Category: published research

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Published at Solar Energy – Techno-economic assessment of a numbering-up approach for a 100 MWe third generation sodium-salt CSP system

Abstract: This work presents the design and techno-economic analysis of a 100 MWe concentrated solar power (CSP) system using a supercritical CO2 power block with 700 °C input temperature. Aiming to leverage the relatively higher efficiency of small heliostat fields and potential multi-build discounts, a numbering-up approach is examined, developing four alternative configurations (1×100, 2×50, …

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Published at Energy Conversion and Management – Selection of iron-based oxygen carriers for two-step solar thermochemical splitting of carbon dioxide

Abstract: The two-step solar thermochemical cycle is a prospective clean energy technology that enables the direct splitting of water and carbon dioxide for solar fuel production. However, immature oxygen carriers fundamentally restrict the solar-to-fuel conversion efficiency and thus prevent this technology from immediate industrial uptake. Focusing on the conventional iron-based oxygen carriers, this study intends …

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Published at Energy Conversion and Management – Structural stabilization of granular Ca(OH)2 by coating with nanostructured additives for thermochemical cycling in a fixed reaction bed

Abstract: Thermochemical energy storage systems have a high potential to support a future energy supply based on renewables by providing comparably high storage capacities and option for long-term, cold and loss free storage, that allows a flexible utilization in several application areas. Due to its cost efficiency and abundance the reaction system Ca(OH)2/CaO is currently …

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Published – Technical, economic and environmental analysis of solar thermochemical production of drop-in fuels

Fig. 5. Effect of the location on the minimum fuel selling price (€2020) with cost-built up for one GJ of jet fuel produced via the solar thermochemical pathway. 25 years lifetime. Abstract: This study analyzes the technical performance, costs and life-cycle greenhouse gas (GHG) emissions of the production of various fuels using air-captured water and …

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Published at Energy – Concentrating efficiency loss of heliostat with multiple sub-mirrors under wind loads

Heliostats in a Tower CSP project IMAGE@GrupoCobra Abstract: As an important design load for heliostat, wind load crucially affects the safety and concentrating performance. Herein, an evaluation method is proposed to study the impacts of wind loads on concentrating efficiency loss of the heliostat with multiple sub-mirrors. In particular, the computation method and evaluation index …

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Published at Applied Energy – Market profitability of CSP-biomass hybrid power plants: Towards a firm supply of renewable energy

Market profitability of CSP-biomass hybrid power plants: Towards a firm supply of renewable energy Abstract: CSP-biomass hybrid power plants are promising options for displacing electricity from flexible fossil systems and increasing the share of dispatchable renewable energy in power grids. However, they are investment-intensive technologies whose competitiveness in electricity markets is still uncertain. This paper …

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