Measuring point for compressor acceptance test. Temperature at
the compressor inlet flange.
Measuring point for compressor acceptance test. Temperature
before an orifice or nozzle, downstream of compressor discharge.
Is the property of a substance that gauges the potential or
driving force for the flow of heat.
The temperature of a body referred to the absolute zero, at
which point the volume of an ideal gas theoretically becomes zero.
(Fahrenheit scale is minus 459.67°F / Celsius scale is minus
Is the temperature existing at the discharge port of the
Is the temperature at the inlet flange of the compressor.
The toal temperature at the intake flange of the compressor.
Is the ratio of the computed isentropic temperature rise to
the measured total temperature rise during compression.
The actual temperature of a moving gas stream. It is the
temperature indicated by a thermometer moving in the stream with
the same velocity as the stream.
The temperature which would be measured at the stagnation
point if a gas stream were stopped, with adiabatic compression
from the flow condition to the stagnation pressure.
The power required to compress a gas isothermally through a
specified range of pressures.
is an ejector used to compress waste or exhaust steam or any
other gas through a moderate range of compression above
Material that stores energy, although mass will also retain
coolness. The thermal storage capacity of a material is a measure
of the material's ability to absorb and store heat.
first law of
The amount of work done on or by a system is equal to the
amount of energy transferred to or from the
second law of
Heat cannot, of itself, pass from a colder to a hotter
The part of a rotating element that counteracts any inherent
thrust developed by the impellers.
A type of journal bearing in centrifugal air compressors.
A unit of pressure used with vacuum pumps, equal to 1mm of
mercury and 133.32 Pascal's.
Total package input
The total electrical power input to a compressor, including
drive motor, cooling fan, motors, controls, etc.
Torsional moment or couple. It usually refers to the driving
couple of a machine or motor.
A compressor belonging to the group of displacement
A device for mounting cylinders.
An air operated device for hoisting or pulling. Similar to a
slusher or winch
A receptacle, open to atmosphere, that is used to used to
collect condensate. For example, two or three drain pipes from
various filters may be discharging into a funnel. In this case the
funnel is a tundish.
Two stage compressor
Machines in which air or gas is compressed from initial
pressure to an intermediate pressure in one or more cylinders or
Two step control
Load/unload control system that tries to maximizes compressor
efficiency by matching air delivery and air demand. Compressor is
operated at full load or idle