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Academic literature on the topic 'Cylindro-parabolique'
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Journal articles on the topic "Cylindro-parabolique"
Marif, Yacine. "Etude Comparative entre les Modes de Poursuite Solaire d'un Concentrateur Solaire Cylindro-Parabolique." حوليات العلوم و التكنولوجيا 6, no. 2 (2014): 94–102. http://dx.doi.org/10.12816/0039173.
Full textDissertations / Theses on the topic "Cylindro-parabolique"
Chalqi, Fatima-Zahra. "Diverses approches de modélisation d’un capteur solaire cylindro-parabolique." Perpignan, 2013. http://www.theses.fr/2013PERP1130.
Full textIn this work we explore various modeling approaches for a parabolic trough solar receiver. We have developed original models which describe the different thermal exchanges between the principal elements of the solar collector. This modeling investigation was considered in several forms. Firstly we investigate a distributed parameter system of three equations, two equations, and finally one single equation (all of hyperbolic type). Secondly we have established a lumped model by considering that the metal tube is divided into a finite number of sections, with a constant temperature in each. Various simulations have given significant results. The numerical validation of the various models was based on Ain Beni Mathar Thermo-Solar Power Station located in northeast Morocco. Finally, future prospects on system analysis and control have been stated
Fasquelle, Thomas. "Modélisation et caractérisation expérimentale d’une boucle solaire cylindro-parabolique intégrant un stockage de type thermocline." Thesis, Perpignan, 2017. http://www.theses.fr/2017PERP0040/document.
Full textLike other renewable energy technologies, concentrated solar power (CSP) suffers from resource intermittence. Thermocline technology is a promising solution to decrease cost of thermal energy storage in CSP plants. Thermocline behavior has thoroughly been studied in the past years and its behavior is considered well known. However no study treated of thermocline tanks integrated in CSP plants. Thus, the impact of the varying outlet temperature of the thermocline storage has not been assessed yet. This work aims to fill this lack of knowledge by studying a mini parabolic trough power plant integrating a thermocline tank as storage.First, the compatibility between the heat transfer fluid of the plant (synthetic oil) and various potential filler materials (Cofalit, coal fly ash bricks, alumina) of the storage tank is verified. Then, some performance studies are performed on the three main components of the power plant (energy storage tank, solar collectors, steam generator). Finally, the behavior of the whole system is assessed, with a focus on the impact of the varying fluid temperature at the outlet of the thermocline tank on the other components.It has been shown that, with a proper sizing and an appropriate control strategy, thermocline technology induces very low decrease of the solar power plant performance in comparison to the conventional two tank technology (maximum 3-4% of electrical power production difference)
Bouvier, Jean-Louis. "Étude expérimentale d'une installation de micro-cogénération solaire couplant un concentrateur cylindro-parabolique et un moteur à cycle de Hirn." Thesis, La Rochelle, 2014. http://www.theses.fr/2014LAROS031/document.
Full textThe objective of this thesis is the experimental study of the energy performances of a micro combined solar heat and power (micro-CHP) unit. The prototype is composed of a solar parabolic trough collector coupled to a Hirn (superheated Rankine) cycle engine. The originalities of this project are the use of solar energy which is renewable and inexhaustible but intermittent, the direct steam generation with a reduced size parabolic trough collector (46.5 m²), the two axis tracking system and the coupling with an oil-free reciprocating steam engine. The first part of this study is focussed on the solar collector. Thermal performances under sunny and cloudy conditions are presented and the thermal efficiency is evaluated. The system dynamic is also investigated through the characterization of the inertia as well as a study of its response to perturbations. Then a control strategy is set up and validated. The second part deals with the characterization of the engine. Tests have been performed with a stable and variable heat source power. From these tests, an empirical model has been developed and used in a parametrical study. This study shows the significant influence of the pressure ratio and of the rotational speed on the efficiency of the engine. In the last part, global performances (efficiency, output thermal and electrical powers) of the entire micro-CHP unit are evaluated. Tests with controlled pressure and speed are presented. From operating maps established from an empirical model, a control strategy based on the use of a by-pass is set up and tested
Khennich, Mohammed. "Optimisation thermodynamique d’un procédé solaire utilisant un système de réfrigération à éjecto-compression pour la production du froid." Thèse, Université de Sherbrooke, 2016. http://hdl.handle.net/11143/9756.
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