We report on the improved operational performance and energy conversion efficiency of a 5-kW solar chemical reactor for the combined ZnO-reduction and -reforming SynMet process. The reactor features a pulsed vortex flow of laden with ZnO particles, which is confined to a cavity-receiver and directly exposed to solar power fluxes exceeding Reactants were continuously fed at ambient temperature, heated by direct irradiation to above and converted to Zn and syngas during mean residence times of 10 seconds. Typical chemical conversion attained was 100% for ZnO and up to 96% for The thermal efficiency was in the 15–22% range; the exergy efficiency reached up to 7.7% and may be increased by recovering the sensible and latent heat of the products. The SynMet process avoids emissions of greenhouse-gases and other pollutant derived from the traditional fossil-fuel-based production of zinc and syngas, and further converts solar energy into storable and transportable chemical fuels.
Operational Performance of a 5-kW Solar Chemical Reactor for the Co-Production of Zinc and Syngas
Contributed by the Solar Energy Division of THE AMERICAN SOCIETY OF MECHANICAL ENGINEERS for publication in the ASME JOURNAL OF SOLAR ENERGY ENGINEERING. Manuscript received by the ASME Solar Energy Division, March 2002; final revision, June 2002. Associate Editor: A. Kripus.
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Kra¨upl , S., and Steinfeld , A. (January 27, 2003). "Operational Performance of a 5-kW Solar Chemical Reactor for the Co-Production of Zinc and Syngas ." ASME. J. Sol. Energy Eng. February 2003; 125(1): 124–126. https://doi.org/10.1115/1.1530196
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