Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 6 of 6 for “"low-emissivity"”.
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An Investigation of Metal Sulfides as the Source of the Low Emissivity Anomaly on the Highlands of Venus
… in the 1960s the source of the unusual radar emissivity signal seen on several highlands on Venus has long eluded researchers. Researchers have determined that a mineral with a high dielectric constant could explain the signal. Using a Venus simulation chamber, we experimentally investigated …
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Droplet growth kinetics on superhydrophobic surfaces and future work on combating cryogenic surface contamination
… rate during droplet growth as well as following droplet sweeping—where large droplets sweep away other droplets on an inclined surface. Droplet growth rates on a given surface primarily depend on background vapor pressure and the extent of wall subcooling. Here, I report that larger …
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A 3-Dimensional Computer Simulation Model for Temperature Distribution Prediction in a Seafood Shipping Container
… by approximately 3 °C (maximum) due to the low emissivity of aluminum foil. The model was applied to study the effect of various combinations of insulation and coolant quantities on the temperature distribution and the packaging cost. It was found that the fish container with 1.70 cm thick …
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Electrical Transport and Scattering Mechanisms in Thin Silver Films for Thermally Insulating Glazing
Thin silver films are widely used in low-emissivity coatings for building glazing due to their high reflectance in the infrared and high transmittance in the visible spectrum. The determining parameter for the infrared reflectance is the electrical conductance of the layer stack - the better the …
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Modeling, fabrication and optimization of optically transparent - thermally insulating silica aerogels for solar thermal applications
… (high absorptivity in the solar spectrum, and low emissivity in the infra-red (IR)) to minimize thermal re-radiation. Here, we present an alternate approach that operates at atmospheric pressures with simple, black, absorbing surfaces. An Optically Transparent Thermally Insulating (OTTI) layer …
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Parametric Study of Novel Passive Thermal Control Technology for Spacecraft
Thermochromic variable emissivity materials (VEMs) are a relatively new passive thermal control technology used for spacecraft radiators. VEMs passively change their emissivity based on their temperature, with VEMs having low emissivity at low temperatures and high emissivity at high temperatures. …