A 3D-Printed solar receiver could solve some problems holding back a new technology: High-temperature solar receivers - for solar thermochemistry and industrial heat - can be prone to uneven heat distribution. These temperature differences create thermal stress,...
solar thermochemistry
Published at Environmental Science and Technology – Solar-Powered Direct Air Capture: Techno-Economic and Environmental Assessment
Abstract Direct air capture (DAC) of CO2 has gained attention as a sustainable carbon source. One of the most promising technologies currently available is liquid solvent DAC (L-DAC), but the significant fraction of fossil CO2 in the output stream hinders its...
Published at Applied Energy – Systematic assessment for an integrated hydrogen approach towards the cross-regional application considering solar thermochemical and methanol carrier
Abstract Hydrogen holds promise as a clean energy carrier, but its industrial utilization is currently constrained by the challenges of green production and efficient cross-regional delivery. To this end, a novel integrated hydrogen energy system considering the...
Published at Journal of the American Chemical Society – Chemical Potential Analysis as an Alternative to the vanāt Hoff Method: Hypothetical Limits of Solar Thermochemical Hydrogen
Abstract The vanāt Hoff method is a standard approach for determining reaction enthalpies and entropies, e.g., in the thermochemical reduction of oxides, which is an important process for solar thermochemical fuels and numerous other applications. However, by...
Published at Royal Society of Chemistry – Thermochemical production of ammonia via a two-step metal nitride cycle ā materials screening and the strontium-based system
Abstract Ammonia synthesis via the catalytic HaberāBosch process is characterized by its high pressures and low single-pass conversions, as well as by the energy-intensive production of the precursors H2 and N2 and their concomitant greenhouse gas emissions....
Solar-heated cement calcining – aided by the greenhouse gas effect?
How a solar technology that harnesses the greenhouse gas effect to do good can cut CO2 emissions in cement-making So how would solar-heated cement calcining using the greenhouse effect work? Researchers at Sandia National Laboratories are advancing a new way to cut...
Published at Applied Thermal Engineering – Numerical investigation and comparison of tubular solar cavity receivers for simultaneous generation of superheated steam and hot air
Abstract: Solar cavity receivers are a crucial technology to transform solar energy into easily usable thermal energy. Various cavity receiver structures employing helical absorber tubes were investigated to provide either superheated steam or hot air efficiently....
A new common language to speed solar hydrogen research
Could the Chemical Potential Analysis method work better than the van't Hoff method? NRELās Stephan Lany proposes a new common language to help solar thermochemistry researchers select the redox materials that will most efficiently generate green hydrogen. He has...
Heat trap demonstrated in quartz at over 1,000Ā°C for solar receivers
Solar receiver efficiency in concentrated solar thermal (CST) energy is determined by how much solar radiation can be converted into useful heat for industry processes or solar thermochemistry. Heat lost to outside air reduces efficiency, so researchers are looking...
Published at Advanced Energy Materials – Thermochemical Oxygen Pumping with Perovskite Reticulated Porous Ceramics for Enhanced Reduction of Ceria in Thermochemical Fuel Production
Abstract: Within this work, reticulated monolithic foams and granules made from CaMnO3 ā Ī“Ā and strontium substituted variations are demonstrated to significantly improve the performance of a water splitting redox oxide when employed as a thermochemical oxygen pumping...
DLR Institute of Solar Research seeks a Master’s student in Mechanical Engineering
Hiring š Do you want to contribute to a renewable energy supply? Then the DLR Institute of Solar Research is the right place for you! Our institute researches the utilisation of solar energy with the aim of further reducing COā emissions. In addition to COā-free...
Valparaiso University undergrads demonstrate multi-year thermochemical energy storage
Three and a half years after a group of undergraduate researchers at Indianaās Valparaiso University stored heat at 1000Ā°C, they have extracted the heat in a proof of concept demonstration of the extremely long-duration potential of the redox cycle for solar...
Published at Applied Energy – Modeling and control strategy optimizing of solar flux distribution in a four quadrant and adjustable focusing solar furnace
Abstract The solar furnace is key equipment for the thermochemical reaction research which uses focused solar energy to drive the reactor, and the solar flux distribution on the reactor surface plays a decisive role in the regulation of the thermochemical reaction...
Published at Energy – A cascaded thermochemical energy storage system enabling performance enhancement of concentrated solar power plants
Abstract: Calcium looping (CaL) thermochemical energy storage (TCES) exhibits promising potential for application in concentrated solar power (CSP) plants. However, the CSP-CaL integrating system encounters challenges related to elevated heat loss and diminished power...
Published at Energy Conversion and Management – 4E analysis and parameter study of a solar-thermochemical energy storage CCHP system
Abstract: The combination of calcium looping and concentrating solar power (CSP) is a promising energy conversion technology that can greatly increase the share of solar energy used in combined cooling, heating and power (CCHP) systems. This paper designs a CCHP...
Published at Solar Energy Materials and Solar Cells – Incorporation of CaZrO3 into calcium-based heat carriers for efficient solar thermochemical energy storage
Abstract Calcium-based materials (CaCO3/CaO) have shown significant potential for use in thermochemical energy storage systems for concentrated solar power generation due to their low-cost, high-energy storage efficiency, and operational temperature range. However,...
Published at Energy – Analysis of heat and mass transfer in a porous solar thermochemical reactor
Abstract: Solar thermochemistry shows great potential as a viable solution for addressing the challenge of energy storage. The design of the reactor is still challenging the development and rapid upscaling of solar thermal conversion and storage processes. This study...
Published at Energy Conversion and Management – Research progress on metal oxide oxygen carrier materials for two-step solar thermochemical cycles in the last five years
Full-size image Abstract: In the evolving landscape of sustainable energy solutions, the approach of two-step solar thermochemical cycles assumes a position of paramount importance. Metal oxide oxygen carriers, integral to the functioning of these cycles, play a...
SolarPACES Conference 2024 Rome – First Announcement and Call for Abstracts by April 26
SolarPACES 2024 First Announcement SolarPACES (Solar Power and Chemical Energy Systems) is pleased to announce theĀ 2024 ConferenceĀ to be heldĀ fromĀ October 8-11, 2024, in Rome, Italy. SolarPACES is the premier international network advancing research, development, and...
Over 90% efficient energy storage improved by flowing heat round two pebble layers
An over 90% efficient thermal storage technology from KTH gets further refinements Energy storage will become essential to fully replace fossil fuels for industrial heat and the electric grid. Batteries are a cost-effective solution when electricity is needed as an...
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