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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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Published at Chemical Engineering – Calcium-based composites directly irradiated by solar spectrum for thermochemical energy storage

Abstract The optical absorptance of calcium-based composites used in direct solar-driven calcium-looping thermochemical energy storage systems should be improved. Experimental data obtained by thermogravimetric analyzer (TGA) cannot adequately describe the realistic performance of such calcium-based composites. In this work, calcium-based composites filled in a fixed bed reactor were directly irradiated by concentrated sunlight to examine …

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Published at Energy Conversion and Management – Efficient distributed concentrating solar power system with ammonia-based chemical heat pump

Abstract This paper proposed a distributed concentrating solar power system coupled with an ammonia-based chemical heat pump. The proposed system is able to upgrade the solar thermal energy absorbed from 450 °C to 650 °C. To design a concentrated solar module, consisting of a Linear Fresnel Reflector field and a Compound Parabolic Collector, for the …

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Published at Solar Energy Materials and Solar Cells – Innovative lifetime testing protocol for high-temperature secondary reflector materials used in concentrated solar thermal energies

Abstract: The actual energy market based on fossil fuels is the responsible of more than half of the greenhouse gases generated worldwide. Renewable energies play a fundamental role to lead the transformation towards an energy market less damaging for the environment. Concentrated solar thermal (CST) energy is essential to achieve this objective because it is …

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Published at Solar Energy – Unmanned Aerial Vehicles (UAVs) in the planning, operation and maintenance of concentrating solar thermal systems: A review

Abstract: The technological advancements achieved in the field of Unmanned Aerial Vehicles (UAVs) have positioned this technology as a key enabling technology for revolutionizing the entire energy industry by facilitating diverse operations and tasks that would otherwise be either impossible to carry out, costly, labour intensive, and, in some cases, dangerous. The plethora of UAV-based …

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Published at Energies – A Novel Dual Receiver–Storage Design for Concentrating Solar Thermal Plants Using Beam-Down Optics

Abstract: Advanced power cycles—such as the supercritical carbon dioxide (sCO2) cycle—have the potential to reduce the levelized cost of energy (LCOE) of concentrated solar thermal power (CST) plants by significantly boosting their overall solar-to-electric efficiency. To successfully integrate these cycles into CST plants, the industry may need to transition away from liquid working fluids (e.g., …

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Published at Solar Energy – Black coating of quartz sand towards low-cost solar-absorbing and thermal energy storage material for concentrating solar power

Published at Solar Energy – Black coating of quartz sand for low-cost solar-absorbing and thermal energy storage material for concentrating solar power Abstract: Solid particles-based direct solar absorbing heat transfer fluid (HTF) and thermal energy storage (TES) material is gaining increasing interest for high-temperature concentrating solar power (CSP). However, there is no particulate material that …

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Published at Solar Energy – Simplified analytical model to describe wind loads and wind-induced tracking deviations of heliostats

Simplified analytical model to describe wind loads and wind-induced tracking deviations of heliostats Abstract: Wind-induced tracking deviations of heliostats can be analyzed through numerical simulations or experimental studies on a full-scale heliostat. However, these methods are relatively costly and often, simpler estimations are necessary and sufficient. One simpler approach is to use an analytical model that describes …

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Published at Applied Catalysis – Structured sulphur trioxide splitting catalytic systems and allothermally-heated reactors for the implementation of Sulphur-based thermochemical cycles via a centrifugal solar particle receiver

Structured sulphur trioxide splitting catalytic systems and allothermally-heated reactors for the implementation of Sulphur-based thermochemical cycles via a centrifugal solar particle receiver Abstract: Catalytic sulphur trioxide splitting is the highest-temperature (850–900 °C), endothermic step of several sulphur-based thermochemical cycles targeted to production of hydrogen or solid sulphur. The demonstrated capability of centrifugal particle solar receivers of …

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Published at Energy – Performance analysis of a light uniform device for the solar receiver or reactor

IMAGE@Cerro Dominador Tower Concentrating Solar Power plant, Chile Abstract: Solar receivers and reactors are critical equipment to convert high-flux solar energy into thermal and chemical energy. However, the high flux solar energy is highly uneven and may shorten the solar receiver and reactor life due to considerable fatigue strain. This paper proposes a new Light …

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