1991
DOI: 10.1016/0165-1633(91)90059-t
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Advanced high-temperature two-slab selective volumetric receiver

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Cited by 34 publications
(9 citation statements)
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“…Due to its high absorptance values, superficial area, porosity and high fusion point (4), and its good thermo-mechanical properties (5,6) at high temperatures, SiC presents great advantages for applications in solar receptors used in a central tower plant, having a positive impact on the efficiency of the processes of electrical energy production (6)(7)(8). The receptors used in central tower plants usually working from 500°C and above 1000°C (2), at this temperature, the required materials must be able to endure not only everyday use but also long periods of time maintaining its properties and characteristics.…”
Section: Introductionmentioning
confidence: 99%
“…Due to its high absorptance values, superficial area, porosity and high fusion point (4), and its good thermo-mechanical properties (5,6) at high temperatures, SiC presents great advantages for applications in solar receptors used in a central tower plant, having a positive impact on the efficiency of the processes of electrical energy production (6)(7)(8). The receptors used in central tower plants usually working from 500°C and above 1000°C (2), at this temperature, the required materials must be able to endure not only everyday use but also long periods of time maintaining its properties and characteristics.…”
Section: Introductionmentioning
confidence: 99%
“…The working fluid is generally drawn through their irradiated surface. 11 The receiver was composed of an external silica square-channel monolithic honeycomb (transparent in the solar spectrum and absorbent in the infrared band) and an internal layer of solar absorbent silicon carbide particles. 6 Structures are arranged into a volume so that maximum wall temperatures in operation are found deep inside the heat exchanging matrix.…”
Section: Introductionmentioning
confidence: 99%
“…In order to enhance the spectral selectivity of volumetric absorbers, several works consisting of bilayer structures have been studied. [3] presents a two-slab structure: the first slab is composed of glass-beads transmitting the solar rays to the absorbent second slab made of silica honeycomb. Another way to make bilayer structure is to functionalize the absorber with a selective coating: [4], [5] or [6] present different spinel oxide coatings with a high temperature and oxidation stability and good selective efficiencies, showing that oxide coatings can be a suitable way to improve spectral selectivity of SiC absorbers.…”
Section: Introductionmentioning
confidence: 99%