Abstract: The solidification and molding of lunar regolith are essential for constructing lunar habitats. This study introduces an innovative lunar regolith molding technique that synergistically combines solar concentration, flexible optical fiber bundle energy...
Abstract The production of alternative renewable fuels is imperative for decarbonising hard-to-electrify sectors. Dimethyl ether (DME) is an aerosol propellant and a low-emission candidate for fossil fuel substitution. The main conventional DME production process is...
Abstract This research, developed in the framework of the SCARABEUS project, studies the off-design performance of transcritical power cycles running on C2-S2 mixtures in Concentrated Solar Power applications. The objective of this work is to identify optimum...
Abstract This paper proposes and builds the first megawatt thermal (MWth) class particle/supercritical carbon dioxide (sCO2) fluidized bed heat exchanger system for next generation concentrated solar power (CSP) plant. In this CSP plant, particles were chosen as the...
Abstract This paper aims to present a numerical study that aims to enhance the thermal efficiency of externally finned solar absorber tubes for use in the solar parabolic trough collector (SPTC). Compared to the internal finned tube, the external finned radiation...
Abstract: This paper concerns solar-to-thermal energy conversion processes in an open cavity volumetric receiver for a 50-MWth integrated beam-down receiver-storage concentrating solar thermal system. A multiphysical model was developed in a COMSOL Multiphysics 6.1...
Abstract: High–temperature solar reactors, which directly heat particle materials, are one of the promising paths leading to more sustainable industrial processes. In case of controlled atmosphere processes, the presence of a window could strongly increase the system...
Abstract One objective for the 3rd Generation of Concentrating Solar Power technologies is to improve the efficiency of Central Tower, which is among the most promising solar concentration technologies. Central Tower Power Generation Plants are made up of hundreds of...
Abstract A new optimization method was proposed to design high-performance deformable petal heliostat fields for concentrated solar power. The petal field was divided into individual sectors, each separately designed to balance pattern orderliness and flexibility. A...
Abstract Falling particle receiver (FPR) systems are a rapidly developing technology for concentrating solar power applications. Solid particles are used as both the heat transfer fluid and system thermal energy storage media. Through the direct irradiation of the...
Abstract: This study investigates the thermal performance of cavity-shaped porous solar receivers (C-PSR) designed to reduce peak solid temperature and re-radiation losses by optimizing the matching between the heat transfer fluid mass velocity and concentrated solar...
Abstract: An experimental and computational research was performed to explore the augmentation of turbulent convection in a solar receiver channel by utilizing louver-punched V-type winglets (LPVWs) that were fixed to the absorber plate. The simulation utilized the...
Abstract: Volume-averaging method constitutes an efficacious approach for analyzing and optimizing the overall efficiency of the porous receivers. However, the accuracy in the prediction of heat transfer process is significantly contingent upon the precise assessment...
Abstract Concentrated Solar Power (CSP) systems utilizing tower technology are acknowledged as a promising solution for generating dispatchable and renewable electricity. In the pursuit of heightened efficiency and competitiveness, novel receiver technologies,...
Abstract Solar thermal energy is a promising renewable energy resource that provides sustainable energy. Due to their effectiveness as solar thermal collectors, parabolic dish collectors are commonly used in various thermal energy system applications. Hybrid designs...
Abstract Honeycomb volumetric solar receivers have emerged as promising candidates for concentrating solar power applications because of their thermal and mechanical properties, enabling the efficient heating of fluids. Despite their potential, challenges remain in...
Abstract Star-shaped receivers represent a novel receiver concept to increase performance and reduce cost of solar tower plants, boosting the competitiveness of these renewable and dispatchable power production technology. This article presents a comprehensive...
Abstract: Facing the challenges of energy crisis and climate change, solar-to-fuel is recognized as a promising approach to promote renewable energy as an alternative to fossil energy. We have proposed a solar-to-fuel system that adopts the spectral beam splitting...
Abstract Two-step thermochemical cycles are efficient for producing H2 with solar energy, however, they face challenges with thermal losses at high temperatures needed for metal oxide reduction. This study introduces the first experimental demonstration of a...
Abstract This work studies heat transport in the fluid–solid interface of a packed bed to demonstrate the feasibility of preheating lumpy manganese ores to 600 °C with air at 750 °C. Preheated manganese ores aim to reduce furnace energy consumption during smelting in...
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