Experimental Investigation of an Atmospheric-Open Cyclone Solar Reactor for Solid-Gas Thermochemical Reactions

[+] Author and Article Information
A. Steinfeld, A. Imhof, D. Mischler

Laboratory for Energy and Process Technology, Paul Scherrer Institute, CH-5232 Villigen-PSI, Switzerland

J. Sol. Energy Eng 114(3), 171-174 (Aug 01, 1992) (4 pages) doi:10.1115/1.2930001 History: Received November 01, 1991; Revised January 01, 1992; Online June 06, 2008


A solar receiver-reactor has been designed to conduct solid-gas chemical reactions, using concentrated solar radiation as the energy source of high-temperature process heat. It consists of a conical cyclone gas-particle separator that has been modified to let concentrated solar energy enter the cavity through a windowless (atmospheric-open) aperture. It combines the advantages of cavity receivers and volumetric reactors, and permits continuous mode of operation. A small-scale prototype reactor to conduct the thermal decomposition of calcium carbonate at 1300 K was experimentally investigated in a solar furnace. Its thermal performance was evaluated. The mean energy absorption efficiency, based on the optically measured power incident on the receiver aperture, was 43 percent. Reaction products showed high degree of calcination.

Copyright © 1992 by The American Society of Mechanical Engineers
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