The DIAPR: A high-pressure, high-temperature solar receiver

Conference · Wed Nov 01 04:00:00 EST 1995

OSTI ID:113331

Karni, J; Kribus, A; Rubin, R; Doron, P; Fiterman, A ^[1]; Sagie, D ^[2]

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1. Weizmann Inst. of Science, Rehovot (Israel). Environmental Science and Energy Research Dept.
2. Rotem Industries Ltd., Beer-Sheva (Israel)

A solar central receiver absorbs concentrated sunlight and transfers its energy to a working medium (gas, liquid or solid particles), either in a thermal or a thermochemical process. Various attractive high-performance applications require the solar receiver to supply the working fluid at high temperature (700--1,300 C) and high pressure (up to 30 bar). As the inner receiver temperature may be well over 1,000 C, sunlight concentration at its aperture must be high (4--8 MW/m{sup 2}), to minimize aperture size and reradiation losses. The Directly Irradiated Annular Pressurized Receiver (DIAPR) is a volumetric (directly-irradiated), windowed cavity receiver that operates at aperture flux of up to 10 MW/m{sup 2}. It is capable of supplying hot gas at a pressure of 10--30 bars and exit temperature of up to 1,300 C. The three main innovative components of this receiver are: a `Porcupine` type alumina absorber; a Frustum-Like High-Pressure (FLHIP) window, made of fused silica; and a two-stage secondary concentrator followed by the `KohinOr` light extractor.

• OSTI ID: 113331
• Report Number(s): CONF-950336--; ISBN 0-7918-1300-2
• Country of Publication: United States
• Language: English

Related Subjects

14 SOLAR ENERGY
DESIGN
MIRRORS
PERFORMANCE
SOLAR REFLECTORS
TOWER FOCUS COLLECTORS