Glossary
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The terms and definitions included
in this glossary were taken from "ASHRAE Terminology of Heating, Ventilation,
Air Conditioning & Refrigeration".
To access the complete glossary please
visit ASHRAE's Bookstore.
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| gravity current | stream of incoming fluid that moves horizontally
immediately adjacent to the upper or lower boundaries of a stagnant body of
fluid. The stream moves due to density differences between the fluid in the
stream and that in the stagnant body of fluid. See also Froude number |
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| grille | louvered or perforated covering for an opening
in an air passage, which can be located in a sidewall, ceiling, or floor |
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| gross capacity |
load (uncorrected) that a machine, apparatus,
device, or system is designed to carry. |
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| ground coupling | in a thermal storage system or a heat pump, a
closed loop of piping, plastic tubing, or ducting used as a heat exchanger
between the ground, acting as a low-grade heat source, and a circulating fluid. |
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| ground fault |
unintentional electrical connection to ground.
electrical ground zero voltage, or any point electrically connected to the
earth, or ground |
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| guide vane assembly | assembly of adjustable guide vanes fitted to the
inlet of a fan or turbocompressor. Its function is to modify the flow and the
pressure/flow rate. |
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