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TECHNICAL BRIEFS

A New 75 kW High-Flux Solar Simulator for High-Temperature Thermal and Thermochemical Research

[+] Author and Article Information
D. Hirsch, P. v. Zedtwitz, T. Osinga

Institute of Energy Technology, Department of Mechanical and Process Engineering, ETH-Swiss Federal Institute of Technology, ETH-Zentrum, CH-8092 Zurich, Switzerland

J. Kinamore

Vortek Industries Ltd., Vancouver BC, V6P 6T7 Canada

A. Steinfeld

Institute of Energy Technology, ETH-Swiss Federal Institute of Technology, CH-8092 Zurich, SwitzerlandSolar Process Technology, Paul Scherrer Institute, CH-5232 Villigen, Switzerland e-mail: aldo.steinfeld@eth.ch

J. Sol. Energy Eng 125(1), 117-120 (Jan 27, 2003) (4 pages) doi:10.1115/1.1528922 History: Received August 01, 2001; Revised April 01, 2002; Online January 27, 2003
Copyright © 2003 by ASME
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References

Vortek Industries Ltd., 1999, Model 201-200/200 200 kW Arc Lamp System, Vancouver BC, V6P 6T7 Canada.
Welford, W.T., and Winston, R., 1989, High Collection Nonimaging Optics, Academic Press, San Diego, CA.
Seitz, T., 1995, “SunFlux: A Flux Measurement System for Solar Concentrators,” SolarPACES Technical Report No. III-2/95, A. Newmann, ed., DLR, 51140 Cologne, Germany, pp. 45–54.
SolarPACES, 1996, Solar Thermal Test Facilities, Editorial CIEMAT, Madrid.
Steinfeld,  A., and Schubnell,  M., 1993, “Optimum Aperture Size and Operating Temperature of a Solar Cavity-Receiver,” Sol. Energy, 50, pp. 19–25.
Steinfeld, A., and Palumbo, R., 2001, “Solar Thermochemical Process Technology,” Encyclopedia of Physical Science and Technology, R. A. Meyers, ed., Academic Press, 15 , pp. 237–256.
Further information is found at www.pre.ethz.ch.

Figures

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The High-Flux Solar Simulator at ETH. The argon arc lamp is enclosed by an elliptical mirror that redirects the radiant power into the target.
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Schematic of high-pressure argon arc configuration showing swirling water flow for internal cooling of quartz envelope 1
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Spectral distribution of radiant energy emitted by the argon arc lamp 1
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Optical configuration of the elliptical-trough reflector coupled to a 2D-CPC and a matching involute for achieving uniform irradiation on a tubular receiver
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Variation of the peak power flux at the focal plane and the electrical power input to the arc as a function of the arc electrical current
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Distribution of the power flux (in kW/m2) measured at the focal plane, for an arc electrical current of 500 A. The x-axis is parallel to the arc direction.
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Radiative power and mean power flux intercepted by a circular target as a function of its diameter, for an arc electrical current of 500 A (calculated by numerical integration of the measured power fluxes over the target’s area). The circular target is positioned at the focal plane with its center at the point of maximum power flux.
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Variation of the radiative power intercepted by a circular target as a function of the arc electrical current. The parameter is the target’s diameter.

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