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Energy efficiency
Industry: Energy
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Energy efficiency
Evacuated-tube collector
Energy; Energy efficiency
A collector is the mechanism in which fluid (water or diluted antifreeze, for example) is heated by the sun in a solar hot water system. Evacuated-tube collectors are made up of rows of parallel, ...
Filament
Energy; Energy efficiency
A coil of tungsten wire suspended in a vacuum or inert gas-filled bulb. When heated by electricity the tungsten "filament" glows.
Drainback solar systems
Energy; Energy efficiency
A closed-loop solar heating system in which the heat transfer fluid in the collector loop drains into a tank or reservoir whenever the booster pump stops to protect the collector loop from freezing.
Gallium arsenide
Energy; Energy efficiency
A compound used to make certain types of solar photovoltaic cells.
Temperature/pressure relief valve
Energy; Energy efficiency
A component of a water heating system that opens at a designated temperature or pressure to prevent a possible tank, radiator, or delivery pipe rupture.
Penstock
Energy; Energy efficiency
A component of a hydropower plant; a pipe that delivers water to the turbine.
Vent
Energy; Energy efficiency
A component of a heating or ventilation appliance used to conduct fresh air into, or waste air or combustion gases out of, an appliance or interior space.
