Abstract
Concentrated solar power driven systems using thermal energy storage technology are an attractive solution for medium-scale dispatchable cogeneration plants. Recently, a novel concentrating solar collector system using a micro-structured polymer foil-based solar collector, with a potential of large cost reduction compared with current solar collector systems, was proposed. A techno-economic analysis of two-tank indirect storage, two-tank direct storage and packed-bed rock storage, respectively, for the foil-based solar field driven cogeneration plant is presented in this paper. The objectives are to identify the most suitable energy storage technology and to identify the optimal design for such system. Three different heat transfer fluids and two different rocks are considered in the analysis. The effects of solar field heat transfer fluid's operating and cost parameters on the selection of storage system are studied. The results suggest that the packed-bed rock (considering quartzite rock) thermocline storage with Therminol 55 as heat transfer fluid is the preferred option, attaining a minimum levelized cost of electricity and fresh water of 0.103 €/kWhe and 0.995 €/m3, respectively, for Antofagasta, Chile. The levelized costs of electricity and water are about 11.2% and 11.9% lower, respectively, compared to those of the conventional two-tank indirect storage based plant.
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
