Porcelain enamelled absorbers, coated by spectral selective tin oxide

Journal Article · Sun Feb 01 00:00:00 EST 1987 · J. Sol. Energy Eng.; (United States)

DOI:https://doi.org/10.1115/1.3268171· OSTI ID:6559961

Simonis, F; Faber, A J; Hoogendoorn, C J

The use of porcelain enamelled absorbers in flat plate collectors features longevity thanks to the durability and thermal stability of the enamel finish. The porcelain enamel can be made spectral selective by coating with doped tin oxide or indium oxide. The application procedure involves an enamelling step followed by a pyrosol process with tin or indium compounds. The optical properties of tin oxide coated enamel yield values of 0.90-0.92 absorptance and 0.13-0.18 hemispherical emittance. The temperature dependence of the emittance is very small. The thermal stability has been proved up to 400/sup 0/C in air.

• Research Organization: TNO-Institute of Applied Physics, 2600 AD, DELFT
• OSTI ID: 6559961
• Journal Information: J. Sol. Energy Eng.; (United States), Vol. 109:1
• Country of Publication: United States
• Language: English

Related Subjects

14 SOLAR ENERGY
FLAT PLATE COLLECTORS
SOLAR ABSORBERS
PORCELAIN
ABSORPTIVITY
SPECTRALLY SELECTIVE SURFACES
CRYSTAL DOPING
ENAMELS
FABRICATION
INDIUM OXIDES
STABILITY
TEMPERATURE EFFECTS
TIN OXIDES
CHALCOGENIDES
COATINGS
EQUIPMENT
INDIUM COMPOUNDS
OPTICAL PROPERTIES
OXIDES
OXYGEN COMPOUNDS
PHYSICAL PROPERTIES
SOLAR COLLECTORS
SOLAR EQUIPMENT
SURFACES
TIN COMPOUNDS
141000* - Solar Collectors & Concentrators