New Trends in Designing Parabolic trough Solar Concentrators and Heat Storage Concrete Systems in Solar Power Plants

Salomoni, Valentina; Majorana, C. E.; Giannuzzi, Giuseppe; Miliozzi, Adio; Nicolini, Daniele

doi:10.5772/8071

Cited by 6 publications

(1 citation statement)

References 17 publications

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“…Note that, for brevity's sake, the detailed description of the trough prototype and of the experimental activity carried out at the laboratories of the Politecnico di Milano to test its performances are reported in the paper [14] by some of the same authors of the present work. The interested reader is kindly referred to that paper and to the further works [15][16][17][18][19][20][21] for a thorough overview of the prototype and of the novel technological solutions distinguishing its design from those available on the market. Specifically, in the references [18,19] the novelty aspect of the design of the present parabolic trough collector are discussed in detail.…”

Section: Numerical Model Of the Parabolic Trough Collectormentioning

confidence: 99%

Finite Element Modelling of a Parabolic Trough Collector for Concentrated Solar Power

et al. 2021

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Nowadays the design of large-scale structures can be effectively improved by the adoption of numerical models. Even if experimental tests still play a fundamental role, a methodological approach that combines experimental testing and modelling technique can significantly improve the understanding of the matter. This, in fact, would result in a more reliable optimization process, drastically reducing efforts and uncertainties towards the implementation of the final product. The present work deals with the development of a finite element model for the analysis of a full-scale prototype of an innovative parabolic trough collector. The collector is analysed under several load conditions in order to evaluate its structural behaviour. Each load configuration is also numerically reproduced. Moreover, it is demonstrated that the model is capable of reproducing both the global (stiffness) and local (strain state) behaviour of the structure. Specifically, the comparison between experimental data and numerical results show a good agreement for the global parameter torsional stiffness. Local strain values are also well reproduced in high-stressed zone. Thus, the model can be used as a reliable “virtual tool” for designers to evaluate the suitability of layout modifications, thereby replacing and reducing the amount of commonly needed experimental tests and, consequently, reducing time and costs. Finally, an example of the potentiality of the finite element model adopted for a computer-aided engineering approach is shown to determine the most promising solution for increasing the torsional stiffness of the trough, while simultaneously limiting the required experimental tests.

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Section: Numerical Model Of the Parabolic Trough Collectormentioning

confidence: 99%

Finite Element Modelling of a Parabolic Trough Collector for Concentrated Solar Power

et al. 2021

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Solar/biomass hybrid cycles with thermal storage and bottoming ORC: System integration and economic analysis

et al. 2017

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This paper focuses on the thermodynamic modelling and thermo-economic assessment of a novel arrangement of a combined cycle composed of an externally fired gas turbine (EFGT) and a bottoming organic Rankine cycle (ORC). The main novelty is that the heat of the exhaust gas exiting from the gas turbine is recovered in a thermal energy storage from which heat is extracted to feed a bottoming ORC. The thermal storage can receive heat also from parabolic-trough concentrators (PTCs) with molten salts as heat-transfer fluid (HTF). The presence of the thermal storage between topping and bottoming cycle facilitates a flexible operation of the system, and in particular allows to compensate solar energy input fluctuations, increase capacity factor, increase the dispatchability of the renewable energy generated and potentially operate in load following mode. A thermal energy storage (TES) with two molten salt tanks (one cold and one hot) is chosen since it is able to operate in the temperature range useful to recover heat from the exhaust gas of the EFGT and supply heat to the ORC. The heat of the gas turbine exhaust gas that cannot be recovered in the TES can be delivered to thermal users for cogeneration. The selected bottoming ORC is a superheated recuperative cycle suitable to recover heat in the temperature range of the TES with good cycle efficiency. On the basis of the results of the thermodynamic simulations, upfront and operational costs assessments and subsidized energy framework (feed-in tariffs for renewable electricity), the global energy conversion efficiency and investment profitability are estimated

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Design, fabrication and analysis of solar parabolic trough collector for steam engine

Iqbal

Khan³

et al. 2014

2014 International Conference on Robotics and Emerging Allied Technologies in Engineering (iCREATE)

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New Trends in Designing Parabolic trough Solar Concentrators and Heat Storage Concrete Systems in Solar Power Plants

Cited by 6 publications

References 17 publications

Finite Element Modelling of a Parabolic Trough Collector for Concentrated Solar Power

Finite Element Modelling of a Parabolic Trough Collector for Concentrated Solar Power

Solar/biomass hybrid cycles with thermal storage and bottoming ORC: System integration and economic analysis

Design, fabrication and analysis of solar parabolic trough collector for steam engine

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