Compressors are similar to pump
Compressors are similar to pump, both increase the pressure on a fluid and both can transport a pipe. As gases are compressible, the compressor also reduces the volume of a gas. Liquids are relatively incompressible, while some can be compressed, the main action of a pump is to pressurize and transport liquids.
Types of compressors
The main types of compressors are shown below:
Compressor types
Positive displacement
Dynamic
1. Reciprocating.
2. Rotary
1.Centrifugal. 2. Axial
a) Single acting.
a) Lobe
b) Double acting.
b) Screw
Dynamic Compressor
A type of compressor that delivers larger volumes of air at lower pressures. Common types of dynamic compressors include centrifugal and axial compressors.
Centrifugal Compressors
A centrifugal compressor is a radial flow rot dynamic fluid machine that uses mostly air as the working fluid and utilizes the mechanical energy imparted to the machine from outside to increase the total internal energy of the fluid mainly in the form of increased static pressure head.
During the second world war most of the gas turbine units used centrifugal compressors.
Attention was focused on the simple turbojet units where low power-plant weight was of great importance. Since the war, however, the axial compressors have been developed to the point where it has an appreciably higher isentropic efficiency. Though centrifugal compressors are not that popular today, there is renewed interest in the centrifugal stage, used in conjunction with one or more axial stages, for small turbofan and turboprop aircraft engines. 1|Page
A centrifugal compressor essentially consists of three components.
1. A stationary casing
2. A rotating impeller as shown in Fig. which imparts a high velocity to the air.
3. A diffuser consisting of a number of fixed diverging passages in which the air is decelerated with a consequent rise in static pressure.
Figure: Schematic views of a centrifugal
Types of compressors
The main types of compressors are shown below:
Compressor types
Positive displacement
Dynamic
1. Reciprocating.
2. Rotary
1.Centrifugal. 2. Axial
a) Single acting.
a) Lobe
b) Double acting.
b) Screw
Dynamic Compressor
A type of compressor that delivers larger volumes of air at lower pressures. Common types of dynamic compressors include centrifugal and axial compressors.
Centrifugal Compressors
A centrifugal compressor is a radial flow rot dynamic fluid machine that uses mostly air as the working fluid and utilizes the mechanical energy imparted to the machine from outside to increase the total internal energy of the fluid mainly in the form of increased static pressure head.
During the second world war most of the gas turbine units used centrifugal compressors.
Attention was focused on the simple turbojet units where low power-plant weight was of great importance. Since the war, however, the axial compressors have been developed to the point where it has an appreciably higher isentropic efficiency. Though centrifugal compressors are not that popular today, there is renewed interest in the centrifugal stage, used in conjunction with one or more axial stages, for small turbofan and turboprop aircraft engines. 1|Page
A centrifugal compressor essentially consists of three components.
1. A stationary casing
2. A rotating impeller as shown in Fig. which imparts a high velocity to the air.
3. A diffuser consisting of a number of fixed diverging passages in which the air is decelerated with a consequent rise in static pressure.
Figure: Schematic views of a centrifugal