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Radial compressor.pptx mm

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Ajay Dua
Ajay Dua

The document provides an introduction to radial compressors, also known as centrifugal compressors. It discusses the main components of a centrifugal compressor, including the inlet, impeller, diffuser, and collector. It explains how gas enters the impeller and is pushed outward, creating high pressure and compression. Applications include gas compression for natural gas pipelines and offshore platforms. Centrifugal compressors have advantages like wide operating ranges, high reliability, and efficiency. Their disadvantages include instability at low flows and sensitivity to gas composition changes.

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Introduction to Radial Compressor Prepared BY: Submitted To: MUKESH BAJIYA Mr.MANPREET SIR
Compressors • A Compressor is a device which is used to supply air or any other gas at high pressure. • There are various types of compressor as: 1.Reciprocating Compressor 2.Rotary-Screw Compressor 3.Scroll Compressor 4.Centrifugal Compressor
1.Rotary-screw Compressor • A rotary-screw compressor is a type of gas compressor that uses a rotary-type positive- displacement mechanism. They are commonly used to replace piston compressors where large volumes of high-pressure air are needed, either for large industrial applications or to operate high-power air tools such as jackhammers.
2.Reciprocating Compressor • A reciprocating compressor or piston compressor is a positive- displacement compressor that uses pistons driven by a crankshaft to deliver gases at high pressure.
3.Scroll Compressor • A scroll compressor (also called spiral compressor, scrollpump and scroll vacuum pump) is a device for compressing air or refrigerant. It is used in air conditioning equipment, as an automobile supercharger (where it is known as a scroll- type supercharger) and as a vacuum pump.
4.Centrifugal Compressor • Centrifugal compressors, sometimes termed radial compressors, are a sub-class of dynamic axis symmetric work-absorbing turbo-machinery. The idealized compressive dynamic turbo-machine achieves a pressure rise by adding kinetic energy/velocity to a continuous flow of fluid through the rotor or impeller.
Components Of Centrifugal Compressor • Inlet The inlet to a centrifugal compressor is typically a simple pipe. It may include features such as a valve, stationary vanes/airfoils (used to help swirl the flow) and both pressure and temperature instrumentation. • Centrifugal impeller The key component that makes a compressor centrifugal is the centrifugal impeller, which contains a rotating set of vanes (or blades) that gradually raises the energy of the working gas. This is identical to an axial compressor with the exception that the gases can reach higher velocities and energy levels through the impeller's increasing radius. • Cont………….
Component • Diffuser The next key component to the simple centrifugal compressor is the diffuser. Downstream of the impeller in the flow path, it is the diffuser's responsibility to convert the kinetic energy (high velocity) of the gas into pressure by gradually slowing (diffusing) the gas velocity. Diffusers can be vaneless, vaned or an alternating combination • Collector The collector of a centrifugal compressor can take many shapes and forms.When the diffuser discharges into a large empty chamber, the collector may be termed a Plenum. When the diffuser discharges into a device that looks somewhat like a snail shell, bull's horn or a French horn, the collector is likely to be termed a volute or scroll.
Working • The gas enters the primary suction eye of this high speed rotary element known as impeller, which consists of radial vanes cast in it. As the impeller starts rotating, the blades on the impeller pushes the gas outwards from centre to open end of impeller. So a high pressure region is created which helps in the formation of compression. For perfect working of the compressor, it must be maintained in an oil seal environment.
Radial compressor.pptx mm
Working
Applications 1.Primarily used in Gas compressor components 2.Gas path for Natural gas 3.Off Shore platform applications 4.Gas Re-injection via sub sea export pipeline 5.Gas gathering 6.Typical oil compression 7.Gas shift system 8.Hydraulic compressors for Industrial machines
Advantages 1.Wide Operating ranges 2.Very high reliability 3.Low maintenance costs 4.Low initial cost 5.Medium Capacity storage 6.High efficiency 7. Their application can be from 100 horsepower (75 kW) to thousands of horsepower. 8.With multiple staging, they can achieve high output pressures greater than 10,000 psi (69 MPa).
Disadvantages 1.Very unstable when the flow is reduced. 2.Sensitive to changes in gas compositions 3.Limited compression ratios 4.Limited turn downs 5.Periodic replacement is necessary for proper functioning
Thank You All !!!!!!

