An objective function, representing the total cost of the plant in terms of dollar per second, was defined as the sum of the operating cost, related to the fuel consumption. Subsequently, different pars of objective function have been expressed in terms of decision variables. Finally, the optimal values of decision variables were obtained by minimizing the objective function using Evolutionary algorithm such as Genetic Algorithm. The influence of changes in the demanded power on the design parameters has been also studied for 30, 40 MW of net power output.
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2010 14th International Heat Transfer Conference
August 8–13, 2010
Washington, DC, USA
Conference Sponsors:
- Heat Transfer Division
ISBN:
978-0-7918-4943-9
PROCEEDINGS PAPER
Exegetic Modeling and Second Law Based Optimization of Cogeneration Heat and Power System Using Evolutionary Algorithm (Genetic Algorithm)
Shahram Khalilarya
,
Shahram Khalilarya
Urmia University, Urmia, Iran
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Samad Jafarmadar
,
Samad Jafarmadar
Urmia University, Urmia, Iran
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Arzhang Abadi
Arzhang Abadi
Urmia University, Urmia, Iran
Search for other works by this author on:
Shahram Khalilarya
Urmia University, Urmia, Iran
Samad Jafarmadar
Urmia University, Urmia, Iran
Arzhang Abadi
Urmia University, Urmia, Iran
Paper No:
IHTC14-22113, pp. 17-25; 9 pages
Published Online:
March 1, 2011
Citation
Khalilarya, S, Jafarmadar, S, & Abadi, A. "Exegetic Modeling and Second Law Based Optimization of Cogeneration Heat and Power System Using Evolutionary Algorithm (Genetic Algorithm)." Proceedings of the 2010 14th International Heat Transfer Conference. 2010 14th International Heat Transfer Conference, Volume 8. Washington, DC, USA. August 8–13, 2010. pp. 17-25. ASME. https://doi.org/10.1115/IHTC14-22113
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