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Título del libro: Proceedings Of The 25th International Conference On Efficiency, Cost, Optimization And Simulation Of Energy Conversion Systems And Processes, Ecos 2012
Título del capítulo: Thermoeconomic analysis and optimization in a combined cycle power plant including a heat transformer for energy saving

Autores UNAM:
WILFRIDO RIVERA GOMEZ FRANCO;

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Autores externos:

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Idioma:
Inglés

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Año de publicación:
2012

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Palabras clave:

Combined cycle power plants; Combustion; Corrosion; Costs; Energy conservation; Energy conversion; Exergy; Fossil fuels; Fuels; Proven reserves; Sulfur; Waste heat; Heat transformer; Natural gas composition; Predictive analysis; Predictive modeling; Recycling technology; Thermo-economic; Thermoeconomic analysis; Use of renewable energies; Heat exchangers

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Resumen:

Nowadays, the use of renewable energy is not capable of replacing the fossil energy, so, new technologies such as the combined cycle power, have been developed using the minimum fuel to obtain the maximum performance. In this research, through the exergy analysis and thermoeconomics techniques a predictive analysis was developed according two possible scenarios: the sulfur content increase in the fuel composition and the implementation of an innovative heat recycling technology such as the heat transformers. Exergy analysis was applied to each of equipment in an existing combined power cycle plant of 531 MW of power capacity, the individual and global efficiency were obtained, as well as, the effects of different concentrations of sulfur in natural gas composition before and during combustion were analyzed, and also the implementation of a heat transformer was proposed in order to reduce waste heat discharged to the atmosphere. As a result of the study, the use of a heat transformer was suggested in the gas turbines, where the biggest exergy loss was located with the purpose to reduce the consumed fuel in an order of 4.5% with important economic savings. Also a predictive model of the corrosion in thermoeconomics terms was obtained, allowing determining the irreversibility cost due to corroded pipes and the presence of sulfur in the fuel composition, which will increase due to the location of new fossil fuel reserves in inaccessible sites will be expected, so that fossil fuels with higher impurities will be obtained. Predictive models, related to exergy consumed and the implementation of new technologies are useful to estimate in a quick and easy way the main variables in a process.

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Entidades citadas de la UNAM:

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Fuente:


ISBN:
9788866553229
Editorial:
Aabo Akademi University

Tipo de producto:
Conference Paper