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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| G |
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| gage (gauge) |
gage (gauge)
1. instrument for measuring pressure, flow,
level, or other factor. 2. arbitrary scale of measurement for sheet
metal thickness and wire and drill diameters |
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| gage glass | device for showing liquid level |
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| gas | state of matter in which substances exist in the
form of nonaggregated molecules, and which, within acceptable limits of
accuracy, satisfy the ideal gas laws; usually a highly superheated vapor. See
state |
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| gas binding rate | gas ebullition rate that flushes liquid out of
the evaporator, creating a pressure that prevents infeed, resulting in drying
of the evaporator surface. |
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| gas capacity (I-P) | concept of power throughput, in Btu/h, at 1-inch
water column pressure drop for the gas being used. |
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| gas demand rate | rate at which gas is
delivered to or by a system, part of a system, or a piece of equipment,
expressed in cubic feet (cubic metres or litres) or therms (MJ) or multiples
thereof, for a designated period called the demand interval. Compare gas load |
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| gas enrichment | increasing the heat content of a gas by mixing
with it a gas of higher heat content. gaseous state see state; gas; phase |
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| gas load | amount of gas delivered or required at any
specified point or points on a system; load originates primarily at the
gas-consuming equipment of customers |
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| generating capability (electric) | maximum load that a generating unit, generating
station, or other electrical apparatus can carry under specified conditions for
a given period, without exceeding approved limits of temperature and stress
ratings. |
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| gland | device for preventing leakage at a machine
joint, such as where a shaft emerges from a vessel containing a fluid under
pressure |
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