Journal ArticleDOI
The production of zinc by thermal dissociation of zinc oxide - Solar chemical reactor design
TLDR
In this article, the authors describe the design, fabrication, and preliminary test of a solar chemical reactor for conducting the thermal dissociation of ZnO into zinc and oxygen at above 2000 K.About:
This article is published in Solar Energy.The article was published on 1999-07-01. It has received 158 citations till now. The article focuses on the topics: Solar energy & Solar furnace.read more
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Solar thermochemical production of hydrogen--a review
Aldo Steinfeld,Aldo Steinfeld +1 more
TL;DR: In this paper, the authors review the underlying science and describes the technological advances in the field of solar thermochemical production of hydrogen that uses concentrated solar radiation as the energy source of high-temperature process heat.
Journal ArticleDOI
“Green” path from fossil-based to hydrogen economy: An overview of carbon-neutral technologies
Nazim Muradov,T. Nejat Veziroglu +1 more
TL;DR: In this article, the authors compare various fossil decarbonization strategies and evaluate the potential of nuclear and renewable energy resources to meet the 10-TW target, and propose a scenario for the transition from current fossil-based to hydrogen economy that includes two key elements: (i) changing the fossildecarbonization strategy from one based on CO2 sequestration to one that involves sequestration and/or utilization of solid carbon, and (ii) producing carbon-neutral synthetic fuels from bio-carbon and hydrogen generated from water using carbon-free sources (nuclear, solar, wind, ge
Journal ArticleDOI
Solar hydrogen production via a two-step water-splitting thermochemical cycle based on Zn/ZnO redox reactions
Aldo Steinfeld,Aldo Steinfeld +1 more
TL;DR: In this article, a 2nd-law analysis performed on the closed cyclic process indicates a maximum exergy conversion efficiency of 29% (ratio of Δ G 298 K °| H 2 + 0.5 O 2 → H 2 O for the H 2 produced to the solar power input), when using a solar cavity-receiver operated at 2300 K and subjected to a solar flux concentration ratio of 5000.
Journal ArticleDOI
Thermochemical hydrogen production from a two-step solar-driven water-splitting cycle based on cerium oxides
Stéphane Abanades,Gilles Flamant +1 more
TL;DR: In this paper, a two-stage thermochemical cycle for H2 production based on CeO2/Ce2O3 oxides has been successfully demonstrated, which consists of two chemical steps: (1) reduction, 2CeO2→Ce 2O3++ 0.5O2; (2) hydrolysis, Ce2O 3+H2O→2Ce O 2+H 2
Journal ArticleDOI
Screening of water-splitting thermochemical cycles potentially attractive for hydrogen production by concentrated solar energy
TL;DR: In this paper, a database of 280 water splitting thermochemical cycles was used to identify potentially attractive water splitting cycles for hydrogen production and evaluated them in the temperature range of 900-2000°C.
References
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Book
High collection nonimaging optics
TL;DR: In this paper, a methodology for designing high collection non-irnaging systems is described, which can exceed the concentration attainable with focusing techniques by factors of four or more and approach the theoretical limit.
Journal ArticleDOI
Optimum aperture size and operating temperature of a solar cavity-receiver
Aldo Steinfeld,Markus Schubnell +1 more
TL;DR: In this paper, the authors proposed a semi-empirical method to determine the optimum aperture size and operating temperature of a solar cavity-receiver for which its energy conversion efficiency is maximized.
Journal ArticleDOI
DESIGN ASPECTS OF SOLAR THERMOCHEMICAL ENGINEERING—A CASE STUDY: TWO-STEP WATER-SPLITTING CYCLE USING THE Fe3O4/FeO REDOX SYSTEM
TL;DR: In this article, a methodology for the initial development of solar thermochemical reactors for converting concentrated solar energy into chemical fuels is described, which consists of determining the implications that the thermodynamics and kinetics of the chemical transformation have on the initial reactor design.
Journal ArticleDOI
Solar-processed metals as clean energy carriers and water-splitters
TL;DR: Two-step solar thermochemical cycles and processes for the production of hydrogen, hydrocarbons, and synthesis gas are considered in this paper, where the thermodynamics of both reaction steps are examined and relevant experimental studies conducted using solar energy are reviewed.
Journal ArticleDOI
A solar chemical reactor for co-production of zinc and synthesis gas
TL;DR: In this paper, a novel solar chemical reactor was designed to perform the combined ZnO-reduction and CH4-reforming processes, consisting of a gas-particle vortex flow confined to a solar cavity-receiver that is exposed to concentrated solar irradiation.
Related Papers (5)
Solar hydrogen production via a two-step water-splitting thermochemical cycle based on Zn/ZnO redox reactions
Aldo Steinfeld,Aldo Steinfeld +1 more