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Related Flashcards
Related Topics
Cards In This Set
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Absolute humidity
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Amount of moisture in the air, indicated in grains per cu. ft.
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Absolute temperature
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Temperature measured from zero
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Activated charcoal
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Highly absorbent charcoal that is free of contamination
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Active system
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Solar heating system using mechanical means of heat collection, storage, and distribution
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AGA
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American Gas Association
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Air ducts
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Pipes that carry warm and cold air to rooms and return back to the heating or cooling system
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Air-heating collector
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Solar collector, such as a thermosiphoning air panel (TAP) or window box collector, designed to absorb solar energy, convert it to heat and transfer the heat, to air flowing from the house, through the collector, and back to the house.
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Air return
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Air that returns from conditioned or refrigerated space to the source
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Alpha particle
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Energized particle made up of two protons and two neutrons that is ejected from a radioactive atom.
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Annual fuel utilization efficiency (AFUE)
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Rating that measures the average annual seasonal efficiency of a boiler or furnace by measuring the heat produced from a given amount of fuel.
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Anticipating control
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One that is artificially forced to cut in or out before it originally would, thus starting cooling before needed or stopping heating before the control point is reached. It reduces the temperature fluctuation or override.
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Ash dump
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Trap door that allows ashes to drop to a pit below for removal.
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Background radiation
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Average radiation from all sources found in the surroundings.
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Balance point
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Where the heat pump capacity exactly matches the heating loss.
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Balancing damper
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Baffle or plate used to control the volume of flowing air in a confined area.
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