Start-up performance of parabolic trough concentrating solar power plants

Ferruzza, Davide; Topel, Monika; Basaran, Ibrahim; Laumert, Björn; Haglind, Fredrik

doi:10.1063/1.4984542

Cited by 11 publications

(14 citation statements)

References 11 publications

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“…Figure 8 illustrates an analysis similar to the one described in section 3.1 but for a solar-driven operational strategy. The reference case adopted was for a SM equal to 2, being a representative value for existing power plant configurations like Andasol (Ferruzza et al, 2017). Following a similar consideration as before, if only hot evaporator start-ups are considered, the results indicate that the potential for improvement of the net electricity production is as low as 0.27 % (0.56GWhe), while for cold start-ups, this impact increases to a maximum of 2.3 %.…”

mentioning

confidence: 86%

“…The author implemented the parabolic trough sizing methodology and the TRNSYS model in DYESOPT and validated against data available in literature with a maximum error of -8.9 % (Ferruzza et al, 2017).…”

Section: Plant Design Parametersmentioning

confidence: 99%

“…On the other hand, there might be limiting factors for one component, which might reduce the required heating rate for another. For example, if the receiver or solar field are the limiting factors, there is no need for the SGS to be able to start up at a faster rate than that of the solar field (Ferruzza et al, 2017).…”

Section: Introductionmentioning

confidence: 99%

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Impact of steam generator start-up limitations on the performance of a parabolic trough solar power plant

et al. 2018

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confidence: 86%

Section: Plant Design Parametersmentioning

confidence: 99%

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Impact of steam generator start-up limitations on the performance of a parabolic trough solar power plant

et al. 2018

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“…In that work, all the components of the power block are modeled. In [42], a complex and detailed model developed in TRNSYS of the steam generator is presented to study the start-up stage. In [40], a complex model of a steam turbine is developed.…”

Section: Modeling Of the Steam Generator Variablesmentioning

confidence: 99%

Mathematical Modeling of the Mojave Solar Plants

Gallego

Macı́as²,

Castilla³

et al. 2019

Energies

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Competitiveness of solar energy is one of current main research topics. Overall efficiency of solar plants can be improved by using advanced control strategies. To design and tuning properly advanced control strategies, a mathematical model of the plant is needed. The model has to fulfill two important points: (1) It has to reproduce accurately the dynamics of the real system; and (2) since the model is used to test advanced control strategies, its computational burden has to be as low as possible. This trade-off is essential to optimize the tuning process of the controller and minimize the commissioning time. In this paper, the modeling of the large-scale commercial solar trough plants Mojave Beta and Mojave Alpha is presented. These two models were used to test advanced control strategies to operate the plants.

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“…The model presented and validated in Ref. [8] was modified to account for a new direct storage configuration as well as an adapted freeze protection system (electric heat tracing). The layouts of the analyzed power plants are shown in FIGURE 1.…”

Section: Modelling and Design Of The Parabolic Trough Power Plantsmentioning

confidence: 99%

Identification of optimum molten salts for use as heat transfer fluids in parabolic trough CSP plants. A techno-economic comparative optimization

Pan¹,

Ferruzza²,

Guédez³

et al. 2018

AIP Conference Proceedings

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Parabolic trough power plants using thermal oil as heat transfer fluid are the most mature concentrating solar power technology and state of the art. To further increase their efficiency and lower costs, molten salts can be used as heat transfer fluid. This results in higher operating temperature differences for improved cycle efficiencies and enables direct thermal energy storage at lower costs due to omission of the oil-to-salt heat exchanger and the need for smaller storage sizes. As a variety of salts are available to choose from, this study uses a multi-objective optimization to identify the most suitable heat transfer fluid for three locations in South Africa, Spain and Chile. The lowest values for the levelized costs of electricity (LCOE) can be found in Chile using Solar Salt as heat transfer fluid (75.0 $/MWhe). Generally, Solar Salt offers the lowest LCOE values followed by thermal oil and Hitec. The results also suggest that the choice of the heat transfer fluid is dependent on the direct normal irradiance (DNI) at each location. Thermal oil is competitive with Solar Salt in small systems at locations with low DNI values, whereas Hitec can be cheaper than thermal oil in large systems at locations with high DNI. Furthermore, it is also investigated at which freeze alert temperature set point the activation of the freeze protection system is optimal. The results indicate that this temperature should be chosen close to the solar field inlet temperature for small systems, while it can be lowered significantly for large systems to reduce electricity consumption from the freeze protection system.

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Start-up performance of parabolic trough concentrating solar power plants

Cited by 11 publications

References 11 publications

Impact of steam generator start-up limitations on the performance of a parabolic trough solar power plant

Impact of steam generator start-up limitations on the performance of a parabolic trough solar power plant

Mathematical Modeling of the Mojave Solar Plants

Identification of optimum molten salts for use as heat transfer fluids in parabolic trough CSP plants. A techno-economic comparative optimization

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