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Energies 2017, 10(12), 1943; https://doi.org/10.3390/en10121943

Charge and Discharge Analyses of a PCM Storage System Integrated in a High-Temperature Solar Receiver

Department of Engineering, University of Roma Tre, Via della Vasca Navale 79, 00146 Rome, Italy
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Received: 31 October 2017 / Revised: 15 November 2017 / Accepted: 20 November 2017 / Published: 23 November 2017
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Abstract

Solar Dish Micro Gas Turbine (MGT) systems have the potential to become interesting small-scale power plants in off-grid or mini-grid contexts for electricity or poly-generation production. The main challenging component of such systems is the solar receiver which should operate at high temperatures with concentrated solar radiations, which strongly vary with time. This paper deals with the design and the analysis of a novel solar receiver integrated with a short-term storage system based on Phase Change Materials to prevent sudden variations in the maximum temperature of the MGT working fluid. Particularly, the charge and discharge behavior of the storage system was analyzed by means of Computational Fluid Dynamic methods to evaluate the potentiality of the concept and the component capabilities. Achieved results were highly satisfactory: the novel solar receiver has a good thermal inertia and can prevent relevant fluctuations in the working fluid temperature for 20–30 min. View Full-Text
Keywords: concentrated solar power plant; solar receiver; Phase Change Materials (PCM) storage system concentrated solar power plant; solar receiver; Phase Change Materials (PCM) storage system
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Giovannelli, A.; Bashir, M.A. Charge and Discharge Analyses of a PCM Storage System Integrated in a High-Temperature Solar Receiver. Energies 2017, 10, 1943.

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