In this paper, combined cycle (CC) power block parameters are optimized for its application coupled to concentrating solar power (CSP) plant. CSP hybrid plant is based on pressurized air receiver technology using natural gas assisted burner while the CC power block consists on high temperature open air Brayton cycle connected to bottoming steam Rankine cycle. Due to plant layout flexibility introduced by CC arrangements, three preferred configurations will be analyzed and optimized based on the intermediate pressure levels of the bottoming cycle. Benefits and drawbacks of each configuration will be discussed along the paper and the optimum solution will be proposed as the reference power block for electricity production at Integrated Solar Combined Cycle (ISCC) power plants. Results demonstrate that using current solar air receiver technology the system efficiency is far (around 47%) from the one expected from modern commercial CC systems (nearly 60%). The lower power cycle efficiency found was mainly based on pressure restrictions (below 6 bar) imposed by current air receiver designs what also implied lower temperature for the gas turbine.
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8 November 2018
SolarPACES 2017: International Conference on Concentrating Solar Power and Chemical Energy Systems
26–29 September 2017
Santiago, Chile
Research Article|
November 08 2018
Optimization of an integrated solar combined cycle
Miguel A. Reyes-Belmonte;
Miguel A. Reyes-Belmonte
1
IMDEA Energy Institute
, Avda. Ramón de la Sagra 3, 28935 Móstoles, Madrid (Spain
)
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Francisco J. Pino;
Manuel Romero;
Manuel Romero
1
IMDEA Energy Institute
, Avda. Ramón de la Sagra 3, 28935 Móstoles, Madrid (Spain
)
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Christian Suarez;
Christian Suarez
3
AICIA. Camino de los
Descubrimientos S/N. Seville (Spain
)
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José González-Aguilar;
José González-Aguilar
a)
1
IMDEA Energy Institute
, Avda. Ramón de la Sagra 3, 28935 Móstoles, Madrid (Spain
)a)Corresponding author: jose.gonzalez@imdea.org
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José Guerra
José Guerra
2
University of Seville. Termotecnia Group. Energy Engineering Department
. Seville (Spain
)
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a)Corresponding author: jose.gonzalez@imdea.org
b)Corresponding author: fjp@us.es
AIP Conf. Proc. 2033, 210012 (2018)
Citation
Miguel A. Reyes-Belmonte, Francisco J. Pino, Manuel Romero, Christian Suarez, José González-Aguilar, José Guerra; Optimization of an integrated solar combined cycle. AIP Conf. Proc. 8 November 2018; 2033 (1): 210012. https://doi.org/10.1063/1.5067214
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