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A refrigeration system utilizes a compressor, a turboexpander and an electric motor. Depending on the operating conditions, the turboexpander reduces the load on the electric motor by 6–15% compared to a conventional vapor-compression refrigeration system that uses a throttling expansion valve rather than a turboexpander. [12]
A gray card is a flat object of a neutral-gray color that derives from a flat reflectance spectrum. A typical example is the Kodak R-27 set, which contains one 8 in × 10 in (20 cm × 25 cm) card and one 4 in × 5 in (10 cm × 13 cm) card, each with an 18% reflectance across the visible spectrum, and a white reverse side with a 90% reflectance.
An axial compressor is a gas compressor that can continuously pressurize gases. It is a rotating, airfoil -based compressor in which the gas or working fluid principally flows parallel to the axis of rotation, or axially. This differs from other rotating compressors such as centrifugal compressor, axi-centrifugal compressors and mixed-flow ...
Georgia, officially the State of Georgia, is a state in the Southeastern region of the United States. It borders Tennessee to the northwest, North Carolina to the north, South Carolina to the northeast, the Atlantic Ocean to the southeast, Florida to the south, and Alabama to the west. Of the 50 United States, Georgia is the 24th-largest by ...
Humidity is the concentration of water vapor present in the air. Water vapor, the gaseous state of water, is generally invisible to the human eye. [2] Humidity indicates the likelihood for precipitation, dew, or fog to be present. Humidity depends on the temperature and pressure of the system of interest.
Virginia Gov. Glenn Youngkin issued a new executive order Tuesday that will limit or ban cell phone use in public schools – the latest in a string of efforts by officials to crack down on what ...