Design of ceramic components for solar receiver systems

Conference · Fri Jun 01 00:00:00 EDT 1984 · Am. Soc. Mech. Eng., (Pap.); (United States)

OSTI ID:6083462

Coombs, M; Kotchick, D; Strumpf, H

In many concentrating solar receiver systems, overall system efficiency is restricted by the temperature limitations of current metallic components. Significant improvements in performance can be attained by using ceramic materials in these high-temperature solar receivers. However, the unique properties of ceramics require a special design approach. Since ceramics are brittle materials, any high stress concentration at cracks, flaws, defects, or rapidly changing geometry will not be relieved by the yielding that normally occurs in most metallic designs. Because the material strength is controlled by the distribution of these flaws, a probabilistic design approach is required. The reliability of a ceramic structure is then calculated by combining local probabilities of failure using the Weibull ''weakest link,'' or weakest flaw, theory. This design methodology was applied analytically to the 1 Mw /SUB t/ Bench Model Solar Receiver (BMSR) in an effort to improve the reliability of the hot tube-tomanifold ceramic joints.

• Research Organization: AiResearch Manufacturing Company, A Division of The Garrett Corporation, Torrance, California
• OSTI ID: 6083462
• Report Number(s): CONF-840647-
• Journal Information: Am. Soc. Mech. Eng., (Pap.); (United States), Journal Name: Am. Soc. Mech. Eng., (Pap.); (United States) Vol. 84-PVP-127; ISSN ASMSA
• Country of Publication: United States
• Language: English

Related Subjects

14 SOLAR ENERGY
141000* -- Solar Collectors & Concentrators
36 MATERIALS SCIENCE
360201 -- Ceramics
Cermets
& Refractories-- Preparation & Fabrication
BRITTLENESS
CERAMICS
CRACKS
DEFECTS
DESIGN
EFFICIENCY
ELEMENTS
FABRICATION
GEOMETRY
JOINTS
MATERIALS WORKING
MATHEMATICS
MECHANICAL PROPERTIES
METALS
PROBABILITY
RELIABILITY
SOLAR RECEIVERS
STRESSES
TEMPERATURE EFFECTS