Thermal Modeling of a Small-Particle Solar Central Receiver

[+] Author and Article Information
Fletcher J. Miller

National Center for Microgravity Research*, NASA Glenn Research Center, MS 110-3, Cleveland, Ohio 44135-3191e-mail: fletcher@grc.nasa.gov

Roland W. Koenigsdorff

University of Applied Sciences at Biberach*, Karlstr. 9-11, D-88400 Biberach, Germanye-mail: koenigsdorff@fh-biberach.de

J. Sol. Energy Eng 122(1), 23-29 (Feb 01, 2000) (7 pages) doi:10.1115/1.556277 History: Received June 01, 1998; Revised February 01, 2000
Copyright © 2000 by ASME
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Grahic Jump Location
Small-particle cavity receiver. Incident radiation is parallel to the y-axis, flow is parallel to the z-axis.
Grahic Jump Location
Radiation differential volume used to derive the six-flux equations
Grahic Jump Location
Receiver divided into control volumes: (a) top view; (b) side view (looking at window). Dots are grid points, dashed lines are control volume boundaries.
Grahic Jump Location
Receiver efficiency vs. mass flow rate. Also shown is the receiver coupled to a Carnot cycle which results in an optimum flow rate.
Grahic Jump Location
Heating profiles for three locations in the receiver




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