2018
DOI: 10.1016/j.enconman.2018.03.084
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Roads to improve the performance of hybrid thermosolar gas turbine power plants: Working fluids and multi-stage configurations

Abstract: This paper presents a general thermodynamic model for hybrid Brayton central tower thermosolar plants. These plants have been proved to be technically feasible but R+D efforts need to be done in order to improve its commercial interest. From the thermodynamic viewpoint it is necessary to increase its performance to get larger power production with reduced fuel consumption, and so reduced emissions. We develop a model for multi-step compression and expansion stages with that aim. The model is flexible and allow… Show more

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Cited by 20 publications
(50 citation statements)
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“…All heat transfers and losses included in the model are schematically represented. Details on all definitions, calculations, and equations can be found in previous works [21,22]. The overall plant thermal efficiency, η, is defined as the ratio between the net power output and the total energy input per unit time:…”
Section: Overall Plant Modelmentioning
confidence: 99%
See 3 more Smart Citations
“…All heat transfers and losses included in the model are schematically represented. Details on all definitions, calculations, and equations can be found in previous works [21,22]. The overall plant thermal efficiency, η, is defined as the ratio between the net power output and the total energy input per unit time:…”
Section: Overall Plant Modelmentioning
confidence: 99%
“…Explicit calculations to obtain this equation can be found in [21,22]. In the case of a purely solar operation, f = 1 and η = η s η h ε HS , and for pure combustion, f = 0 and…”
Section: Overall Plant Modelmentioning
confidence: 99%
See 2 more Smart Citations
“…Genetic algorithm and TOPSIS method implemented to find the optimal operating point. Santos and et al [14] modeled Brayton hybrid thermo-solar plants and considered Multi-stage recuperative configurations and different working fluids. Results show the good improvement over a reference plant.…”
Section: Introductionmentioning
confidence: 99%