Comparison of Different Technologies for Integrated Solar Combined Cycles: Analysis of Concentrating Technology and Solar Integration

Antonio Rovira, Consuelo Sánchez, Manuel Valdés, Ruben Abbas, Rubén Barbero, María José Montes, Marta Muñoz, Javier Muñoz-Antón, Guillermo Ortega and Fernando Varela
Additional contact information
Antonio Rovira: E.T.S. Ingenieros Industriales, Universidad Nacional de Educación a Distancia (UNED), c/ Juan del Rosal, 12, 28040 Madrid, Spain
Consuelo Sánchez: E.T.S. Ingenieros Industriales, Universidad Nacional de Educación a Distancia (UNED), c/ Juan del Rosal, 12, 28040 Madrid, Spain
Manuel Valdés: E.T.S. Ingenieros Industriales, Universidad Politécnica de Madrid, c/ José Gutierrez Abascal, 2, 28006 Madrid, Spain
Ruben Abbas: E.T.S. Ingenieros Industriales, Universidad Politécnica de Madrid, c/ José Gutierrez Abascal, 2, 28006 Madrid, Spain
Rubén Barbero: E.T.S. Ingenieros Industriales, Universidad Nacional de Educación a Distancia (UNED), c/ Juan del Rosal, 12, 28040 Madrid, Spain
María José Montes: E.T.S. Ingenieros Industriales, Universidad Nacional de Educación a Distancia (UNED), c/ Juan del Rosal, 12, 28040 Madrid, Spain
Marta Muñoz: E.T.S. Ingenieros Industriales, Universidad Nacional de Educación a Distancia (UNED), c/ Juan del Rosal, 12, 28040 Madrid, Spain
Javier Muñoz-Antón: E.T.S. Ingenieros Industriales, Universidad Politécnica de Madrid, c/ José Gutierrez Abascal, 2, 28006 Madrid, Spain
Guillermo Ortega: E.T.S. Ingeniería, Universidad de Huelva, ctra. Huelva-Palos de la Frontera, s/n, La Rábida, 21819 Huelva, Spain
Fernando Varela: E.T.S. Ingenieros Industriales, Universidad Nacional de Educación a Distancia (UNED), c/ Juan del Rosal, 12, 28040 Madrid, Spain

Energies, 2018, vol. 11, issue 5, 1-16

Abstract: This paper compares the annual performance of Integrated Solar Combined Cycles (ISCCs) using different solar concentration technologies: parabolic trough collectors (PTC), linear Fresnel reflectors (LFR) and central tower receiver (CT). Each solar technology (i.e. PTC, LFR and CT) is proposed to integrate solar energy into the combined cycle in two different ways. The first one is based on the use of solar energy to evaporate water of the steam cycle by means of direct steam generation (DSG), increasing the steam production of the high pressure level of the steam generator. The other one is based on the use of solar energy to preheat the pressurized air at the exit of the gas turbine compressor before it is introduced in the combustion chamber, reducing the fuel consumption. Results show that ISCC with DSG increases the yearly production while solar air heating reduces it due to the incremental pressure drop. However, air heating allows significantly higher solar-to-electricity efficiencies and lower heat rates. Regarding the solar technologies, PTC provides the best thermal results.

Keywords: integrated solar combined cycle; parabolic trough collector; linear Fresnel reflector; central receiver system (search for similar items in EconPapers)
JEL-codes: Q Q0 Q4 Q40 Q41 Q42 Q43 Q47 Q48 Q49 (search for similar items in EconPapers)
Date: 2018
References: View references in EconPapers View complete reference list from CitEc
Citations: View citations in EconPapers (5)

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