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Radial compressor.pptx mm

  • 1. Introduction to Radial Compressor Prepared BY: Submitted To: MUKESH BAJIYA Mr.MANPREET SIR
  • 2. Compressors • A Compressor is a device which is used to supply air or any other gas at high pressure. • There are various types of compressor as: 1.Reciprocating Compressor 2.Rotary-Screw Compressor 3.Scroll Compressor 4.Centrifugal Compressor
  • 3. 1.Rotary-screw Compressor • A rotary-screw compressor is a type of gas compressor that uses a rotary-type positive- displacement mechanism. They are commonly used to replace piston compressors where large volumes of high-pressure air are needed, either for large industrial applications or to operate high-power air tools such as jackhammers.
  • 4. 2.Reciprocating Compressor • A reciprocating compressor or piston compressor is a positive- displacement compressor that uses pistons driven by a crankshaft to deliver gases at high pressure.
  • 5. 3.Scroll Compressor • A scroll compressor (also called spiral compressor, scrollpump and scroll vacuum pump) is a device for compressing air or refrigerant. It is used in air conditioning equipment, as an automobile supercharger (where it is known as a scroll- type supercharger) and as a vacuum pump.
  • 6. 4.Centrifugal Compressor • Centrifugal compressors, sometimes termed radial compressors, are a sub-class of dynamic axis symmetric work-absorbing turbo-machinery. The idealized compressive dynamic turbo-machine achieves a pressure rise by adding kinetic energy/velocity to a continuous flow of fluid through the rotor or impeller.
  • 7. Components Of Centrifugal Compressor • Inlet The inlet to a centrifugal compressor is typically a simple pipe. It may include features such as a valve, stationary vanes/airfoils (used to help swirl the flow) and both pressure and temperature instrumentation. • Centrifugal impeller The key component that makes a compressor centrifugal is the centrifugal impeller, which contains a rotating set of vanes (or blades) that gradually raises the energy of the working gas. This is identical to an axial compressor with the exception that the gases can reach higher velocities and energy levels through the impeller's increasing radius. • Cont………….
  • 8. Component • Diffuser The next key component to the simple centrifugal compressor is the diffuser. Downstream of the impeller in the flow path, it is the diffuser's responsibility to convert the kinetic energy (high velocity) of the gas into pressure by gradually slowing (diffusing) the gas velocity. Diffusers can be vaneless, vaned or an alternating combination • Collector The collector of a centrifugal compressor can take many shapes and forms.When the diffuser discharges into a large empty chamber, the collector may be termed a Plenum. When the diffuser discharges into a device that looks somewhat like a snail shell, bull's horn or a French horn, the collector is likely to be termed a volute or scroll.
  • 9. Working • The gas enters the primary suction eye of this high speed rotary element known as impeller, which consists of radial vanes cast in it. As the impeller starts rotating, the blades on the impeller pushes the gas outwards from centre to open end of impeller. So a high pressure region is created which helps in the formation of compression. For perfect working of the compressor, it must be maintained in an oil seal environment.
  • 12. Applications 1.Primarily used in Gas compressor components 2.Gas path for Natural gas 3.Off Shore platform applications 4.Gas Re-injection via sub sea export pipeline 5.Gas gathering 6.Typical oil compression 7.Gas shift system 8.Hydraulic compressors for Industrial machines
  • 13. Advantages 1.Wide Operating ranges 2.Very high reliability 3.Low maintenance costs 4.Low initial cost 5.Medium Capacity storage 6.High efficiency 7. Their application can be from 100 horsepower (75 kW) to thousands of horsepower. 8.With multiple staging, they can achieve high output pressures greater than 10,000 psi (69 MPa).
  • 14. Disadvantages 1.Very unstable when the flow is reduced. 2.Sensitive to changes in gas compositions 3.Limited compression ratios 4.Limited turn downs 5.Periodic replacement is necessary for proper functioning
  • 15. Thank You All !!!!!!