Contaminants, present in the air or the fuel, are deposited on the blades of a compressor or turbine.



Related Terms

INTERCOOLED CYCLE

A gas turbine employing two compressors, the compressed air from the first compressor is cooled before being discharged into a second compressor.

DISPLACEMENT COMPRESSOR

A type of compressor that depends on displacement of a volume of air by a piston moving in a cylinder.

OPEN-CYCLE GAS TURBINE

A gas turbine prime mover in which air is compressed in the compressor element, fuel is injected and burned in the combustor, and the hot products are expanded in the turbine element and exhausted to the atmosphere.

AXIAL FLOW COMPRESSOR

A compressor that uses rotor blades shaped like airfoils that give the air a high velocity and push it into subsequent stationary blade passages that convert the velocity energy into pressure. This process is repeated through several stages. The airflow movement is axial.

PISTON BLOWER

A piston-operated, positive-displacement air compressor used for stationary, automobile, and marine duty.

TURBO CHARGER

The blades of a turbine in the outlet exhaust flow of an engine are driven by the gases flowing over them. Compressor blades at the other end of the same axle are spun in the inlet flow, drawing large volumes of air into the cylinders. This enables faster combustion than naturally aspirated engines and increases power of the engine.

VACUUM PUM

Low-pressure air compressor that takes suction from a region below atmospheric pressure (turbine condenser) and discharge into the atmosphere.

HOOKAH

An air supply device used in free diving, comprising a demand regulator worn by the diver and a hose extending to a compressed air supply at the surface.

SALR

Saturated Adiabatic Lapse Rate; the rate at which the temperature of water vapour saturated air changes as it ascends or descends. It is taken as 1.5 degree Celsius per 1000ft.

DEGAS

Removing air from a liquid, usually by ultrasonic and/or vacuum methods.

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