Kiln Department Operations: A Comprehensive Q&A Guide, Exams of
Advanced Education
Absorption, Liquid - ANSWERThe taking in or imbibing of a liquid
Absorbed Water - ANSWERIn context of wood drying, adsorbed water is held
in wood substance by hygroscopic or molecular attraction
Air, Entering - ANSWERHeated air just as it enters the kiln loads of lumber
Air, Fresh - ANSWERAir brought into the dryer to replace vented air
Air, Laminar - ANSWERIn kiln drying, airflow across the lumber, parallel to the
stickers, which is very smooth and layered, with no eddies or swirls; generally
considered a condition in which velocity is too low to produce an optimum
drying effect
Air, Leaving - ANSWERAir just after it leaves the kiln loads of lumber. It is
usually at a lower temperature than enerting air
, Air, Turbulent - ANSWERIn kiln drying, airflow across the lumber, parallel to
the stickers, which is not layered and has fluctuations creating definite eddies
and swirls; is generally considered preferable to laminar flow for optimum
drying
Air Binding - ANSWERThe presence of air (generally in pockets) in steam coils
and traps, which interferes with the normal flow of steam and condensate
Air Reversal - ANSWERChanging the airflow to flow in the opposite direction
through a load of drying lumber or products
Air Travel, Length of - ANSWERThe distance between the entering- and
leaving air sides of the kiln charge
Air Velocity - ANSWERThe speed at which air moves, generally measured in
feet per minute
Air Volume - ANSWERThe total amount of air occupying or moving through a
given space, generally measured in cubic feet
Anemometer - ANSWERAn instrument for measuring air velocity
Annual Growth Ring - ANSWERThe growth layer put on a tree each year in
temperate climates, or each growing season in other climates; each ring
includes spring wood and summer wood
Advanced Education
Absorption, Liquid - ANSWERThe taking in or imbibing of a liquid
Absorbed Water - ANSWERIn context of wood drying, adsorbed water is held
in wood substance by hygroscopic or molecular attraction
Air, Entering - ANSWERHeated air just as it enters the kiln loads of lumber
Air, Fresh - ANSWERAir brought into the dryer to replace vented air
Air, Laminar - ANSWERIn kiln drying, airflow across the lumber, parallel to the
stickers, which is very smooth and layered, with no eddies or swirls; generally
considered a condition in which velocity is too low to produce an optimum
drying effect
Air, Leaving - ANSWERAir just after it leaves the kiln loads of lumber. It is
usually at a lower temperature than enerting air
, Air, Turbulent - ANSWERIn kiln drying, airflow across the lumber, parallel to
the stickers, which is not layered and has fluctuations creating definite eddies
and swirls; is generally considered preferable to laminar flow for optimum
drying
Air Binding - ANSWERThe presence of air (generally in pockets) in steam coils
and traps, which interferes with the normal flow of steam and condensate
Air Reversal - ANSWERChanging the airflow to flow in the opposite direction
through a load of drying lumber or products
Air Travel, Length of - ANSWERThe distance between the entering- and
leaving air sides of the kiln charge
Air Velocity - ANSWERThe speed at which air moves, generally measured in
feet per minute
Air Volume - ANSWERThe total amount of air occupying or moving through a
given space, generally measured in cubic feet
Anemometer - ANSWERAn instrument for measuring air velocity
Annual Growth Ring - ANSWERThe growth layer put on a tree each year in
temperate climates, or each growing season in other climates; each ring
includes spring wood and summer wood
